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25.09.2013
As they analyzed data from giant telescopes on mountaintops, and later data beamed to Earth from spacecraft such as the Kepler space telescope, they wondered: How did these large hot planets ever get so close to their suns? Scientists at the University of Michigan, working with a team of colleagues, have made a startling discovery using data collected by the K2 mission: One of these mysterious hot Jupiter systems has not one, but two close-in planetary companions, leading to new clues about planet formation and migration. This new discovery is helpful to scientists who are trying to understand how planets form and move in solar systems. Hot Jupiters get their name because of their large size and gaseous composition (like Jupiter) and their unusually close location to their sun (hot). Yet mysteriously these hot Jupiters in faraway solar systems orbit at distances roughly 10 to 20 times the radius of the sun away from their stars – which is significantly closer than Mercury orbits our sun. Becker and her colleagues made their discovery using data collected from the K-2 mission, which comes from a spacecraft holding the Kepler space telescope.
Becker's colleague, Andrew Vanderburg, a graduate student at Harvard University, noted Schwengeler's comments on Planet Hunters and shared it with Becker. David is a wonderful person to work with,he is always very responsive to our request and is prompt on delivery.We reccomend him anytime. David is an outstanding owner who is very responsible, Knowledgeable, and prompt in responding to customers. I highly recommend David from Deep Blue Smarthouse for people looking for steel framed housing solutions that can be shipped anywhere in the world. DeepBlue shed is manufactured from the finest grade Australian steel products with steel sheet cladding for added strength and durability.
In addition to the cost of the lights themselves, it’s usually necessary to hire a licensed electrician to do the installation. They are affordably priced, simple and safe to install yourself, can be relocated easily, and, of course, you also save on electrical costs. Task lights and spotlights are the brightest class of solar lights and usually carry the highest price tag.
That said, it is important to realize a solar task light will not perform like a standard 100- watt outdoor floodlight. Most solar task lights and spotlights are designed so they can be mounted in a number of ways and can be adjusted to shine in any direction. Often the solar panel can be mounted separately from the light, which allows you to put the panel in a place where it will get the sun, and the light where it’s needed.
While nearly all solar lights are weatherproof and UV protected, solar Task lights and spotlights are often more ruggedly constructed.
Choose the type that’s right for your application, and enjoy an outdoor landscape lit by the free energy of the sun!
Don’t worry about paying an electrician, running wires, or an expensive electric bill. Simply secure the solar panel to the outside of your shed, put the light inside, and you’re done. This Solar Shed Light is charged by a powerful Crystal solar panel and the light fixture holds 24 LED Lights. Porches, paths, pools, patios, picnic tables… and the list can get much longer because  those are just the P’s!
Some of the devices in this collage look like things from the future, but folks, this is the future. Traffic lights, public lighting and signs, cellphones, laptops and a whole slew of other consumables are on the way in an effort to reduce our dependence on fossil fuels, foreign oil and just plain save the planet.
Flexible solar rolls and briefcase style solar battery packs are just a couple futuristic ideas that have come to light (pun intended).
This is a very new and exciting form of power in an age where just about everything we use needs a power source from the baby’s toys to the grownups toys. A solar panel (photovoltaic module or photovoltaic panel) is a packaged interconnected assembly of solar cells, also known as photovoltaic cells.
The solar panel can be used as a component of a larger photovoltaic system to generate and supply electricity in commercial and residential applications. Because a single solar panel can only produce a limited amount of power, many installations contain several panels.
A photovoltaic installation typically includes an array of solar panels, an inverter, batteries and interconnection wiring. Solar panels use light energy (photons) from the sun to generate electricity through the photovoltaic effect.
The structural (load carrying) member of a module can either be the top layer (superstrate) or the back layer (substrate).


