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DESCRIPTION: With the develop-ment of Portuguese seafaring in the 15th century and the subsequent widening if the southern horizon, the problem of a€?harmonizinga€™ or reconciling the traditional world views laid down by Pliny, Ptolemy, Aristotle and Ambrose with that of the new discoveries became increasingly acute.
Beyond the equinoctial line Ptolemy records an unknown land, but Pomponius [Mela] and many others as well raise a doubt whether a voyage is possible from this place to India; [nevertheless] they say that many have passed through these parts from India to Spain . This rather refreshing disposition towards agnosticism is exemplified again in the configuration of South Africa.
Also typical of maps of the period, the anonymously compiled Genoese map is covered with legends in Latin, castellated towns representing major population centers, princes on their thrones, and loxodromes from the portolan tradition. This map is now the property of the Italian Government, and is to be found in the Biblioteca Nazionale Centrale of Florence, being catalogued Sezione Palatina No. The Genoese map became the center of controversy in the 1940s when the Italian scholar Sebastiano Crino, suggested that this was a copy of the map that Paolo Toscanelli sent to the Portuguese court in 1474 and later but less certainly to Columbus, was a copy of it, touting the possibility of a sea route to India via the Atlantic. A Genoese flag in the upper northwest corner of the map establishes this mapa€™s origin, along with the coat of arms of the Spinolas, a prominent Genoese mercantile family. The map is elliptical in shape, having a major axis measuring 81 cm and a minor axis measuring 42 cm. Ptolemy is cited by name in several inscriptions, and there is evidence of his influence in the representation of Africa (Ethiopia, the source of the Nile), an enclosed Caspian Sea (Mar de Sara), the southern coast of Asia, and the Golden Chersonese, not named but identified by a legend noting that it is particularly rich in gold and precious stones. Paradise does not appear on the map, and an inscription in southeastern Africa tells us why: a€?In this region some depict the earthly paradise. Of course, the cosmographers had no objection to monsters - even Ptolemy mentions a few, although he did not put them on his maps. Although its cartographer explicitly disapproved of fantastic narratives in a legend in the Atlantic (frivolis narracionibus rejectis), Chet Van Duzer points out that the richly decorated map contains a number of fantastic illustrations, and the legends, many of which come from the travel narrative of Niccole dea€™ Conti (c.1395-1469), do not shy away from fantastic subjects.
In the eastern Indian Ocean there is an imposing creature with a humanoid head and upper body, but with large horns and ears and wing-like red membranes joining its outstretched arms to its torso, and a fish-like tail.
Turning first to Europe for a consideration of the details of the map, it will be noted that the contour of this continent is drawn with a nearer approach to accuracy than is true of the other continents, our cartographera€™s greatest errors appearing in the regions which were beyond those recorded by Ptolemy and the portolan chartmakers. The only mountains indicated in Europe are the Alps, which are made to sweep in a somewhat irregular curve around the north of Italy and the head of the Adriatic. In the northern part of Europe we find sketched a polar bear Forma ursorum alborum, and an ermine or sable, animals whose valuable pelts were obtained by the Hansa of Novgorod and sold by them in Bruges to the Italians.
Many regional names appear and many cities are made prominent in each of the continents through the sketch of a building, which building sometimes is a castle, sometimes is a church or cathedral, sometimes is a monastery. England, Scotland, and Ireland are represented as on the portolan charts of the period, over each of which flies a pennant. In France appear the names Gascona, Lengadoc, Normania, Baiona, Bordeaux, Tolosa, Nar-bona, Montpellier, Arguesmortes, Avenio, Massillia, Lion, Dijon, Bourges, Renes, and a few undecipherable names.
In Italy we find Italia, Masca, Calabria, Si-cilia, Sardinia, Corsica, Niza, and Venezia, which last our author has made especially prominent, while Genoa itself has been omitted altogether. In central and eastern Europe we find Bavaria, Boemia, Prutenia, Bruges, Dancic, Famosura [Frankenburg?], Poana, Praja, Ratisbon, Inbrunch, Vienna, Pruna, Potavia, Ungaria with Juanin (Raab), Burgaria, Polonia, Carcovia, Rossia, and near this last the classic names Sormatia prima and S. We also find the region Zichia designated on the north and northwest slope of the Caucasus, and, on the Black Sea, Savastopoli, Kaffa, Pidea, Flordelis, Turlo and Moncastro. On the Hellenic-Slavic peninsula we find the names Sclavonia and Albania, which had but recently withstood an attack of the Turks; here also are Macedonia, Grecia and Morea.
But it is perhaps in respect to the islands of the southeast that the map is of greatest interest. It is not easy to determine the significance of a gulf that extends far into the east coast of Asia north of Borneo and Java. The name Sine, or Sina, which was never used in the middle ages, and which in all probability the Genoese map-maker took from Ptolemy, suggests that the gulf is likewise from Ptolemy, and in order to find space for the new discovery it has been placed farther north. The northeast coast of Asia is in part determined by the form of the map, and in part is arbitrarily drawn, as are also the numerous islands, not one of which we are able to identify. The Genoese map abandons the northeastern quarter of Asia to the apocalyptic peoples: surrounded by impassible mountains and in the north and east by the ocean is a large territory in which are placed trees and fortresses. In addition to the usual medieval depiction of the mythical Gog and Magog the Genoese map also contains a large number of drawings of zoological interest.
The main African interest lies in the fact that, as a departure from Ptolemya€™s conception, the Indian Ocean, as is also shown on the Vesconte, Bianco, the Catalan-Estense, Leardo and Fra Mauroa€™s maps (#228, #241, #246, #242, and #249), is not landlocked, and, significantly, the southern extremity of Africa does not run away eastwards, as on the Catalan-Estense map.
The southern coast of the continent, from Arabia and the Persian Gulf to Further India, exhibits the Ptolemaic influence in particular, though our Genoese gives evidence of possessing a good knowledge of some of the most recent reports of travelers. The peninsula Guzerat is better drawn than by Ptolemy, and the Bay of Cambay appears as a deep inlet of the ocean into which a broad rivera€”perhaps the Mahia€”empties. In the interior of Ceylon a lake appears which may owe its origin to a statement made by Pliny or maybe an attempt to represent some one or more of the numerous artificial reservoirs or tanks for which the island is famous.
In their outlines there is a certain similarity between the islands Ceylon and Sumatra as represented by our Genoese mapmaker and the same islands as they appear on the maps of Ptolemy. The name Sumatra, which our cosmographer, together with Conti, considers to be the native name, seems first to have become a more or less familiar one in Europe in the 14th century. The long southern coast which, according to Ptolemy, makes of the Indian Ocean an enclosed sea, and which in part appears in the Idrisi and the Sanudo maps (#219, Book II, #228), has been omitted here, and the great gulf of Ptolemy on the east of the peninsula becomes in the Genoese map an open sea, corresponding to the account of Conti and other travelers, which sea had been found difficult of navigation because of continually unfavorable wind. Concerning the two large islands lying off the east coast of Asia, a legend gives the following information: These islands are called Java, of which the greater in circumference is three, and the other two thousand miles.
Marvelous beings are represented in parts of the Indian Ocean, such as an animal with the body of a fish and the head of a woman, that is, a siren; also a fish with a humanlike head and large fins with sharp spikes thereon. Of particular importance are the other legends in the Indian Ocean apparently derived from Conti.
We find on other world maps similar information concerning the construction of ships which sailed the Indian Ocean, as well as information concerning trade routes, such as the Catalan Atlas of 1375 (#235). Ibn Batuta also describes them minutely, making mention of ships that could carry a thousand mena€”six hundred seamen and four hundred soldiers. A river taking its rise on the east side of this mountain quadrangle, and emptying through two mouths into the Indian Ocean, cannot be identified, as the chart here contains numerous errors. It is of special interest that in a region so significant by reason of its physical features, where the Pamir Highlands, the Hindu Kush, the Himalaya and the Quen Lun unite, our cosmographer represents a second Iron gate where Alexander imprisoned the Tartars, or a wall with a strong gateway. In the interior of Southeast Asia there is a large lake with the legend: The waters of this lake are very pleasant and sweet for drinking. Marco Polo relates a similar story, but adds, as does Conti, the simple facts that he himself observed, that is, that diamonds are obtained in India through mining and through the washing and the sifting of the sands. No rivers are represented by the Genoese cosmographer in Northeast Asia, but we find twice inscribed the legend Inaccessible mountains. On their appearance, the Mongols were thought to be the descendants of the Ten Tribes who had departed from the Mosaic law; and even in the Mohammedan world their coming was regarded as a sign of the approaching end of the world.
As a characteristic representation of the animal world, we find sketched in Southeast Asia a snake with a human head. The geographical nomenclature in the interior of Asia is very numerous, including the names of cities, countries and topographical features.
The cities represented on the frontier of Asia Minor are probably Angora, Burssa and Philadelphia. In Arabia Arabia Deserta is distinguished from Arabia Felix, and the extreme southeast part of the peninsula, that is, Oman, is called Fenicea et Sabba, suggesting that the Phoenicians once occupied the basin of the Persian Gulf. On the east side of the Caspian Sea, in Turkestan, there are only two cities represented, Testango and Organzin.
Conti, as before stated, divided India into three parts, but the Genoese cartographer, following the ancients, refers to two only, representing therein numerous cities and legends, most of which apparently he has taken from Conti. Of the several regions only Maabar is especially designated in a legend reading: This province is called Mahabaria. Among the cities, Cambay is especially distinguished, which at that time was the most important commercial city of India, and which the Genoese cartographer calls combayta, making use of the Spanish term instead of the Italian Camcaia or the Latin Combahita. West of the Ganges delta, on a mountain, lies the large city Bizungalia, which Conti called Bizenegalia, and which seems to have remained a city of importance well into the 16th century.
The land north of the Ava River (Irawadi) as far as a great parallel mountain range, including apparently the entire Irawadi region, the Genoese cosmographer calls Macina, inscribing the legend: This province of Macina produces elephants. Turning to the continent of Africa, we find its Mediterranean coast, as on the portolan charts, well represented; likewise the Atlantic coast as far as Cape Bojador, which had recently been reached by the Portuguese. On the west coast, in about the position where one should look for the Gulf of Guinea, a gulf having one large and two small islands extends into the mainland, as is represented by Sanudo, Leardo and Fra Mauro. In about the latitude of this gulf on the west coast we also find one indicated on the east coast which appears to be the Bay of Zanzibar. In the representation of mountains of Africa we find the Atlas range, which stretches along the north coast eastward to the Great Syrtus, a second range west of Egypt, stretching in a southerly direction. The hydrography of Africa is likewise Ptolemaic, especially that which pertains to the Nile. A monastery, or a city, with numerous towers over which a cross is drawn, is located in the lake and bears the name Maria of Nazareth. That the Christian Abyssinians made use of the elephant in war during the middle ages, Marco Polo relates, who, in his travels, had gathered considerable information concerning that region of Africa. On the Catalan world map of 1375 (#235) a war elephant is also represented in Nubia, and the same picture appears again in India with the addition of a driver. Not only does there appear to be some confusion relative to the representation of the Nile River, but the hydrography of other parts of Africa is very confusing.
The reference to the character of the land in Africa and its different products is very full, attention being drawn particularly to the animals.
The extreme southeastern part of Africa has the following legend: In this region certain ones have depicted the paradise of delights.
