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Last week, researchers from ADAC (General German Auto Club), the world’s largest automobile club, managed to start and drive away in models with keyless entry from 24 different brands. Once the car is running, thieves can drive it away as far as a tank of fuel will take them, according to ADAC.
According to Aurelien Francillon, Boris Danev, and Srdjan Capkun, who authored the study Relay Attacks on Passive Keyless Entry and Start Systems in Modern Cars, Smart Key systems on all modern automobiles work in similar ways.
What most people don’t realize is that the system is always on, always working, and always communicating. In every Passive Keyless Entry and Start system the team evaluated, their method was enough to make the key send an open or start message via the UHF channel.
The insidious scenario posited by the scientists happens when an unsuspecting driver parks his car in a garage. For safety reasons, once the car is running, it won’t shut off even if the key is out of proximity, for a lot of reasons. Some reporters have suggested storing the key in a freezer, but that countermeasure is ineffective, since the signal amplification is sufficient to overcome the attenuation provided by a metal box. That’s probably the most effective, least obtrusive means of protecting your car at home. The Big Bang was a FREE day-long education event organised by Kent & Medway STEM, (part of Canterbury Christ Church University) took place on Friday, March 18 at Discovery Park, with the aim of inspiring a love of STEM subjects. So there was plenty going on to fire the imagination and to reconsider pre-conceived ideas of STEM subjects. STEAM club meets every lunchtime for half an hour or so and is open to all pupils from all Year groups, with the senior boys acting as guides and mentors to the juniors for more tricky stuff such as Robot C coding, and electronics. They have tackled a range of STEAM projects, some small, some large, but all of them interesting and different. The club gives pupils opportunities to create, build and learn about various engineering or scientific principles they are taught in the regular (curriculum) KS3 STEM Lessons, and remains a most popular club, with a proven record of success. Four groups of students from four local schools came to Canterbury Christ Church University (CCCU) to learn more about how to investigate crime.  One group of  students, from Aylesford is studying forensics at school, so it was especially useful for them. There were a lot of lively questions from the students and creative thinking to work out what certain patterns meant. Over 22 STEM Ambassador’s visited each school for two one hour sessions facilitating up to 80 Year 7 and 8 students. Ten schools from all over the Kent and Medway area had groups attending the full day event at the Canterbury campus of Canterbury Christ Church University.
As twilight fell on Thursday night 3 December, you would have seen a crowd of young and old gathered outside the Old Sessions House at Canterbury Christ Church University – all clambering to see what was happening in the centre. What followed was an onslaught of scientific tricks – not magic but real science to amaze all of our senses. He found some cotton and set it alight – impressive enough in itself – then he found a bit of cotton that had oxygen incorporated into it – woosh!  We barely saw the flame. Then Dr Szydlo found a flask of liquid nitrogen and threw some of it in the air to thrill the crowd as the very very very cold stuff warmed up and disappeared into thin air.
He started to feel a bit wobbly so he boiled a kettle to make himself a cup of tea… How dramatic was that? During the show, Dr Szydlo had had some balloons strung up on the front desk, floating in the air.
By investigating the evidence the truth became clear – aspects about the death and the suspects pointed in one direction…. It was a fascinating day and a great opportunity for the students to find out about careers in Forensic Science and where to study for it. Within the workshops, students were introduced to a range of chemical processes, undertook experiments and recorded and thought about the results. 40 young people from Towers School and Highworth Grammar School for Girls in Ashford benefited from a day of interactive sessions on careers within the engineering sector. Hosted by CXK*, the pupils from Years 9 and 10 took part in four different activities, all designed to raise awareness of what engineering is and the different opportunities available within the sector.  As part of the day, they heard a talk from two engineers at Balfour Beatty Rail on their experiences and also received a free employability skills check, using an online psychometric tool Carrus. Anna Pelham, a teacher at the Towers School, stated, “It was certainly interesting to see some depth into engineering.
Secondary Pupils (KS3) from Sittingbourne Community College, Brockhill Park Performing Arts College and Gravesend Grammar School visited the Canterbury campus on Wed 4 Nov to investigate a mock crime scene. Through a series of workshops the students collected evidence and ran tests just as experts would in real life.