The majority of modules use wafer-based crystalline silicon cells or thin-film cells based on cadmium telluride or silicon. Most solar panels are rigid, but semi-flexible ones are available, based on thin-film cells.
Separate diodes may be needed to avoid reverse currents, in case of partial or total shading, and at night.
The p-n junctions of mono-crystalline silicon cells may have adequate reverse current characteristics that these are not necessary. Reverse currents are not only inefficient as they represent power losses, but they can also lead to problematic heating of shaded cells. Solar cells become less efficient at higher temperatures and so it desirable to minimize heat in the panels.
Very few modules incorporate any design features to decrease temperature, but installers try to provide good ventilation behind solar panels. Some recent solar panel designs include concentrators in which light is focused by lenses or mirrors onto an array of smaller cells.
This enables the use of cells with a high cost per unit area (such as gallium arsenide) in a cost-effective way. Depending on construction, photovoltaic panels can produce electricity from a range of frequencies of light, but usually cannot cover the entire solar range (specifically, ultraviolet, infrared and low or diffused light).
Hence much of the incident sunlight energy is wasted by solar panels, and they can give far higher efficiencies if illuminated with monochromatic light. Therefore another design concept is to split the light into different wavelength ranges and direct the beams onto different cells tuned to those ranges. The use of infrared photovoltaic cells has also been proposed to increase efficiencies, and perhaps produce power at night. Sunlight conversion rates (solar panel efficiencies) can vary from 5-18% in commercial production, typically lower than the efficiencies of their cells in isolation. Panels with conversion rates around 18% are in development incorporating innovations such as power generation on the front and back sides. SMIT’s latest technological innovation, the GROW panel, trumps both conventional solar panels and wind turbines in harnessing natural energy. While its unique panels can capture the solar energy like any other solar panel we know of so far, GROW can also utilize the power of the wind to produce energy as the breeze jostles its leaf-like slender design. Which might not be such a bad business plan given the aesthetic charisma of the leafy gizmo. I went to buy a solar shed light a few months ago and after a few disappointing experiences and more than one return, I finally found a light that worked pretty good for where I needed light. I try to do my homework when it comes to buying this sort of thing but WOW, just how much information does a guy need to go through in order to not trip over the lawn mower in the shed? After quite a bit of trial and error I finally realized that its not really the "brand" of solar panel light that matters but more importantly the "type" of solar cells that are being used to capture the sunlight and convert it into energy.
It's not very complicated but it is kind of involved so look around at a few other pages and I'll try to explain what I mean. I hope that someone can benefit from a few of the mistakes I've made along the way in my effort to "go green". Solar Panel Light For Sheds is proudly powered by WordPressEntries (RSS) and Comments (RSS). A sunscreen with broad spectrum UV protection and SPF 15 or higher is one skin-protecting tool. Note: If you need help accessing information in different file formats, see Instructions for Downloading Viewers and Players.
From microscopes to MRI scanners, imaging technology is growing ever more vital in the world's hospitals, whether for the diagnosis of illness or for research into new cures. Thomas Just SA?rensen and Bo Wegge Laursen are chemists at the University of Copenhagen, Denmark. It might seem odd, but one of the central challenges when taking pictures of cells and organs, is to avoid noise. Emission intensity images of human breast cancer cells, contrasting triangulenium dyes and the state-of-the-art long emission lifetime dyes. The long life of the triangulenium dyes means that an image can be produced without background noise.
Medical image analysis departments currently devote an incredible amount of time to staining samples, because all samples must be treated with two agents. Najua Tulos and co-researchers of the Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Shah Alam, studied the potential of chitosan to dye polyester fabric.


To obtain very-high-resolution 3D images of the cerebral vascular system, a dye is used that fluoresces in the near infrared and can pass through the skin.
Chemical compounds that can efficiently capture and convert light energy are in high demand as key components of inexpensive solar cells and advanced optical sensors. Micrometric and sub-micrometric contaminant particlesa€”what most of us call "dust"a€”can cause big problems for art conservators, the electronics industry, aerospace engineers, and others.
UT Dallas scientists are developing an innovative research technique that could help urologists better understand the early stages of kidney disease.
The crucibles that bore out early building blocks of life may have been, in many cases, modest puddles. Thermally-based industrial chemical separation processes such as distillation now account for 10 to 15 percent of the world's annual energy use.
Image courtesy: NASAANN ARBOR—For the past 20 years, astronomers peered into the night sky, puzzled about a type of planet called hot Jupiters. Some 300 hot Jupiters have been identified over the past two decades, and this is the first time any close-in planets were discovered.
The person who first spotted the possibility of a planet companion in the WASP-47 system was Hans Schwengeler, a "citizen scientist," who made note of it in a public forum called Planet Hunters. The team, which also consists of Fred Adams, a U-M physics professor and Becker's adviser, and Saul Rappaport, a professor at MIT, then ran a comprehensive analysis of the light curve in the K-2 data where this was noted, and confirmed the existence of two close-in planets – one Neptune sized, and another a super-Earth inner companion. All shed designs are fully engineered in accordance with the Standards Association of Australian building codes and are supplied with documentation to simplify building approval. A University of Copenhagen team of chemists have introduced a novel contrast dye that not only promises cleaner images, but also opens the door to motion pictures of what goes on inside cells. In a series of publications in well-regarded scientific publications, they have shown that the aza-oxa-trangulenium dyes have the potential to outperform all fluorescent dyes currently used in imaging. The latter I believe, will lead to expanded opportunities and broadened use, by physicians and researchers in developing countries, for example." Says Thomas Just SA?rensen. The agents that make it possible to see microscopic biological structures are luminescent, but then, so is tissue.
Where the state-of-the-art has completely stopped emitting at 30 ns, triangulenium still gives clear images after 30 nanoseconds and continues shining until the 100 nanosecond mark. Furthermore, the extra 90 nanoseconds opens the possibility of filming living images of the processes occurring within cells, for example when a drug attacks an illness. In our solar system that means formation must occur beyond the asteroid belt, far from the burning heat of the sun.
And in contrast with typical dyes, no specialized equipment is needed to see the dyes in tissue samples.
Now, Danish chemists have discovered a new dye and proved its worth against any of the dyes currently available. Just as the dial and hands of a watch might glow-in-the-dark, tissue becomes luminescent when exposed to light.
A lens from a pair of polarized sunglasses and an ordinary microscope are all that are required.
Tissue and other organic structures luminesce, or lights up, for 10 nanoseconds after exposure to light.
Someone who needs to assess the health of sick people wouldn't dare to rely on an untested substance.
Only when several researchers have shown triangulenium dyes to perform just as effectively as its predecessors can we hope for our substance to become more widely adopted," concludes Thomas Just SA?rensen. This decision followed a review of timelines and other data submitted by trade associations representing sunscreen manufacturers. For these broad spectrum products, higher SPF (Sun Protection Factor) values also indicate higher levels of overall protection. Reynold Tan, a scientist in FDA’s Division of Nonprescription Regulation Development, notes that FDA has been developing testing and labeling requirements for sunscreen products for decades.
However, only recently have the data become sufficient to establish an accurate and reliable test for broad spectrum UV protection, he says.



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