A sea monster illustrating a passage from Bracciolini's Facetiaea€”the ultimate source of the demon-like sea monster on the Genoese world map of 1457a€”in Sebastian Branta€™s 1501 edition of Aesopa€™s Fables. Does the Genoese World Map represent an intermediate step between a heterogeneous medieval conception of space and a more modern homogeneous one? He shows a critical approach in dealing with his sources, backing up his decisions or listing information, which is a very innovative feature. As shown above, social customs and spatial perceptions are connected, and the mapmakera€™s intent to provide a near-natural depiction of the world might be related to the Christian faith.62 It is problematic to presume a homogenous conception of space is operative in the later Middle Ages or the Early Modern period, just because a mapmaker painted a mappa mundi using coastlines drawn from portolan charts, since geography is but one dimension of a mapa€™s content. These continuities could perhaps explain why, as Evelyn Edson and Emilie Savage-Smith write, [the medieval cosmological modela€™s] a€?overthrow in the 17th century caused a profound spiritual and psychological disorientation from which we have yet to recover.a€?63 Studying conceptions of space in mappae mundi reveals how these conceptions change over time.
GOFAR Services, LLC - Appliance Repair Houston, TX - Chapter 3DIAGNOSIS AND REPAIR BASICS 3-1(a) "GREEN" PLUGSDON'T use them on refrigerators. Paul Lunde, in his article a€?Pillars of Hercules, Sea of Darknessa€?, writes that for the Latin Middle Ages, the Atlantic was Mare Tenebrosum; for the Arabs, Bahr al-Zulamat. This name - and its analogue, a€?The Dark Sea,a€? Bahr al-Muzlim - sufficiently indicates medieval mana€™s fear and ignorance of the Atlantic Ocean. The Arabs used other names also, such as the scholarly Uqiyanus, directly transliterated from the Greek word okeanos, and even, in later sources from the western Islamic world, Bahr al-Atlasi [The Sea of the Atlas Mountains] - an exact rendering of the word Atlantic. The most frequent Arabic name for the Atlantic was al-Bahr al-Muhit, the Circumambient, or All-Encompassing, Ocean. The ancient belief that nothing lay beyond the Pillars of Hercules became a tremendous psychological barrier. It is a generally accepted opinion that this sea - the Atlantic - is the source of all the other seas. The Historical Annals, which presumably gave a much more detailed account of this and other voyages, is lost. The voyages of the mugharrirun and Khashkhash were private undertakings, apparently motivated by curiosity and bravado. We know little for sure about how he supported himself during such extensive travels within and beyond the lands of Islam.
The information we have gathered here is the fruit of long years of research and painful efforts of our voyages and journeys across the East and the West, and of the various nations that lie beyond the regions of Islam. The geographical sections, which are among the most interesting to modern readers, are either accounts of his own very far-flung travels or, where there are gaps in his personal experience, accounts gleaned from sources he considered reliable. Al-Jahiz claims that the Indus, the river of Sind, comes from the Nile and adduces the presence of crocodiles in the Indus as proof. Al-Masa€™udi claims he visited China, yet he actually depended very much on previous accounts to write his section on China and what he learned from contemporaries like Abu Zayd. Al-Masa€™udi supplies a lot of theoretical information about world geography in Meadows of Gold and Mines of Gems, which derives from earlier Greek works that he studied in Baghdad and Damascus. This concept of sea division is similar to the Chinese division of five great seas in Zhou Qufeia€™s Land beyond the Passes examined in Hyunhee Parka€™s Mapping the Chinese and Islamic Worlds, although the actual divisions and standards differ from each other.
In the Sea of Rum [the Mediterranean] near the island of Iqritish [Crete], planks of ships of Indian teak, which were perforated and stitched together with fibers of the coconut tree, were found.
This discovery near Crete of the planks of a boat from the Indian Ocean surprised geographers of the 10th century, who correctly knew that the Indian Ocean was not linked to the Mediterranean. Ahmad Shboul notes that al-Masa€™udi is distinguished above his contemporaries for the extent of his interest in and coverage of the non-Islamic lands and peoples of his day. His normal inquiries of travelers and extensive reading of previous writers were supplemented in the case of India with his personal experiences in the western part of the subcontinent. He described previous rulers in China, underlined the importance of the revolt by Huang Chao in the late Tang dynasty, and mentioned, though less detailed than for India, Chinese beliefs.
Al-Masa€™udi was also very well informed about Byzantine affairs, even internal political events and the unfolding of palace coups. One example of Al-Masa€™udia€™s influence on Muslim knowledge of the Byzantine world is that we can trace the use of the name Istanbul (in place of Constantinople) to his writings of the year 947, centuries before the eventual Ottoman use of this term.
Al-Masa€?udi also made great efforts to find out as much as possible about remote areas of the world.
There is a certain amount about Africa, but there he is more concerned with the geography and natural history, such as exports of panther skins, the habits of the rhinoceros and the course of the Nile, than he is with the customs of the people. More surprising is the lack of information on North Africa and Spain, which at that time was Muslim. In general his surviving works reveal an intensely curious mind, a universalist eagerly acquiring as extensive a background of the entire world as possible. Theories of pre-Columbus Arab arrival to the Americas state that medieval Arab explorers (from Spain and Africa) may have reached the Americas (and possibly made contact with the indigenous peoples of the Americas) at some point before Christopher Columbusa€™ first voyage to the Americas in 1492. Numerous evidence suggests that Arabs from Spain and West Africa arrived to the Americas at least five centuries before Columbus. In al-Masa€™udia€™s map of the world, there is a large area in the ocean, southwest of Africa, which he referred to as Ard Majhoola [Arabic for a€?the unknown territorya€?]. There are some scholars such as Professor Ivan Van Sertima and Shaykh Abdallah Hakim Quick, and articles in various Muslim publications beginning in 1996, who assert the pre-Columbian presence of Muslim Africans in the Americas. It is one thing to read about towering figures in the ancient Muslim world like Al-Idrisi (#219), Al-Biruni (#214.3), Al-Masa€™udi and many, many others whose contributions laid the foundations of the modern sciences of history, geography, cartography, and sea navigation. To read about the existence of West Africa Muslim scholars and monarchs like Mansa Musa and Abubakari II, is titillating.
These references and more all point to what the non-expert activist dismissed as a€?wish-fulfillmenta€?. The list of distinguished Non-Muslim African American scholars who have written on the subject is long, stemming from as far back as the 1920s. Professor Ivan Van Sertima is an internationally acclaimed historian, linguist, and anthropologist. These scholarly, ground-breaking works, focusing upon African Muslim (as opposed to European Viking) pre-Columbia exploration of North America, include those written by what is believed to be the first Western author to write on the subject, Harvard Professor Leo Weiner (Africa and the Discovery of America, 1920-22). These works compliment references in the writings of Christopher Columbus, Balboa, and other European explorers, to those very same Muslim African explorers (specifically The Mandinka a€“the people of Kunta Kinte, ancestor of Alex Haley, author of Roots, and The Autobiography of Malcolm X) who were already present in the Caribbean and North America, before the bearers of the Cross arrived (e.g. Lunde, Paul, Caroline Stone, Kegan Paul, Masa€™udi, The Meadows of Gold, The Abbasids, translation, London and New York, 1989. 1906: Availability of panchromatic black and white film and therefore high quality color separation color photography.
G+ #Read of the Day: The Daguerreotype - The daguerreotype, an early form of photograph, was invented by Louis Daguerre in the early 19th c. The first photograph (1826) - Joseph Niepce, a French inventor and pioneer in photography, is generally credited with producing the first photograph. Easy Peasy Fact:Following Niepcea€™s experiments, in 1829 Louis Daguerre stepped up to make some improvements on a novel idea.
It has been great to see the attendance high and keeping high, even over the Easter weekend, and also to see different boats on each occasion, some of whom are new to LTSC Meets.
Bucklers Hard was another good gathering, although as far as I was concerned not entirely incident free.
I naturally decided to keep somewhat to starboard going in to leave plenty of room for the turn to port, but somewhat over-did it.
Tuska€™s resident professional skipper later told me that this is the fourth time something similar has happened to them in recent times whilst berthed and involving an insurance claim! Chichester two weeks later was a much less stressful and a more pastoral affair for Selene and myself.
I did not make the Poole Meet, Selene being out of the water to have her annual anti-foul, sail-drive service, and scrub up. The recent Open Day, and otherwise, seem to have provided us with a very good new intake of members specifically interested in sailing on yachts rather than dinghies, and in a couple of instances who own nice cruising yachts.
One thing that does concern me is finding ways to get those who do not own boats sailing with those of us who do, and thus into the swing of things.
It is not so bad for those who are free to sail on Wednesdays and can Meander, and this does provide some sort of a way in for new members. One thing we could do, although not because of all the other meets until the autumn, would be to restart the Saturday Saunterers in something like its original form. So we should perhaps try again in the autumn, but with proper pre-announced destinations and the draw of a decent lunch.
A closely related matter is that several of those who have joined recently have sailing experience but some time ago, or on dinghies rather than yachts, and have said things like their a€?knots are a bit rustya€? (hint - try not using wire rope?) At least one took the very sensible step of taking an RYA Competent Crew course before actually coming along to join the club. Something we could do, which would also get people meeting each other, is to book the pontoon one Saturday, get two or three yachts alongside, and so some revision of basics like knots, how to make up lines on a cleat, springing off, etc. Keith Willis, our Rear Commodore Sailing, with a couple of other dinghies, is intending to sail an Osprey to Alderney this summer, something that is well documented as a tradition in the club years ago. As everybody knows, Mike Kelly is our admirable Admiral as far as the LTSC Annual Cruise goes, and year after year he works very hard at researching the itinerary, making berth bookings etc etc. He usually goes on the cruise on Graham Swetmana€™s boat, so it was interesting when I caught him during one cruise looking severely at Graham and pointing and I captioned it. I think I converted the photo to B&W with an intent to use it in the then printed a€?Cruising Newslettera€?.
So a very nice weekend.A  The facilities at Chichester are excellent, and the marina is well run with a smooth running system on VHF where you book in when wanting to leave and then get called in groups of 3 or 4 when it is your turn for the lock. Keith Willis, our Rear Commodore Sailing, with a couple of other dinghies, is intending to sail an Osprey to Alderney this summer, something that is well documented as a tradition in the club years ago.A  Duncan Wright is intending to take his RIB across with them, as I believe is Dave Gorringe.
The evidence is purely circumstantial, though the map would have been more encouraging to anyone hoping to circumnavigate Africa, and Crinoa€™s thesis has had no other advocates.
Oddly, there is no city view of Genoa [Janua], while Venice is represented by an impressive set of buildings.
Much scholarly ink has been spilled over the meaning of this caption, particularly cum Marino. It therefore indicates the longitude of the habitable world as about twice that of the latitude.
Hugh of Saint Victor had described the world as being the shape of Noaha€™s Ark, and Ranulf Higden world maps were oval (#232). It is interesting that the maker of the Genoese map mentions peculiar customs (cannibalism, people who have no names) but no a€?monstrous races,a€? that is, people with aberrant physical characteristics, other than the pygmies. Gog and Magog are enclosed in northeast Asia, Noaha€™s Ark rests on a mountain range in Armenia, and the Red Sea is red, though there is no text about the passage of the Israelites through its waters. There are four prominent sea monsters in the Indian Ocean, which ocean thus remains a venue for exotic wonders. The legend says that the creature sprang out of the water and attacked some cows pasturing on the shore, and then was captured and mounted and exhibited in Venice and elsewhere. By reason of the limited space, the geographical details inserted in this section of the map are not numerous; indeed, of no part of the map can it be said that the author has crowded it with details. The Rhone, the Rhine, the Po and the Danubea€”the latter with an extensive deltaa€”have been inscribed in a manner which leaves no doubt as to their identity, while into the Black Sea, which with the Sea of Azov is well drawn, flow the rivers Don and Dnieper, and into the Caspian Sea flows the Volga, though no names are affixed.
Here we also find the representation of a ruler, Lordo Rex with genuine Mongol features, the chief of the Golden Horde. To the south of Ireland, in the ocean, we find the following legend: Concerning Ireland two [stories] are told. The names of nine cities in addition are given in northern Italy: Florentia, Ravenna, Ancerra, Borletta, Bor[i], Rana, Galta, and Napoli, with one illegible.