STEM Ambassadors from the School of Law, Criminal Justice and Computing at Canterbury Christ Church University ran the event to give students an insight into forensic science careers and further education.
This event was to support setting up a STEM club and included resources and practical ideas the participants could take away.
Kent & Medway STEM hosted a hands-on activity in Canterbury on Wednesday 20 October to inspire and support Teachers running STEM Clubs – the topic was Cosmetics Chemistry.

After an short introduction with coffee and cakes, the teachers and ambassadors were introduced to and then made a whole variety of cosmetic products that can easily be made with their students in a STEM Club in their school. All the activities are very safe and easily achieved but any potential hazard points were highlighted as well as different options given. Bath bombs were made first, using bicarbonate of soda and citric acid with added scents and colours. All the products set quickly so by the end they could take home their hand crafted gifts in cellophane bags and small screw topped tins.
Each teacher was sent back to their school with a large box of materials to make all the products with their own students. Kent & Medway STEM regularly hosts free CPD events for teachers and STEM Ambassadors, please visit the events page to browse the upcoming events. Kent & Medway STEM hosted a free twilight CPD on 3D printing at the Discovery Park in Sandwich. The world of 3D printing has been evolving rapidly with potential solutions in nearly every field from replacement body parts to, lighter more efficient plane components. On 30 July 2015 and 27 August 2015 two amazing evenings of LEGO® Challenge were organised at Maidstone Museum, set by ambassadors from STEMNET. Over the two evenings, 279 children (and a few adults!) joined us in the Museum cafe from 6 pm to create their own museum exhibit – provided with over 30 kg of LEGO®!
Judging started from 8 pm onwards, with lots of great prizes including sets of LEGO® to allow children to keep up the good work on developing their future engineering skills. Chemistry at Work - an exciting and engaging way for students to interact with local organisations based in the chemical sciences. Over 270 students from schools across Kent and Medway attended yet another extraordinary Chemistry at Work event at Canterbury Christ Church University on Thursday 2 and Friday 3 July 2015.
The annual event is organised by Kent & Medway STEM supported by the Royal Society of Chemistry. Workshops introduced a range of chemical processes including making toothpaste, ph testing and the chemistry of medicines. With the recent opening of the Ace Hotel in New Orleans, Haspel has offered up an exclusive summer-centric suit for the occasion. WANT Les Essentiels and Garret Leight have teamed up for a capsule eyewear collection that pulls inspiration from both brands. But in practice, it leaves your car wide open to thieves to either break in, or drive the car away, using nothing but a $17 amplification device and a small loop antenna. A quick search of the BestRide database reveals 1.5 million cars for sale right now equipped with Smart Key technology. The car uses a low frequency radio-frequency identification (RFID) tag that provides short range communication (one to two meters in active mode, and just a few centimeters in passive mode) to allow the key and the car to communicate, verify that the key is the right one for that car, and allow the car to start.
The key just has to be within a certain proximity to allow someone yanking on the door handle to enter. The key is safely hanging on your key hook inside the house, 50 meters past the maximum range, and even if thieves gain entry, the key would need to be within a couple of meters of the start button to start the car.
What Francillon, Danev, and Capkun discovered in their study was that a relatively small electronic amplifier could not only increase the range of the key allowing entry, but increase the range of the key allowing it to start. It’s conceivable, for example, that the driver could start the car with the door open and drop the key in the driveway, out of a jacket pocket. The scientists suggest that removing the battery from the key will render an attack harmless, but it’s also the most inconvenient solution for the user. If you carry a purse, it’s relatively convenient to store your key in one away from home, too. Some of the scientists running sessions for the students are currently working on the development of new drugs and treatments at Discovery Park. It is wonderful to have this opportunity for students from all over the region to meet people for whom STEM is not just a job, it is their passion. They have also just started a weekly after-school 'Junior Game Creators' branch for Y7 and 8 pupils to learn about how games and apps are created and coded.
Some ideas come from the RAEng Kit Boxes such as 'Skeleton Bob' or the 'Smart Materials', and others come from the students themselves, such as the VEX Drawing Robots (Y7 and 8) or the Aerial Pollution Drone (Y12 and 13).
