A team of scientists at the University of Pennsylvania have developed the world's first circuit powered by solar energy that can power itself, as long as it's left in a beam of sunshine. It could eventually power a new line of consumer devices or even model the human brain.
A new test will be performed by Showa Denko on Feb. 15, 2010. The thermoelectric device is designed to be attached to the exhaust pipe of a car and supply electricity to the car's air conditioner, thus improving the fuel mileage.
Professor Greg Scholes, the lead author of the study published recently in Nature, says: "There's been a lot of excitement and speculation that nature may be using quantum mechanical practices. Our latest experiments show that normally functioning biological systems have the capacity to use quantum mechanics in order to optimize a process as essential to their survival as photosynthesis."
Up to now, the most used antireflective coating method has been the vapor deposition of a silicon nitride film by using a highly-flamable silane gas, which can ignite when exposed to air. Transporting, storing, ventilating silane gas and other safety-keeping operation make the process very expensive.
Scientists from Virginia Commonwealth University, Peking University in Beijing and the Chinese Academy of Science in Shanghai made a discovery that could help other researchers build hydrogen containers that could make the gas compete with petrol-based fuels in terms of energy density and availability.
Titanium dioxide (TiO2) by itself makes up a very low performance electrode, because the electrons move very slowly through it (can take years until you could fill a millimiter-thick TiO2 piece). When you reduce its thickness, though, TiO2 acts like a very good electrode.
University of Columbia researchers, along with their colleagues from MIT, have some results in reproducing the Earth's magnetic fields for developing nuclear power plants based on nuclear fusion - the ultimate dream of scientists that uses the same principle that the Sun operates on.
A group of students at the Harvard University have come up with an ingenious idea that could change the lives of African people. They have developed an energy harvesting soccer ball called sOccket that is able to produce electric energy when being kicked around.
Takara Tomy is a Japanese toy maker that recently developed a radio-controlled toy car called "Ene Pocket". The thing is equipped with a Sony bio-battery fueled by sugars like those in sodas and fruit drinks.
Pacemaker owners all over the world and other people in need of a reliable, small current source will surely be glad when they'll hear that Princeton University scientists have developed an ultra-efficient (80%) piezoelectric system, able to transform mechanical work into electricity.