After the Alexandrian, the second main authority for the eastern portion is Nicolo Conti, the Venetian traveler, who reached the East Indian islands and perhaps southern China, returned to Italy in 1439 and whose narrative was written down by Poggio Bracciolini shortly after 1447.
In the extreme east are two large islands, Java major and Java minor, and to the southeast two smaller islands Sanday et Bandam.
In this enormous prison, labeled Scythia ultra Ymaum montem [Scythia beyond Mount Ymaus], is the word MAGOG in large letters (perhaps in Ezekiela€™s sense as a country?). The remarkably strong ebb and flow of the waters in the Persian Gulf at the mouth of the Euphrates and Tigris rivers, observed by Conti, is thought by the Genoese cartographer worthy of mention: Sinus persicus in quo mare fluit et refluit velut oceanus [The Persian Gulf, in which the sea ebbs and flows as in the ocean]. This section of the coast could not well remain unknown to travelers coming from the mouth of the Indus River. The legend on the Genoese map relates in part to the Chinese junks, in part to the trade with India, which in the 15th century was in the hands of the Arabians, from whom the Portuguese seized it. Near the Persian Gulf in Arabia a mountain is represented, out of which flows a river, emptying north of Mecca, which doubtless is the Betius of Ptolemy.
This is doubtless one of the passes lying somewhat to the west, where Scythia on the north joins with the highlands of Iran, and is probably the Khyber. This lake, mentioned in the fabulous stories concerning India in the middle ages, is, again, derived from Conti. In the extreme northwest, in genuine medieval fashion, a leopard and a griffin have been sketched.
In this part of Asia the cosmographer places the land of Magog, whence Jews, Mohammedans, and also Christians of the middle ages, expected the coming of the destructive races at the last day. In Armenia appears Azerum, and to the southeast of this, in an incorrect position, Sauasto. In the interior, Jerusalem, Damascus, placed far to the north; Antioch and, less accurately placed, Tiberias. Among the cities Media Arabie appears most conspicuous, and the tower decorated with a flag, and lying on the coast, is undoubtedly Dschidda, Contia€™s Zidem. In the interior are Tauria, a center of trade with remote Asia and India; and Ragis, the ancient Rhagas, a residence of Mohammedan princes, and, since the destruction by the Mongolians, a vast ruin, out of which in part the neighboring Teheran is built. Testango, which Pizigani calls Trestago, is Tysch-kandy on the Mertwyi-Kultuk Bay, whence the commercial highway led from the Caspian Sea over the Ust-Urt plateau to Organzin, the ancient capital city Chowaresmiens on the Darjalyk.
By this we are to understand Coromandel, lying on the east coast, since it appears evident the legend refers to Meliapur. Meliapur is distinguished by a Christian church with a cross and the legend, Here lies the body of the apostle Saint Thomas.
The Genoese cartographer appears to have known the trend of the coast even to Cape Verde, although his representation of the coast southward of Cape Bojador is far from correct in its details. These last-named cartographers call this gulf Sinus Aethiopicus, while the Genoese cartographer, the name being repeated many times, designates the mainland as Ethiopia, and his legend here reads: Contrary to the tradition of Ptolemy, this is a gulf, but Pomponius speaks of it with its islands. Before this bay, that is, in the open waters of the Indian Ocean, is represented a fish with a swinea€™s head. In the extreme south of the continent the Mountains of the Moon are represented as snow-covered, with the following explanatory legend: These are the Mountains of the Moon, which, in the Egyptian language, are called Gebelcan, in which mountains the river Nile rises, and from which, in the summer-time, when the snows melt, a very large stream flows.
It was the Abyssinian Christians whom the cosmographers, at the close of the 14th century, had to thank for information concerning their country. Marco Polo ascribes the use of war elephants to the inhabitants of Zanzibar, while Masa€™udi expressly states that their land was rich in elephants, which, however, were neither tamed, nor were they used in any manner. A river empties in the Syrtus west of Masrata, which comes from a lake in the neighborhood of Wadam, and which is called by Idrisi Palmenoase, a river five daysa€™ journey south of the Great Syrtus. In addition to the elephant and the crocodile, a camel is represented in the southwest, and near it a mythical animal, which may be a dragon or a basilisk, and which, according to tradition, inhabited Africa in antiquity and in the middle ages. For instance, the name Ethiopia appears six times, and in addition, in Western Europe, Ethiopia interior, and in the east, Ethiopia Egypti. To tackle this question, it is necessary to hypothesize on the mapmakera€™s intentions and study the way he handles the space on his map. Just as important are the various dimensions of meaning on the Genoese World Map relating to faith and social life. Today, in character with the preferences of our own culture, we are persuaded to live our everyday life in a homogeneous, absolute space, neatly separated from time, notwithstanding that Albert Einstein disproved this notion.
Compare, for instance, this Catalan-Estense map (#246), the Walsperger world map (#245) and this Genoese world map, all of approximately the same date, ca.
Both phrases meant a€?The Sea of Darkness,a€? and anyone who has looked west from the northern coast of Portugal and seen the heavy cloudbanks lying across the horizon will admit the name is well-suited to the Atlantic.
Writing almost 1400 years after Aristotle, and perfectly aware that the earth is spherical, al-Masa€™udi could still compare it to an egg floating in water. They tell marvelous stories of it, which we have related in our work entitled The Historical Annals, where we speak of what was seen there by men who entered it at the risk of their lives and from which some have returned safe and sound.
If he went north, he may well have plundered the coasts of Portugal, France or even England. The author of this work compares himself to a man, who having found pearls of all kinds and colours and gathers them together into a necklace of and makes them into an ornament that its possessor guards with great care.
I do not know where he could have found such an argument, but he puts the theory forward un his book, Of the Great Cities and Marvels of the Earth. The eighty-five sources that he lists at the beginning of his book include Ibn Khurradadhbiha€™s Book of Routes and Realms. It begins with traditional Greek theories about the shape of the earth and the division of the lands and seas. Whatever form it took, systemized information about sea divisions was crucial to geographers who sought to understand the shape of the world, and they were able to receive information about the seas from those who actually sailed in the vast ocean to reach their destinations. They were of ships that had been wrecked and tossed about by the waves from the waters of the seas.
This could only explain how the individual planks flowed into the Mediterranean, al-Masa€™udi concludes. Other authors, even Christians writing in Arabic in the Caliphate, had less to say about the Byzantine Empire than al-Masa€™udi. He demonstrates a deep understanding of historical change, tracing current conditions to the unfolding of events over generations and centuries.
Again, while he may have read such earlier Arabic authors as Ibn Khurradad, Ibn al-Faqih, Ibn Rusta and Ibn Fadlan, al-Masa€™udi presented most of his material based on his personal observations and contacts made while travelling. He recorded the effect of westward migration upon the Byzantines, especially the invading Bulgars.
This was clearly not easy, but he managed to glean a certain amount about the Slavs, for example, small numbers of whom traded regularly in Baghdad, as well as the other peoples of Central and Eastern Europe.
This is slightly surprising, since the large number of African slaves in Baghdad would have made gathering information relatively simple. He does say a little about Galicia, but clearly al-Andalus did not interest Baghdad as much as Baghdad interested al-Andalus. The geographical range of his material and the reach of his ever inquiring spirit is truly impressive. In any case, each of my works contains information omitted in the book that preceded it, information which could not be ignored and knowledge of which is of the greatest importance and a genuine need.
Proponents of these theories use as evidence, reports of expeditions and voyages conducted by Arab navigators and adventurers who allegedly reached the Americas from the late ninth century onwards. Arab sailors in the 10th century sailed westward from the Spanish port of Delba [Palos] into the Ocean of Darkness and Fog.
The oral traditions, scholarly writings, and academic research of experts ranging from centuries ago in the ancient world, to the present are offered as an argument. On the contrary, ancient Arabic language maps, Native American tribes with African names and words clearly embedded in their languages, statues, diaries, artifacts, etc. They include not only Muslim African Americans like Clyde Ahmad Winters (who wrote a series of brilliant articles in the magazine Al-Ittihad in the late 1970s, including a€?Islam in Early North and South Americaa€?, and a€?The Influence of Mande Languages on Americaa€?,) and Shaykh Abdallah Hakim Quick (who is a widely respected and accomplished historian with a doctorate in West African studies, and author of Deeper Roots), but also scholars from the African continent - Dr. Weiner heads a list of historians and social scientists who were neither African nor African Americans (including Basil Davidson, Robert Silverburg, Cyrus Gordon (Before Columbus, 1971), Legrand H.
Talbot was active from the mid-1830s, and sits alongside Louis Daguerre as one of the fathers of the medium. Niepcea€™s photograph shows a view from the Window at Le Gras, and it only took eight hours of exposure time!The history of photography has roots in remote antiquity with the discovery of the principle of the camera obscura and the observation that some substances are visibly altered by exposure to light. Again employing the use of solvents and metal plates as a canvas, Daguerre utilized a combination of silver and iodine to make a surface more sensitive to light, thereby taking less time to develop. I have not been that far up Southampton Water before, but you cannot get lost - carry on until you have just passed the big silver dome that houses the incinerator and the view ahead is full of cranes, containers, and container ships, and you have reached Marchwood YC whose pontoons will be on your left.
The food was good and they had, perhaps appropriately for the 1950s architecture, a beer on tap that seemed to be something that has disappeared from the pubs down here. We brought up temporarily on the C pontoon hammerhead whilst Peter Bennett went ashore to get a berth allocation from the HM - they do not operate on VHF and we could get no signal on our mobile phones. All was OK as I started in, taking account of the cross-tide, but just as I had fully turned into the fairway there was a sudden very heavy gust.
Mike Knowles has been working valiantly on lists of those who want to find yachts to sail on, and of skippers willing to take new crew.
However quite a few of the newer people are younger and work, so cannot sail and make their initial contact with skippers on a Wednesday. In recent years it declined to a very pale imitation of the Meanderers, with a meeting in the Solent Room one Saturday every month. Ideally I think it should be run by a newer member and one of those who are working mid-week since this would provide some a€?creative tensiona€? with the Meanderers.


And if there were sufficient interest we could have a yacht or two doing a€?trips round the baya€? meantime to get crew introduced to skippers, etc.
This for those of a historical disposition later got renamed TellTales whilst remaining still purely a Cruising Newsletter under that title, until eventually we, the cruisers, agreed to let the rest of the club also put other stuff in it because the general LTSC Newsletter a€?Mainsheeta€? had become essentially defunct. Selene is due to go back in the water tomorrow, sans radar pole, after being anti-fouled etc. I have not been that far up Southampton Water before, but you cannot get lost - carry on until you have just passed the big silver dome that houses the incinerator and the view ahead is full of cranes, containers, and container ships, and you have reached Marchwood YC whose pontoons will be on your left.A  The very hospitable club is housed in what is left of the old military port with a classic taste of MoD guard-house architecture. So what about some yachts going across with them - for one thing this could provide some berths for the evening for the dinghy guys, for another would be much in the a€?one-cluba€? spirit, and we could probably have quite a good evening, either in Braye or up the hill in St Anne, once we are there. However, the map is not well preserved, a fact due in part to careless handling, in part to its peculiar mounting which evidently is very old. The map was made not for practical use but for display, probably in the library of the Spinola family. It has been read to refer to Marino Sanudoa€™s map, to the knowledge of sailors (though ungrammatically), and to Marinos of Tyre.
