Thermoelectric headlamp flashlight from 16-year-old Canadians Bashny.Net

16-year-old canadian Ann Makosinski, which last year took first prize at the prestigious Google science fair, ready to please the public his new invention: headlamp flashlight, which is powered by heat of human body.
The girl from childhood loved to disassemble the toy, studying how they work. Already in the sixth grade, her first works were presented at the science fair. One day one of her Filipino girlfriend (it's worth noting that Ann is a half — Filipina) told me that at her house turned off the lights and therefore it is difficult to prepare lessons in the evenings. As Anne said, "When something happens to a person close to you, it somehow comes to you and forces you to find a way to help him."
Canadian schoolgirl decided to invent for his girlfriend a reliable lighting source to eliminate the dependency on sunlight. A few months later, the young canadian was able to solve the problem by creating a thermoelectric flashlight, which is powered by heat of human hands. Filipino friend Ann now you do not need to hurry to have time to do homework before dark.
The present invention is based on the Peltier effect, when there is an absorption or release of heat, while electricity is at the site of contact of the two dissimilar conductors. The new device was called the "hollow flashlight" (torch Hollow) and brought Ann the victory at the prestigious Google science fair, which was held in 2013.
Now the young inventor ready to present its new development. In Los Angeles will host the international scientific and engineering exhibition Intel, where she plans to show headlamp flashlight with battery. This device is also charged from the heat of the human body, and can accumulate energy throughout the day. Then the flashlight can be turned on and use it for a long time.

Source: alternativenergy.ru