A .0019 millimeter thick ultra thin solar cell device, thinner than a thread of spider silk, so flexible they can be wrapped around a single human hair have been invented by scientists.
The sun powered airplane made its inaugural flight to Paris and Brussels in 2011.
A new technology is developed by the Oregon State University (OSU) to utilize waste heat emitted from the exhaust pipes of millions of automotive engines, generators, factories, power plants and other utilities.
With the advent of cheap solar panels and high efficiency LED lights which can light a room with just 4 watts of power, these small solar systems deliver useful electricity at a price that even the poor can afford.
The governments of China and Singapore have combined their expertise and finances to develop the future city, which has a planned population of 350,000 and includes schools, medical facilities and business districts.