It is, however, but mere conjecture to assert that our draughtsman had a Marinus map before him while working out his sketch, though it conforms to the geographical notion of that ancient cartographer. A standard way of describing the earth, from Bede to the Catalan Atlas (#235), was to compare it to an egg. But since this is a description of the cosmographers, who make no mention of it, it is omitted from this narration.a€? Who are the cosmographers, who also appeared in the caption cited above but in a more negative context? Angelo Cattaneo has identified the source of this legend as Chapter 18 of Pero Tafura€™s Andancas e viajes de Pero Tafur por diversas partes del mundo avidos, written c. Between the Dniester, at that time the western boundary of the Mongol empire, and the Dnieper is the city Lordo, a name that often appears in references to treaty relations established between the Mongols and the people of the Occident. Here we also find Lisbona, Sibilla, Taragona, Barcelona, Saragosa, and a few other names which are illegible. From the names given which so frequently appear in the history of the period that of Constantinople is omitted. All these are taken from the Conti narrative: Java major is thought to be Borneo, and Java minor the island now known by that name.
West of the Golden Chersonese is an animal with the tail of a fish, a humanlike head and large horns and ears, with outstretched arms so attached to the body as to make them serviceable in flying or swimming. Heinrich Wuttke (Karten der seefahrenden Volker) provides a transcription of the captions in the margins and in the figure. In the place of Ptolemya€™s Taprobana two islands are represented, the larger of which, though appearing in outline to be Taprobana, is rather to be taken as a representation of Sumatra, while the smaller bears the name Ceylon. The inhabitants of this Taprobana, which in their language is called Ciamutera, are barbarians, having large ears in which they wear ornaments, and they dress in linen clothes. According to a conjecture of Yule, the name Sumara, which appears in a manuscript of Marco Polo as the name of one of the kingdoms of the island, is only a corruption of Sumatra. The other legend, near the picture of a three-masted ship, reads: The Indian Sea is filled with many islands, rocks and sand-banks. Chinese junks, after an interval of five hundred years, again sailed the Indian Ocean at the end of the 13th century. In addition to the sails, which were made of bamboo matting and attached to four or more masts, these Indian ships had rudders, which were handled by from ten to thirty men. Marco Polo called it the Sea of Ghel, or Ghelan, since Gilan, the city whence silks came, was to the Italians the best-known city on its shores. A mountain range farther eastward, and stretching in a northeast-southwest direction, is the east Iranian mountain range, along which flows the Indus.
Here was a national highway over which, immediately preceding this period, the wild people of central Asia so frequently came into southern Asia.
In these rather remarkable sketches we probably have a reference to the lakes of Udaipur and Dbar on the southern highlands of Mewar, which lakes in fact lie between the Indus and the Ganges. Yule refers to it as one known in the fourth century of the Christian era, in which allusion is made to the hyacinth or jacinth. In Turkestan is the legend King Cambellannas, son of the great Khan, by which legend is probably meant Timur, who reunited the numerous small kingdoms into which, about 1350, Dschagati had fallen. On most of the early maps of the middle ages this land of Gog and Magog is represented, but with the advance of knowledge of Asia the names were given to lands further northward.
Of the cities which are here most distinguished there may be named Sinope, which is adorned with a Genoese banner.
Of the cities of Parthia only the name Yier appears, by which perhaps Dschordschan is meant. Maabar, it should be noted, is not to be confounded with Malabar, or Melibar of Marco Polo.
There was scarcely a Christian traveler from the time of Montecorvino and Marco Polo, returning with information concerning the so-called Thomas Christians, who had failed to visit Meliapur near Madras, since the place of Saint Thomasa€™ burial was a sacred spot not only to Christians but also to Mohammedan pilgrims. The Arnona Civitas of the Genoese cartographer seems to lie in about the position of Contia€™s Cernove, reached by him in a fifteen daysa€™ journey from the mouth of the river. The southern coast of Africa is made to extend in a flattened curve toward the east, which representation is similar to that on the world maps of Sanudo, of Leardo, and of Fra Mauro (#228, #242, #249).
A legend here reads: This animal, called the sea hog, gathers its food with its snout like the land hog. This legend gives us the Arabic name for the Mountains of the Moon as Gebelcan, which is doubtless the same as Gebel Camr. The Blue Nile, however, is represented according to most recent information from Abyssinia; this river, uniting with the Atbara, forms one river which flows out of a large lake, in which an island is represented.
It may be noted that even today the banks of this lake, as well as its islands, are the site of numerous churches and monasteries. There can be no doubt that in the lands on the west side of the Red Sea elephants were captured by the Ptolemies in great numbers, tamed and made use of in war, as Ptolemy Euergetes testifies in the inscription from Adulis that he employed Troglodytic and Ethiopian elephants against those from India. It is difficult to determine whether by this Wadi Schegea or Wadi um el Cheil is to be understood.
One here recalls the description which Idrisi gives of a dragon living on an oasis to the east of Sahara, so enormous in size that it was often mistaken for a mountain.
But since that is a representation of cosmographers who have given no description of it, therefore an account of it is here omitted. What is clear is the mapmakera€™s declaration of intent, his striving for accuracy and a near-natural depiction of the world, all of which make his map look rather modern.
Using these histories, he concentrated his attention on certain regions, emphasizing especially Asia, distinguishing certain locations through different forms of depiction, thereby creating a hierarchical space.
Perhaps in answering certain questions one should not look too hard for historical transitions or changes in cartography, as this tempts one to privilege current representational conventions.
Therefore, although this study focuses on maps that are centuries old, it just might enhance our understanding of the current conflict between our daily experience and our theoretical knowledge of space and time.
It was ill-omened: for Christians, the word tenebrosum suggested evil and evoked the Prince of Darkness.
Two of these, The Green Sea and The Circumambient Ocean, appear in the passage just quoted from the famous 10th century Arab historian and geographer al-Masa€™udi, whose works are full of fascinating geographical information. The Babylonians, and perhaps the Sumerians before them, envisaged the inhabited portion of the world as an upturned boat, a gufa, floating in the sea. The Arab historian Ibn Khaldun, writing 400 years after al-Masa€™udi and almost 1900 years after Aristotle, compared the inhabited portion of the world to a grape floating in a saucer of water.
Thus, a man from Cordoba named Khashkhash got together a number of young men from the same city and they set sail on the ocean in ships they had fitted out. But the story occurs in the context of a discussion of the All-Encompassing Sea, not the coasts of northern Europe, which were relatively well-known to the Arab geographers.
Medieval historians focused their attention on the ruler and his court, and to a certain extent on the a€?urban elite.a€? The doings of private citizens, particularly of the humbler classes, are only incidentally mentioned by Arab historians of the Middle Ages - or indeed, by their Christian counterparts. As both a historian and geographer al-Masa€™udi presents China in the context of the entire world known to him in his Muruj al-dhahab wa-mdadin al-jawhar [Meadows of Gold and Mines of Gems]. It is an excellent work, but since the author never sailed, nor indeed traveled sufficiently to be acquainted with the kingdoms and cities, he did not know that the Indus in Sind has perfectly well-known sources.
Like Ibn Khurradadhbih, he states that China was one of the seven ancient nations that existed before Islam and claims that its people descended from Noah. A general account of the seas based on Greek tradition ends with the Abyssinian Sea, that is, the Indian Ocean. Muslim geographers always began their accounts with the descriptions of seas and islands, and they often updated these discussions based on new information from contemporary sailors of the Indian Ocean.
This [type of ship] exists only in the Abyssinian sea [the Indian Ocean] because all of the ships of the Sea of Rum and the west [emending Arab to gharb] are nailed, while the ships of the Abyssinian sea are not fastened with iron nails, because the sea water dissolves the iron, so the nails become thin and weak in the sea. The seas did not connect to each other until the Suez Canal was constructed in the late 19th century. He also described the geography of many lands beyond the Caliphate, as well as the customs and religious beliefs of many peoples. He perceived the significance of interstate relations and of the interaction of Muslims and Hindus in the various states of the subcontinent. He surveyed the vast areas inhabited by Turkic peoples, commenting on the extensive authority of the Khaqan previously, though no longer in al-Masa€™udia€™s time.
He has some knowledge of other peoples of eastern and western Europe, even far away Britain. Thus I have reviewed every century, together with the events and deeds which have marked it, up until the present.
They returned after a long absence with fabulous treasures from a strange and curious land or unknown territory.
The truth is that there is such a constantly growing, extensive body of cultural, archaeological, anthropological, and linguistic evidence of Western and Northern African Muslim pre-Columbian American (and Caribbean) presence, that those who study the evidence and continue to deny the obvious, may reveal themselves to be rooted in old, racist, European renditions of American history.
Both Idrisi and Masa€™udi wrote of Muslim African trans-Atlantic excursions to the Western world. Sulayman Nyang, the Gambian-born Howard University Professor of African Studies , as well as Kofi Wangara, and others . Porta (1541-1615), a wise Neapolitan, was able to get the image of well-lighted objects through a small hole in one of the faces of a dark chamber; with a convergent lens over the enlarged hole, he noticed that the images got even clearer and sharper.
Though he is most famous for his contributions to photography, he was also an accomplished painter and a developer of the diorama theatre. As far as is known, nobody thought of bringing these two phenomena together to capture camera images in permanent form until around 1800, when Thomas Wedgwood made the first reliably documented although unsuccessful attempt.
What a splendid start to the season, a Meet every fortnight and glorious weather more or less throughout.
I did not like the berth allocated, A10, which was narrow and going to be hard to turn into with the wind, which at that point had freshened to about F5, blowing straight up Selenea€™s stern as we approached up what little fairway there is between A and B.
Selenea€™s T-keel conveys rather little lateral resistance unless she has a bit of way on, and I was slewed and blown onto the protruding anchor platform of a 19 metre LOA Grand Banks MV (ironically called Tusk) berthed on the B pontoon hammer-head. In my case when leaving one sounder display showed minus 0.3 metres for a couple of moments (I have two displays with different offsets!), but we escaped nonetheless.
However he reports the obvious - skippers are conservative creatures, and like taking their established crews! Memories of my time as an RAF cadet marching into various airfields in the 1950s came flooding back, see the picture below. But locked in with only a short free flow period, and 7 miles from the sea, would not be to my taste as a permanent base.
To prevent the crinkling of the parchment, as would appear, it has been mounted on four boards of suitable width and of about half an inch in thickness, which boards have been adjusted to fold. In support of the last idea, it is noteworthy that the map appears to extend 225A° by 87A°, the extent of the habitable world, according to him.
This abandonment of the more common circular form enabled the cartographer to show features that were increasingly squeezed on 15th century mappaemundi.
The main purpose of the analogy seems to have been to describe the various spheres surrounding the earth (egg white, shell), but the idea of an egg shape could have been derived from these works. In the Indian Ocean are shown a mermaid and a fish with a devila€™s head, while on land nearby is a snake with a human head. Prester John is represented behind a wall, protecting him from the future rampages of Gog and Magog. This monster is said to attack the ships of the Indians, usually breaking them immediately, but its crest can get stuck in the ship's wood and as a result the creature, unable to escape, kills itself.
Sara was the capital of the Kipchak, and in the 14th century was a city of great importance, but in 1395 was destroyed by Timur. Though the names Sanday and Bandam have not been satisfactorily explained, the reference in the legend to spices and cloves makes it fairly certain that they are islands of the Moluccas group. If we have here an attempt at a representation of the Gulf of Siam, the city Pauconia is probably Bangkok.
A legend gives the following information: This species of fish, recently [caught?] in Candia, feeds upon the meadows of the shore like cows. A legend near this reads: The island of Ceylon, having a circumference of three thousand miles, is rich in rubies, sapphires, and cata€™s-eyes, and produces cinnamon from trees similar to our willow tree. Marco Polo, the first traveler from the west who seems to have brought definite word from Sumatra, called it Java the Less, under which name, however, according to the Genoese cartographer, we are to understand Java or Borneo. Their ships, therefore, are constructed with many compartments, to the end that if they are broken in any part, the remaining parts may be sufficiently strong to complete the course.