The team at CCCU who are experts in crime investigation helped all the students solve a crime that had been set up for them. Miraculously, the liquid suddenly darkened, no longer clear – with only the vibrations of the strings to make it happen. When this was lit it turned into a mini volcano and spat out dark green granular muck that had to be cleaned up. Local STEM Ambassadors, working in the Chemical Industry or for an organisation using Chemistry in their work, visited the school and led a set of workshops to encourage the students to see how vast the range of careers is that are available to those interested in chemistry. They found out about DNA and how plants are used in modern medicines as well as traditional herbal medicine. People often associate engineering with limited jobs, such as planes, buildings and trains.

The body of a female had been found in a bedsit in Canterbury and the students were tasked with investigating the death to identify the offender. Visiting the onsite mock bedsit, students searched for evidence trying to gather information from items remaining at the scene and making note of the blood splatter. Then soaps moulded into small roses, hearts or stars and then lip balm coloured with lipstick and made creamy with avocado wax.
We have over 700 STEM Ambassadors from a wide range of backgrounds willing to support STEM Activities for free. At the end of September NASA announced the winners of its 3D Printed Habitat Challenge Design Competition, a challenge which asked participants to develop 3D printed architectural habitats for the future population of Mars. An ambassador from Delphi Diesel Systems even printed a real-life part to fit on a component at the event.
The event opened students’ understanding to the wide range of applications and careers which involve chemistry. Secondary school students from years 9 and 10 visit a range of interactive presentations by Canterbury Christ Church University staff and volunteer STEM Ambassadors who work for local companies. Students undertook experiments, recorded results and learnt about important applications of chemistry in the work place. We covered their complete men’s lineup for spring recently and think this piece will compliment the collection well. You can defeat thieves, but isn’t as easy as putting the key in the freezer, like some urban myths suggest.
When the loop antenna is presented close to the door handle, it captures the car beacon signal as a local magnetic field. The driver then walks past an antenna, which relays an amplified signal to the car that the key is in range. It’s even more logical that the battery in the key fob could die while the car is in motion.
The problem is that leaving a metal key in the microwave with other people in the house could result in frying the key to oblivion when somebody goes to heat up a corn muffin. Students learned about fire and how a suspicious fire can be investigated as well as what it is to be a forensic chemist. It’s great for the students to see how far it branches out and what it covers, certainly the endless opportunities that engineering offers. Using biological samples the pupils then examined hair, body fluids and fibres in attempt to narrow down who had been present in the bedsit.
No matter how obscure the STEM Club please get in touch with us and we can help arrange STEM Ambassador support.
To enable schools to access this exciting technology Kent & Medway STEM recently added two Ultimaker 2 Go printers to its catalogue of resources available for schools and STEM Ambassadors to borrow free of charge.
Along with some networking opportunities over tea and cake the event was also an opportunity for teachers to link with STEM Ambassadors and discover the support available to their schools. The rules were fairly simple; grab the challenge instructions, explore the galleries to choose a museum exhibit, fill a bucket with bricks (be nice and don’t be greedy) and then get building! For the final test, a STEMNET engineer tested the models for structural strength by destroying them! The shell’s a crumpled denim that really delivers some character and makes it standout.
Yes, it was possible for thieves to unlock the door by or storing a code, but it meant a thief would need to be near the car when the key was operated. This field excites the first antenna of the relay, which creates by induction an alternating signal at the output of the antenna. A thief with a second antenna simply pulls the door handle, enters the car, pushes the start button and drives away.
The chemist will analyse a variety of samples collected at the crime scene to determine whether they can be linked to a suspect. Furthermore they investigated inks and drugs to determine more facts about the death and suspects.
Nothing on this car is superfluous, every vent, wing and inlet has been tested tirelessly and exists to serve a single purpose.
This electric signal is then transmitted over the coaxial cable and reaches the second antenna via an optional amplifier.
We were all outside because Dr Szydlo was worried he might have set off the smoke alarms if he’d done it inside. The need for an amplifier depends on several parameters such as the quality of the antennas, the length of the cable, the strength of the original signal and the proximity of the relaying antenna from the car’s antenna.

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