Marco Polo, who, on his homeward journey, sailed in one of them as far as Malabar, gives us a detailed picture of these boats.
The larger vessels also carried small boats, which were used, as Marco Polo states, a€?to lay out the anchors, catch fish, bring supplies aboard, and the like.
Mons Synai, near the northern border of the Red Sea, is represented, on the summit of which is the Convent of St. Aside from the Volga and the Ural, two other rivers are here represented, rising in a range of mountains that extends in an east-west direction.
This river forms through its four outlets a conspicuous delta, and receives from the neighboring mountain range two tributaries. Indeed, from the most ancient times this important highway was the connecting link between northern and southern Asia, and its architectural ruins a€”the fortifications erected by the different peoples at different timesa€”point to its significance.
It was one known to the Byzantines, to the Arabs, and to the Chinese, but it seems to owe its origin to India. King Cambalech, that is, the Great Khan, is represented in a picture as ruling Cathay, and the King of India is represented on horseback with sword in hand. Here the cosmographer seems to rely in the main on Arabic sources, and especially on Idrisi.
On the Persian Gulf lies Ragan, by which Arragan is probably to be understood, whose ruins are found in the vicinity of the present Babahan, with Fars on the Ab Ergum. Destroyed first by Genghis Khan in 1221, and again by Timur, this great Asiatic frontier commercial city in the time of Conti was in ruins.
The tradition that the holy Thomas preached Christianity in India, suffered martyrdom, and was buried in a mountain had its origin in very early times. Conti gives a vivid description of this part of the Ganges River, up which river, as he states, he sailed for the space of three months; and from his description one might conclude that he had passed entirely through Hindustan, and that after he had made the desired commercial observations he turned about to make a long sojourn in Maharatia, perhaps one of the four important cities to which he refers. The southern continental boundary of the Indian Ocean appearing on Ptolemya€™s world maps, reduced to a long and narrow peninsula by Sanudo and Fra Mauro, is still further reduced by the Genoese cartographer.
The name Djihal-alqamar, Mountains of the Moon, according to a conjecture of Kiepert, was derived in Ptolemya€™s time erroneously from Djibal-qomr, Blue Mountains. Meroe, however, does not, as with Ptolemy, lie on a river island, but on a river peninsula.
The large island Dek, or the Holy Daga Island, dedicated to Saint Stephen, is now inhabited by hermit monks, and to it the outside world is not admitted. In Tunis a river is made to empty into the Mediterranean, which is probably the Medscherda, with one branch emptying on the north side of the Gulf of Tunis, and with another into the Gulf of Hammamet. It had the form of a snake in that it crawled on the ground, but had large ears extending forward. Professor Fischer thinks this is to be understood as signifying that the Genoese cosmographer based his information on pre-Christian authors, that is, Pliny and Ptolemy, while omitting his own view concerning the position of the earthly paradise. The mapmaker saw apparently no inconsistency in depicting different times simultaneously or one element in multiple locations, melding time and space seems to be effected unconsciously. In studying cosmological models of the Middle Ages, it would be more constructive to look for continuities that might even expose our modern understanding of homogeneous space as an illusion. This old Sumerian word was used to describe the round-bottomed reed boats used in the marshes of southern Iraq, where they are still known by the same name. We know as much as we do about the efforts of Prince Henry the Navigator to find the sea-route to the Indies because these expeditions were sponsored by the Crown, and the same is true of the four voyages of Columbus.
Thus having been well traveled throughout both the a€?Abbasid empire and India during his lifetime, al-Masa€™udi acquired a variety of sources that he used to compile his encyclopedic historical and geographical masterpiece. In contrast, al-Masa€™udi supplies richer and more detailed description than Ibn khurradadhbih does, providing detailed geographical facts and a genealogy of the imperial family (which is unreliable, however, because it provides names that are difficult to trace in contemporary Chinese sources).
Al-Masa€™udi portrays the Indian Ocean as one mass of water comprising seven connected seas. So people [of the Abyssinian sea] used stitching with fibers instead of the nails, and [the ships are] coated with grease and lime. Yet, as we now know, Abu Zayd and al-Masa€™udia€™s suggested route is unimaginable because small dhow planks could never have floated all the way from the Sea of China to the Pacific Ocean, through the straight of the Bering Sea and into the Arctic Ocean, down Norwegian Sea near Scandinavia, and then through the Strait of Gibraltar at Spain in order to finally enter the Mediterranean Sea.
He conveyed the great diversity of Turkic peoples, including the distinction between sedentary and nomadic Turks. He knows less of West Africa, though he names such contemporary states as Zagawa, Kawkaw and Ghana. Furthermore, there is to be found at the beginning of this book a description of the seas and continents, of lands inhabited and uninhabited, of the lives of foreign kings, their histories and those of all the different peoples. It is a literary prize awarded every two years a€?for a work of excellence in literature and the humanities relating to the cultural heritage of Africa and the African diaspora.a€? Van Sertimaa€™s later compilation, African Presence in Early America, is considered a definitive work on the subject. Schulze mixes chalk, nitric acid, and silver in a flask; notices darkening on side of flask exposed to sunlight.
A daguerreotype, produced on a silver-plated copper sheet, produces a mirror image photograph of the exposed scene. Having seen someone else get into difficulties up there and have to be rescued and turned in by the HMa€™s assistant in his dory, I asked the HM for somewhere else but no joy. Or, to be exact, the pole on Selenea€™s stern holding my radar and other antennae was (the radar is there because the self-tacking jib does not give enough clearance in front of the mast). Other than the streaming hay-fever I was suffering from, the whole weekend was extremely pleasant. I started the Saunterers and then persuaded Sheila Wicks to take over, and it worked well for a while on the basis that it would go to a definite place where we could all get ashore for lunch, one not normally frequented by the Wednesday Meanderers, and that the destination would be announced by e-mail a couple of days in advance once the likely weather was known. Perhaps if we go to Marchwood again I should take one of my trumpets along so we could do a proper colours ceremony?
In certain parts the colors are yet brilliant, though softened with age; in other parts they have almost disappeared, and nothing has contributed more to this destruction than the nibbing of part-on-part. Without an expert and minute palaeographical investigation, it is impossible either to accept or reject the attribution to Toscanelli, but Crino presented a case which requires further examination. What we now know about Marinos is mostly from Ptolemya€™s criticism of him, but the Arab geographer al-Maa€™sudi reported in the 10th century that he had seen Marinusa€™ geographical treatise. Jerusalem does not appear in the center of the map but is considerably to the west of a center located south of the Caspian Sea. Another possibility is that the oval form represents the mandorla, or nimbus, which surrounded Christ in many medieval works of art.
The title of Ptolemya€™s work, as it circulated through Italy in the 15th century, was usually given as Cosmographia rather than Geography, a less familiar Greek term.
As we might expect from a Genoese map, good use has been made of the nautical chart as well. Van Duzer adds that Tafura€™s account derives from Poggio Bracciolinia€™s Facetiae, written between 1438 and 1452, which describes a very similar monster that attacked some women by the seashore, and was killed and exhibited in Ferrara.
Between the Dnieper and the Don the author has made a suggestive reference to the custom of that migratory folk of transporting their houses about with them on wagons drawn by oxen, a custom also attributed to the early Teutons and the Huns. Saratellis, if this is a correct reading of the name, is probably the Saracanco of Balducci Pigolotti.
We may have in this gulf one of the earliest cartographical representations of the Yellow Sea and the Gulf of Petchili.
In this island there is a lake, in the middle of which is a noble city whose inhabitants, given over to astrology, predict all future events.
Conti gives to the island a circumference of about two thousand miles, as does Marco Polo, which is very nearly correct. These, moreover, are supplied with several masts, from three to ten, and having sails made of reeds and palm-leaves joined together, they pursue their courses with great rapidity. When the ship is under sail, she carries these boats slung to her side.a€? Many of the vessels had as many as four decks, and even the smaller ones, fifty or sixty cabins.
Catherine; and we also find here the highlands of Armenia, out of which flow the Euphrates and Tigris, these highlands being especially distinguished by a representation of Noaha€™s Ark. From the mountain range on the northern border of Parthia, a great range stretches diagonally across the entire Asiatic continent, to the gulf indicated on the east, to which gulf reference has been made. Very properly, the name of Alexander is associated with it, since through his founding of Alexandria ad Caucasum the southern region was secured against the attack of the northern barbarians, the Scythians, who, in the language of the middle ages, were called Tartars. They owe their origin in part to artificial dams, and serve the purpose of reservoirs for artificial irrigation.
Northern Asia is properly made to appear as a region covered with pine forests, a representation which is to be found on no other early world map, and which seems to suggest that the Genoese mapmaker was in possession of somewhat detailed information concerning the character of the region. He places Magog north of the mountain range stretching entirely across Asia, Gog south of the same, and on the border range several towers are indicated. In the highlands of Iran appear the names Media, Zilan, Parthia, Aria, Aracosa, Gedrosia, Cormania and Persis. This place, incorrectly located on the coast, is not referred to by Conti, nor is it to be found on any other map. The name Machin seems clearly to be a modification of the Sanskrit Maha Chin, that is, Great China, a name which the Persian and the Arabic writers frequently used for Manzi, the southern part of China. Legends are here inscribed on either side of a broad scroll, wherein the author refers to his work and gives the date of its composition, which legends are almost illegible. This seems to refer to the snow-peaks of the Kilimanjaro and Kenya, as seen from a great distance, which mountains send their waters toward the interior of the continent. Even the irrigation canals, which lead out from the Nile in Nubia and Egypt, are represented by the Genoese cartographer. About the time that the Genoese cartographer produced his map he could well have received excellent information concerning Abyssinia. A similar river, dividing into two branches near its source, empties into the sea in Algeria east and west of Algiers, and a smaller one east of Ceuta.
Medieval cosmographers place this now in East Africa, now in East Asia, but more frequently in the latter. Taking his stated aim for truth seriously would imply that all of these features were part of his truth. Documents, logs and maps were placed in royal archives and were available to the historians of the time, whereas knowledge of the mugharrirun and Khashkhash has come down to us only because of the chance interest of al-Idrisi and al-Masa€™udi. Each of these seas has its own name and features; the seventh of these lying at the easternmost end is the Sea of China. This proves, and God knows better, the connection of the seas, and that the sea near China and the country of Slid [Korea] goes all round the country of the Turks, and reaches the sea of the west [the Mediterranean?] through some straits of the encircling ocean. He noted their independent attitude, the absence of a strong central authority among them, and their paganism. If God gives me life, if He extends my days and grants me the favor of continuing in this world, I will follow this book with another, which will contain information and facts on all kinds of interesting subjects. The alchemist Fabricio, more or less at the same period of time, observed that silver chloride was darkened by the action of light.
Chemistry student Robert Cornelius was so fascinated by the chemical process involved in Daguerrea€™s work that he sought to make some improvements himself. At least I got the mast and the shrouds past before the gust, but the radar pole suffered, see below. An extremely nice meal was had by all on Good Friday in the Chichester Yacht Club, with their hi-tech buzzing and flashing devices to tell you when your individual meal was ready for you to collect. This not only provided a vehicle for those who were not free on Wednesdays, but also for those whose boats were not parked in Lymington. On the question, of main interest here, as to the correspondence between the letter of 1474 and the map of 1457, it is possible, however, to form some opinion. The highly pictorial character of this well-preserved map leads us to think of it as more traditional than it actually is. In the 14th century didactic poem, a€?Il Dittamondoa€? Fazio degli Uberti, described the inhabited world as long and narrow (a€?lungo e strettoa€?) like an almond (mandorla), with no apparent religious significance.
Certainly, neither Ptolemy, Pomponius Mela, nor Pliny had given a location for Paradise, save for fantasies about the Fortunate Islands, and the Genoese mapmaker appears to associate classical with scientific geography. These fantastic creatures join other wonderful but real animals, such as a giraffe, a leopard, a crocodile, two monkeys, and a swordfish. Illustrations of the monster which are very similar to that on the 1457 Genoese map accompany excerpts from the Facetiae which are appended to various 15th and 16th century editions of Aesopa€™s fables.
Such a wagon with driver and oxen, rather crudely sketched, is represented moving eastward, near which appears the legend, Ubi lordo errat. The other [story relates] that certain of their trees bear fruit which, decaying within, produces a worm which, as it subsequently develops, becomes hairy and feathered, and, provided with wings, flies like a bird.
According to Pigolotti, Sara could be reached in a day by water from Astrakhan, Saracanco in eight days by water or by land. Longer legends take material from Conti on the funeral practice of wife burning (a€?if they refuse out of fear, they are forced to do ita€?), the cultivation of pepper, the collection of human heads in Sumatra, the sea-tight compartments of Chinese junks, the practice of tattooing, and the availability of spices and multicolored parrots. Sanday sends saffron, nuts, muscatas, and maces to the Javas, Bandan an abundance of cloves.
Magog (Gog is missing), the Tatars, the Ten Lost Tribes, the Antichrist and the Alexander story are mixed as though they naturally belonged in the same place - as they by then did, at least in the literature and exegesis directed to the literate but not learned. The position of Ceylon was now well known, being here placed to the east of a peninsula that we can recognize as the southern point of India.
In its outlines Further India, UltraIndia (Southeast Asia) is Ptolemaic, a fact which is especially noticeable in the very prominent peninsular character. And these [ships], loaded in particular with spices and other aromatics, sailing rather often to Mecca in Arabia, trade with the Western merchants through an exchange of their goods.
South of the Caspian Sea we find a quadrangle framed by mountains that appears to be Parthia, according to the representation of Ptolemy. The Genoese cosmographer must have had information concerning the numerous towers scattered here and there over this pass. They are remarkable for their natural surroundings, and for the palaces of the rulers of Mewar erected on their banks.
In the extreme north appears the figure of a man casting himself into the sea, whose act is explained in the following legend: It is the custom of these people, as old age comes on, to cast themselves from the steep precipices into the sea. The people Gog appear as a group of dwarfs covered with a shield, who are attacked by two cranes. On the Sea of Marmora is Palolimen and Diascinolo which on English charts is represented as Eskel Bay, a semicircular harbor with a very good anchorage twelve kilometers east of the mouth of Susurulu Tschai. Including in part Indo-China, the name Machin may also include Southeast Asia, for which there is support in certain 15th century references, as there are people of Southeast Asia among whom the custom of tattooing prevails; this being particularly true of the Laos and the Burmese.
One of them seems to read: This sea is called the ocean which, according to cosmographers, stretches out infinitely in every direction, covering the earth except about a fourth part here laid down. It was doubtless through Arabic merchantmen that the Alexandrian geographer derived his information, on a visit to the east coast of Africa. On an island in a lake of Abyssinia there appears to be a floating house, and near it the legend: In this lake there is an island, Tana by name, which contains forests and groves and a great temple of Apollo.
In 1439 Pope Eugenius IV named an apostolic delegate to that region, and sent a letter to Prester John, the ruler of Abyssinia; and we also learn that an Abyssinian ambassador appeared at the Council of Florence in the year 1441. If the Genoese cosmographer, in the well known regions, represents somewhat arbitrarily his watercourses, we can certainly expect to find this in the less known regions. Three human figures are introduced to represent the political and ethnographical situation, one a turbaned Mohammedan ruler of Egypt, with the inscription Dominus; the other a crowned head with black hair, carrying a banner, on which is a cross with the inscription, Presbyter Johannes Rex, denoting the Christian ruler of Abyssinia. The north coast of Africa embraces Mauretania, to which Regnum fesse and, in part, Regnum Trenecen belong. Calata is probably Idrisia€™s Al Cal, near Msila in the highlands of the Schotts, a significant city before the rise of Bougie, the capital city of the kingdom of the Hammaditen. It is probable, however, that they entered sailorsa€™ lore along the Atlantic seaboard and joined the tales of other fabulous islands to the west - the Antilles, Brazil, St.
This complete description of the Indian Oceana€™s seven seas supplements the missing part of the extant manuscript for the original volume of Accounts of China and India in 851. Did shipbuilders in the Mediterranean Sea build ships without using nails, consciously or unconsciously imitating dhows? He was very well informed on Rus trade with the Byzantines and on the competence of the Rus in sailing merchant vessels and warships. A present day analogy would be the use of the phrases a€?I am going Downtowna€? or a€?I am going into the Citya€? by those who live near say New York City, Chicago or London respectively. Without limiting myself to any particular order or method of setting them down, I will include all sorts of useful information and curious tales, just as they spring to mind. Van Sertima appeared before a Congressional Committee to challenge the a€?Columbus mytha€?. It was only two hundred years later that the physicist Charles made the first photographic impression, by projecting the outlines of one of his pupils on a white paper sheet impregnated with silver chloride. It was commercially introduced in 1839, a date generally accepted as the birth year of practical photography.The metal-based daguerreotype process soon had some competition from the paper-based calotype negative and salt print processes invented by Henry Fox Talbot. And in 1839 Cornelius shot a self-portrait daguerrotype that some historians believe was the first modern photograph of a man ever produced.


So unfortunately did Tuska€™s bow and varnished capping rail, and various efforts by the HM in his dory and others who took a line on the dock, pulling in opposite directions, bent a couple of Selenea€™s stanchions and damaged her gel coat for a few centimetres along the toe rail when rubbing against Tuska€™s prow.
On the lay-day, Easter Saturday, Robyn and Peter, with most of the others, walked into Chichester itself, whilst I stayed around the boat and did a few odd jobs, and ate lunch in the very nice marina restaurant. I dona€™t think it is a coincidence that the idea began to decline once Sheila handed it over and the path of least resistance as a copy pure and simple of the Meanderers took over. So unfortunately did Tuska€™s bow and varnished capping rail, and various efforts by the HM in his dory and others who took a line on the dock,A  pulling in opposite directions, bent a couple of Selenea€™s stanchions and damaged her gel coat for a few centimetres along the toe rail when rubbing against Tuska€™s prow. Kimble, there are at least three distinct influences, in addition to the portolan [nautical] chart tradition, that can be detected in these examples: Classical, Christian and Arab. Oversized crowned or turbaned kings, monstrous and simply exotic animals, an elephant bearing an elaborate howdah, and scary sea monsters associate with more scientific signs, such as flags and city symbols. Ptolemya€™s maps, while not exactly oval, were wider from east to west than they were high (north to south).
A partially finished network of rhumb lines appears on the map, and on the right are two scale bars, though they are more a sign of intention than reality.
One such edition is Sebastian Branta€™s Esopi appologi sive mythologi cum quibusdam carminum et fabularum additionibus (Basel: Jacobus de Phortzheim, 1501), in which Bracciolinia€™s text about the monster is cited and accompanied by an illustration of the monster quite similar to that on the 1457 Genoese map. A good picture of a Mongol appears on the eastern shore of the Caspian Sea, and also one west of the Black Sea, being drawn about the time of the destruction of their rule. The reference appears to be to a marine animal, perhaps the dugong, which, resembling a cow and accustomed to graze in the fields along the seashore, was captured in the East and brought to Venice.
In this as well as in other parts of extreme southern Asia the Geonoese cosmographer seems especially to exhibit an acquaintance with the record of the distinguished Italian traveler Nicolo di Conti who referred to Ceylon as Zeilan. Cannibals inhabit a part of this island, who, continually waging war with their neighbors, make a collection of human heads as treasures, and he who has the most heads is the richest. It stretches toward the south, terminating in a prominent Golden Chersonese, a name which the legend suggests: Here gold is found in abundance with jewels and precious stones. In the Gulf of Iskanderun a river empties, flowing out of the northeast, recognizable as the Dschihan, on which lies the city Antioch.
These mountains clearly are the Taurus, Paropamisus and the Emodas of Ptolemy, the continental axis of Asia, that is, the Hindu Kush, the Quen Lun, the Nan Schan, and the other border mountains of eastern central Asia today, which in their spurs reach almost to the Gulf of Petchili.
As in questions relating to the Nile, Ptolemy showed himself to be better informed than were geographers of later date, even to very recent times, so it also appears that his representation of the mountain systems of Asia, though somewhat altered by our author, was remarkably well done in the larger general features. This statement concerning the lakes as represented on our map is supported by the fact that a mountain appears to the southwest, from which a river flows to the south, at the mouth of which lies Cambay. A legend gives the following explanation: These are of the generation of Gog, who do not exceed the height of a cubit, who do not attain the age of nine years, and who are continually molested by cranes. On the same strait, but farther to the southeast, lies a second city, Caila, near which is the legend, Caila, where they use the leaves of trees instead of papyrus. The Genoese cartographer clearly considers Burma a part of Machin, which since the 13th century had belonged to China.
This sea, disturbed by the force of the moon, ebbs and flows around the earth every lunar day, as Albertus says in his Natural History.
In support of the statement that the Genoese cosmographer was well informed concerning Abyssinia may be found the representation of a war elephant carrying a tower filled with armed men.
A third figure, unmistakably a negro, in the southwest, holds a ball (?) in his hand, and is described in the following legend: These are the people who live degenerate lives, among whom there is no distinguishing name, who behold the rising and the setting sun with direful imprecations.
Although his biographer Ahmad Shboul questions the furthest extent sometimes asserted for al-Masa€™udia€™s travels, even his more conservative estimation is impressive: Al-Masa€™udia€™s travels actually occupied most of his life from at least 915 to very near the end.
Lunde and Stone note that al-Masa€™udi in his Tanbih states that the revised edition of Muruj al-dhahab contained 365 chapters. We may never know the story, but we can understand from the passage how Aba Zayd and al-Masa€™udi understood the geography of the world during their time. This work will be called The Reunion of the Assemblies, a collection of facts and stories mixed together, to provide a sequel to my earlier writings and to complement my other works. That evening we had a a€?pontoon partya€?, but on the grass, and Andie and Mike Smith whetted some peoplesa€™ competitive instincts by organising an egg-and-spoon race.
Inscriptions on the map, as well as recently discovered geographical features, however, proclaim the map to be a document of cartographic thinking similar, if not as large and ambitious, to that of Fra Mauro (#249). For a 15th century mapmaker, this form made convenient room for discoveries in the Atlantic and in Asia. The Genoese mapa€™s sea monsters reflect the cartographera€™s interest in exotic wonders, which is everywhere in evidence on the map, and typical of the scientific outlook of the early modern period, which was driven by curiosity and took a great interest in marvels. The Italians were then in close relations with the Golden Horde from Moncastro, Kaffa, Sudak, and Tana as centers, and were, therefore, in a position to know intimately their customs and manner of life. Bandan, moreover, has parrots of three kinds: red ones, those of variegated color with yellow beaks, and white ones the size of hens. That rare animals at the time of the construction of our map were brought to Italy, where they were viewed with astonishment by the natives, certain observations of Benedetto Dei bear witness.
This description of Taprobana appears clearly to have been taken from Conti, and it is very interesting to observe that our cartographer, not in a very successful manner, has attempted to bring the report of Conti into accord with Ptolemy. The Caucasus stretches across the isthmus between the Black and the Caspian seas, and as numerous rivers rising in the Caucasus empty into the former, the mountain range had to be drawn nearer the Caspian Sea in order that there might be sufficient space for the range and the representation of the Iron Gate near Derbent. The Ptolemaic Imaus, which divides Scythia into Hither and Further Scythiaa€”Scithia citra ymaum montem and Scithia ultra ymaum montesa€”is very prominently represented on our map. Herein in particular does the value of the Genoese map appear in a comparison with the larger map by Fra Mauro (#249), although the latter is richer in details. Even today in northeast Asia, there may be found a people among whom suicide is common, the result of a belief that should one depart this life before the feebleness of old age comes on, a life of happiness in the hereafter is secured. Idrisi also represents the people Gog as dwarfs, and our cosmographer identifies them as the pygmies of Pliny, who placed them in the mountains of the north of India, exactly as does the Genoese cosmographer, in a beautiful valley protected from the cold winds, where they are molested only by the attacks of the cranes. On the west coast only the name Altoluogo appears, which name one finds on almost all sea charts. The city Calacia, lying in the interior, seems more difficult to distinguish, which city is referred to by Conti, but is not definitely located. Caila is Contia€™s Cahila on the Gulf of Manaar, Marco Poloa€™s Cail, and Ptolemya€™s Colchi. It appears from this that Albertus Magnus was one of the Genoese cartographera€™s authorities.
You can find them in the Yellow Pages under the following headings: APPLIANCES, HOUSEHOLD, MAJORAPPLIANCES, PARTS AND SUPPLIESREFRIGERATORS, DOMESTICAPPLIANCES, HOUSEHOLD, REPAIR AND SERVICECall a few of them and ask if they are a repair service, or if they sell parts, or both.
His journeys took him to most of the Persian provinces, Armenia, Azerbaijan and other regions of the Caspian Sea; as well as to Arabia, Syria and Egypt.
The photos were turned into lantern slides and projected in registration with the same color filters.
Crone, is that the letter definitely refers to a chart for navigation, while the 1457 map is primarily a world map drawn by a cosmographer. By the end of the century, the circular form was becoming impractical, and once the Americas were added to world maps, it was gone almost completely.
The demon-like monster in particular is evidence of the cartographera€™s research in recent travel literature to find sea monsters for his map.
If this is so, this is the first time that the much sought after spice islands appear clearly on a map. Mention may be made of the peacock which he brought from Alexandria for Cosimo de Medici; also of a chameleon, and, more important than all, of a big serpent with 100 teeth which he seems to have brought to Florence from Beirut (possibly a reference to the crocodile).
This city is distinguished by a strong tower and the legend: This is Derbent, which in their language [means] a gate of iron. It branches in diagonal directions westward of the sources of the Indus, that is, nearly twenty degrees farther westward from the continental axis than it is represented by Ptolemy. In the representation of the Indus, for example, with its five branches, our author follows Ptolemy.
The river Ava, as well as the southern parallel tributary of the Ganges, and the two Chinese rivers, the one flowing to the southeast and the other to the northeast, come from a mountain which is further explained by the legend: In this mountain carbuncles are found.
Two legends are here inscribed, the one relating to the medieval geographical myth concerning the ten lost tribes of Israel, and the other to Antichrist. This identification of Gog with the pygmies of classical antiquity is peculiar to this map. There may have been a Persian maritime city by this name on the coast of Oman, since by reason of favorable winds and gulf currents the two coasts of the Persian Gulf stood in such close relations that again and again in their history Persian rule controlled the Arabic coast, and Arabic rule the Persian coast. For centuries, even into the 16th, Caila was the central point of commerce between China, Further India, and the archipelago of the east and the trade centers of the Mediterranean. Though the geography of India as here laid down presents difficulties, there are difficulties which are equally great along the east coast.
The other legend for which Professor Fischer failed to get an intelligible reading asserts that: Beyond this equinoctial line Ptolemy records an unknown land, but Pomponius, and in addition many others, raising a doubt whether a voyage is possible from this place to India [the Indians], say that many have passed through these parts from India to the Spains, and .
With some degree of certainty we may identify the Wadi Draa, represented as flowing through many lakes and emptying south of Cape Bojador. On the Mediterranean, from east to west, we find Larissa, Alexandria, Senara (in the Medicean atlas, Zunara, and Vesconte also gives Zunara). He also travelled to the Indus Valley, and other parts of India, especially the western coast; and he voyaged more than once to East Africa.
In 1802, Wedgwood reproduced transparent drawings on a surface sensitized by silver nitrate and exposed to light.
Further, the Toscanelli chart presumably depicted the ocean intervening between the west coast of Europe and the a€?beginning of the Easta€™.
Conti describes them as lying on the extreme edge of the known world: beyond them navigation was difficult or impossible owing to contrary winds. The Iron Gate, usually associated with Alexander the Great and the apocalyptic people, Gog and Magog, has an important place on the world maps of the middle ages. In the region at the foot of the mountain between the Indus and the Ganges we find the Indian desert represented. Judging from the rivers that spring there from, and from this legend, we are led to conclude that the mountain-land is eastern Tibet. The one to the east of Inaccessible mountains, designated here as Ymaus mons, reads: From this race, that is, from the tribe of Dan, Antichrist is to be born, who, opening these mountains by magic art, will come to overthrow the worshipers of Christ. The towers referred to above are explained in the following legend: King Prester John built these towers in order that those shut therein might not have access to him. In the account of his voyage Vasco da Gama gives information concerning the city and kingdom of Cael. Whether the rivers emptying still further southward represent the numerous rivers which empty south of Senegal and Cape Verde, it is not possible to determine.
On the portolan charts there is always represented a large bay in the southeast corner of the Great Syrtus, which must have been an important harbor. Nicephore Niepce (1765-1833) had the idea of using as sensitive material the bitumen, which is altered and made insoluble by light, thus keeping the images obtained unaltered.
Long before the first photographs were made, Chinese philosopher Mo Ti and Greek mathematicians Aristotle and Euclid described a pinhole camera in the 5th and 4th centuries BCE.
On the map of 1457, this ocean is split into two, and falls on the eastern and western margins. In the southern sea there is a note: In this sea, they navigate by the southern pole (star), the northern having disappeared.
Doubtless it was the medieval wall stretching from the mountains to the sea near Derbent, closing the road along the Caspian Sea to the peoples of the steppes on the north, that called forth the legend of the Iron Door.
In contrast, the Ganges is represented according to recent information, that is apparently from the record of Conti.
The representations of our cosmographer are here very erroneous, and the errors may perhaps be attributed to Conti and Poggio, since one is led to conclude by a careful study of the Conti narrative that it is not simply the story of a practical merchant traveler, but a story often adorned by the additions of a learned copyist. The other reads: Here dwell the ten lost tribes of the Hebrew race with the half tribe of Benjamin, who, unrestrained by their law and being degenerates, pass an epicurean existence. These towers stretch along the crest of the mountains, as if intended to protect the more highly civilized parts of China from the wild people of north and central Asia.
Farther southward, Antioceta, a fortification on the coast often referred to in the 15th century; also corocho, the ancient Corycus, northeast of the mouth of the Selefke. The tree whose leaves, it is stated, are used for paper is not the paper-mulberry tree, but the fan-palm. It owes its origin as a harbor to a high, rocky headland, perhaps formerly an island, which extends from the southwest to the northeast and continues in a long chain of rocks.
He communicated his experiences to Daguerre (1787-1851) who noticed that a iodide-covered silver plate - thedaguerreotype -, by exposition to iodine fumes, was impressed by the action of light action, and that the almost invisible alteration could be developed with the exposition to mercury fumes.
In the 6th century CE, Byzantine mathematician Anthemius of Tralles used a type of camera obscura in his experimentsIbn al-Haytham (Alhazen) (965 in Basra a€“ c. Though Crino raised many points of interest, he did not establish his case beyond reasonable doubt. The Carbuncle Mountains and the art of obtaining these valuable stones play an important role in the records of all cosmographers of the middle ages. It seems probable that we have here an early reference to the Great Wall of China, which appears on no other medieval map. This is Straboa€™s Cape Korykos with the Koryken Cave, where in Greek, in Roman, in Byzantine, and also in Armenian times stood a fortification. Calacia, or Calacatia, according to Batuta, is Kalahat, Kalhat, Kilat or Kilhat, in Oman southeast of Muskat, where its ruins may yet be seen near a small fishing village of the same name. The fanlike leaves, about two hundred square feet in size, the Singhalese are said to use in the place of paper. Lunde and Stone in the introduction to their English translation state that al-Masa€™udi received much information on China from Abu Zaid al-Sirafi whom he met on the coast of the Persian Gulf. It was then fixed with a solution of potassium cyanide, which dissolves the unaltered iodine.The daguerreotype (1839) was the first practical solution for the problem of photography.
Biasutti argued that the horizontal and vertical lines on the map are parallels and meridians taken from the world map of Ptolemy, and that the longitudinal extent of the old world approximately corresponds to his figure of 180 degrees. However, Conti did not himself visit these islands, though he gives their position as fifteen daysa€™ journey east of Java major and minor, to which their products were brought for transportation to the west. Two of these tributaries on the left seem to be the Brahmaputra and the Barak, though the larger one on the north may be intended as the Irawadi, since on this lies Ava, and above it is a legend taken from Conti: Rather the Ganges which otherwise is called the Dava. On the Catalan world map of 1375 appears a legend with an interesting pictorial representation.
Abulfeda and Raschiduddin, his contemporary, refer to the great wall as the Wall of Gog and Magog. Here we find Tarsso and Layazo, which in the middle ages was a harbor of Lesser Armenia, and an important terminal on the commercial route to India. The ancient Pusk olay manuscripts in the Buddhist monasteries were all written with an iron stylus on such paper, that is, on the leaves of the talipot palm, prepared by cooking and drying. In Syria al-Masa€™udi met the renowned Leo of Tripoli who was a Byzantine admiral who converted to Islam. In 1841, Claudet discovered quickening substances, thanks to which exposing times were shortened. It is difficult to see, therefore, if this map of 1457 was similar to that sent to Portugal, where its importance lay, for this information was accessible to all inquirers. Cloves at that time came only from the small islands of the Moluccas lying west of Halmahera, which perhaps the Genoese author has attempted here to represent. The word is Persian, signifying gate or narrow pass, and is a name often met with in Persia. Though our cosmographer makes certain mistakes in relation to the chief stream of India, yet his representation of the hydrography of Asia is near the truth, and, as stated, is much better than that given by Fra Mauro.
A mountain is indicated with a deep valley out of which a bird flies, having a piece of meat in its beak, and out of the same valley a river flows which in its course forms the boundary between India and China. As the builder of this wall, our cosmographer in his legend names Prester John who appeared on the Catalan map of 1375 in the Nubian and the Abyssinian regions, and from that time on the name seems to have been connected with the last-named region, though, as the Genoese map shows, it did not completely disappear from central Asia. Kalhat, from the time of Idrisi to the arrival of the Portuguese, was the most important harbor and port of departure from Oman and the entire Persian Gulf to India, as was earlier Sohar and later Muskat.
They'll tell you it's too complicated, then in the same breath, "guide" you to their service department.
More or less at the same time period, EnglishWilliam Henry Talbot substituted the steel daguerreotype with paper photographs (named calotype). Wilhelm Homberg described how light darkened some chemicals (photochemical effect) in 1694. The interest of the cartographer seems more probably to have lain in Contia€™s description of the oriental spice islands and the possibility of reaching them by circumnavigating Africa.
The name Sanday is unknown, and Bandan is only a corruption, and should not be confounded with Banda, as cloves do not come from that island. As the Indus and its delta received special consideration, so also did the Ganges, the mouth of which is marked by the following legend: The mouth of the Ganges River, the width of which is fifteen miles, on whose banks grow canes so large that they exceed [the size of] the arm, and the islands grow nuts which we call Indian. There is support for the belief that in the letter of Alexander III, the ruler of Abyssinia is to be understood, although the great majority of the allusions to him seem to support the idea that the original Prester John was a central Asiatic ruler.
It appears that at the time the Genoese map was drawn the shipping from the Persian Gulf and from Ormuz followed the coast from Oman almost to Ras-el-Hadd, and from that point with the monsoons direct to India. Niepce of Saint-Victor (1805-1870), Nicephorea€™s cousin, invented the photographic glass plate covered with a layer of albumin, sensitized by silver iodide. The novel Giphantie (by the French Tiphaigne de la Roche, 1729a€“74) described what could be interpreted as photography.Around the year 1800, Thomas Wedgwood made the first known attempt to capture the image in a camera obscura by means of a light-sensitive substance. His work is clearly related, though not closely, to the great map of Far Mauro, his contemporary. The wall stretching landward along the mountain ridge is yet, in part, well preserved, and one can follow its ruins for a distance of many miles.
In Egypt he found a copy of a Frankish king list from Clovis to Louis IV that had been written by an Andalusian bishop. Maddox and Benett, between 1871 and 1878, discovered the gelatine-bromide plate, as well as how to sensitize it. According to popular tradition, it extends along the entire ridge of the Caucasus, and so it appears on this map extending from the second iron door, or pass, across Asia.
From Maharatia, Conti states that he made a thirteen daysa€™ journey eastward to the Carbuncle Mountains, that is, to the border mountains of Burma, which the Genoese mapmaker attempts to represent. If they genuinely try to help you fix it yourself and you find that you can't fix the problem, they may be a really good place to look for service. The first European who actually visited the Moluccas was the Italian Varthena, about seventy years after Contia€™s expedition to the East. A legend on the map of the Pizigani makes it clear that the wall from Derbent was originally constructed to protect the Persian territory from the people of the steppe region. Think about it if they sold you this book, then they're genuinely interested in helping do-it-yourselfers!When you go into the store, have ready your make, model and serial number from the nameplate of the fridge (not from some sticker inside the fridge). The islands were considered as lying on the boundary of the habitable and known world, and as marking the limit of navigation. This will be an incomplete model number, but it is better than nothing and it should be good enough to get most parts with. If all else fails, check the original papers that came with your fridge when it was new.
As with the bitumen process, the result appeared as a positive when it was suitably lit and viewed. They should contain the model number SOMEWHERE. If you have absolutely NO information about the fridge anywhere, make sure you bring your old part to the parts store with you. A strong hot solution of common salt served to stabilize or fix the image by removing the remaining silver iodide.
On 7 January 1839, this first complete practical photographic process was announced at a meeting of the French Academy of Sciences, and the news quickly spread. At first, all details of the process were withheld and specimens were shown only at Daguerre's studio, under his close supervision, to Academy members and other distinguished guests. Paper with a coating of silver iodide was exposed in the camera and developed into a translucent negative image. Unlike a daguerreotype, which could only be copied by rephotographing it with a camera, a calotype negative could be used to make a large number of positive prints by simple contact printing. The calotype had yet another distinction compared to other early photographic processes, in that the finished product lacked fine clarity due to its translucent paper negative. This was seen as a positive attribute for portraits because it softened the appearance of the human face.
It is a long, stiff-bristled brush especially made for knocking out massive wads of dust from your condenser grille. Talbot patented this process,[20] which greatly limited its adoption, and spent many years pressing lawsuits against alleged infringers.
I have seen jury-rigged bottle brushes and vacuums used, neither of which clean sufficiently. He attempted to enforce a very broad interpretation of his patent, earning himself the ill will of photographers who were using the related glass-based processes later introduced by other inventors, but he was eventually defeated.
Nonetheless, Talbot's developed-out silver halide negative process is the basic technology used by chemical film cameras today. Hippolyte Bayard had also developed a method of photography but delayed announcing it, and so was not recognized as its inventor.In 1839, John Herschel made the first glass negative, but his process was difficult to reproduce. It's true that diagnosing and repairing electrical circuits requires a bit more care than most operations, due to the danger of getting shocked. Remember the rule in section 3-4 (1); while you are working on a circuit, energize the circuit only long enough to perform whatever test you're performing, then take the power back off it to perform the repair. You will only need to be able to set the VOM onto the right scale, touch the test leads to the right place and read the meter. In using the VOM (Volt-Ohm Meter) for our purposes, the two test leads are always plugged into the "+" and "-" holes on the VOM. The new formula was sold by the Platinotype Company in London as Sulpho-Pyrogallol Developer.Nineteenth-century experimentation with photographic processes frequently became proprietary. This adaptation influenced the design of cameras for decades and is still found in use today in some professional cameras.
For example, if there's a 50 setting and a 250 setting on the VAC dial, use the 250 scale, because 250 is the lowest setting over 120 volts. Touch the two test leads to the two metal contacts of a live power source, like a wall outlet or the terminals of the motor that you're testing for voltage. Petersburg, Russia studio Levitsky would first propose the idea to artificially light subjects in a studio setting using electric lighting along with daylight. It's derived from the word "continuous." In an electrical circuit, electricity has to flow from a power source back to that power source. In 1884 George Eastman, of Rochester, New York, developed dry gel on paper, or film, to replace the photographic plate so that a photographer no longer needed to carry boxes of plates and toxic chemicals around. Now anyone could take a photograph and leave the complex parts of the process to others, and photography became available for the mass-market in 1901 with the introduction of the Kodak Brownie.A practical means of color photography was sought from the very beginning. Results were demonstrated by Edmond Becquerel as early as 1848, but exposures lasting for hours or days were required and the captured colors were so light-sensitive they would only bear very brief inspection in dim light.The first durable color photograph was a set of three black-and-white photographs taken through red, green and blue color filters and shown superimposed by using three projectors with similar filters.
It should peg the meter all the way on the right side of the scale, towards "0" on the meter's "resistance" scale. It was taken by Thomas Sutton in 1861 for use in a lecture by the Scottish physicist James Clerk Maxwell, who had proposed the method in 1855.[27] The photographic emulsions then in use were insensitive to most of the spectrum, so the result was very imperfect and the demonstration was soon forgotten.
If the meter does not read zero resistance, adjust the thumbwheel on the front of the VOM until it does read zero. Maxwell's method is now most widely known through the early 20th century work of Sergei Prokudin-Gorskii.
If the heater's leads are still connected to something, you may get a reading through that something. Included were methods for viewing a set of three color-filtered black-and-white photographs in color without having to project them, and for using them to make full-color prints on paper.[28]The first widely used method of color photography was the Autochrome plate, commercially introduced in 1907. If there is still live power on the item you're testing for continuity, you will burn out your VOM in microseconds and possibly shock yourself. Touch the two test leads to the two bare wire ends or terminals of the heater.
You can touch the ends of the wires and test leads with your hands if necessary to get better contact. If the individual filter elements were small enough, the three primary colors would blend together in the eye and produce the same additive color synthesis as the filtered projection of three separate photographs. Autochrome plates had an integral mosaic filter layer composed of millions of dyed potato starch grains. Reversal processing was used to develop each plate into a transparent positive that could be viewed directly or projected with an ordinary projector. If there is GOOD continuity, the meter will move toward the right side of the scaleand steady on a reading. The mosaic filter layer absorbed about 90 percent of the light passing through, so a long exposure was required and a bright projection or viewing light was desirable. Competing screen plate products soon appeared and film-based versions were eventually made. If the meter moves only very little and stays towards the left side of the scale, that's BAD continuity; the heater is no good.
In a glass-tube or bare-element heater, you may be able to see the physical break in the heater element, just like you can in some light bulbs. If you are testing a switch or a thermostat, you will show little or no resistance (good continuity) when the switch or thermostat is closed, and NO continuity when the switch is open.
A complex processing operation produced complementary cyan, magenta and yellow dye images in those layers, resulting in a subtractive color image. If you do not, the switch is bad.3-3(c) AMMETERSAmmeters are a little bit more complex to explain without going into a lot of electrical theory. If you own an ammeter, you probably already know how to use it. If you don't, don't get one. Kirsch at the National Institute of Standards and Technology developed a binary digital version of an existing technology, the wirephoto drum scanner, so that alphanumeric characters, diagrams, photographs and other graphics could be transferred into digital computer memory. The greater the current that's flowing through a wire, the greater the magnetic field it produces around the wire.
The ammeter simply measures this magnetic field, and thus the amount of current, flowing through the wire.
The lab was working on the Picturephone and on the development of semiconductor bubble memory.
To determine continuity, for our purposes, we can simply isolate the component that we're testing (so we do not accidentally measure the current going through any other components) and see if there's any current flow. To use your ammeter, first make sure that it's on an appropriate scale (0 to 10 or 20 amps will do).
The essence of the design was the ability to transfer charge along the surface of a semiconductor.
Michael Tompsett from Bell Labs however, who discovered that the CCD could be used as an imaging sensor. Turn the "energy saver" switch to the "economy" position to shut off the anti-sweat mullion heaters (See section 4-1.) Close the refrigerator door to make sure the lights are off.
There may still be a tiny mullion heater energized in the butter conditioner or on the defrost drain pan, but the current that these heaters draw is negligible for our purposes (less than an amp). If you don't, the defrost heater or terminating thermostat is probably defective.3-4 BASIC REPAIR AND SAFETY PRECAUTIONS1) Always de-energize (pull the plug or trip the breaker on) any refrigerator that you're disassembling.
If you need to re-energize the refrigerator to perform a test, make sure any bare wires or terminals are taped or insulated. Energize the unit only long enough to perform whatever test you're performing, then disconnect the power again. 2) NEVER EVER chip or dig out ice from around the evaporator with a sharp instrument or knife. You WILL PROBABLY puncture the evaporator and you WILL PROBABLY end up buying a new refrigerator. If you use a blow dryer, take care not to get water in it and shock yourself.Better yet, if you have the time and patience, leave the fridge open for a few hours and let the ice melt naturally. You can remove large, loose chunks of ice in the evaporator compartment by hand, but make sure there aren't any electrical wires frozen into the chunks of ice before you start pulling them. 3) Always re-install any removed duck seal, heat shields, styrofoam insulation, or panels that you remove to access anything. They're there for a reason. 4) You may need to empty your fridge or freezer for an operation. If you do not have another fridge (or a friend with one) to keep your food in, you can generally get by with an ice chest or a cardboard box insulated with towels for a short time. Never re-freeze meats; if they've already thawed, cook them and use them later. 5) If this manual advocates replacing a part, REPLACE IT!! There is a reason that it stopped you can bet on it and if you get it going and re-install it, you are running a very high risk that it will stop again. Replace the part. 6) Refrigerator defrost problems may take a week or more to reappear if you don't fix the problem the first time. That's how long it will take the evaporator to build up enough frost to block the airflow again. After fixing a defrost problem, keep an eye out for signs of a recurrence for at least a week. The sooner you catch it, the less ice you'll have to melt. 7) You may stop the compressor from running using the defrost timer or cold control, by cutting off the power to the fridge, or simply by pulling the plug out of the wall.
However, if you try to restart it within a few minutes, it may not start; you may hear buzzing and clicking noises. If the system has not had enough time for the pressure within to equalize, there will be too much back pressure in the system for the compressor motor to overcome when trying to start.
Simply remove the power from the compressor for a few more minutes until the compressor will restart. 8) Do not lubricate any of the timers or motors mentioned in this manual.
In a cold environment, oil will become more viscous and increasefriction, rather than decrease it. If they genuinely try to help you fix it yourself and you find that you can't fix the problem, they may be a really good place to look for service.
Think about it if they sold you this book, then they're genuinely interested in helping do-it-yourselfers!When you go into the store, have ready your make, model and serial number from the nameplate of the fridge (not from some sticker inside the fridge). It's true that diagnosing and repairing electrical circuits requires a bit more care than most operations, due to the danger of getting shocked.
If the heater's leads are still connected to something, you may get a reading through that something. The greater the current that's flowing through a wire, the greater the magnetic field it produces around the wire.
That's how long it will take the evaporator to build up enough frost to block the airflow again.



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