A 15-year-old Canadian girl used her knowledge of electronics to develop an innovative flashlight
Ann Makosinski realized that Peltier tiles, which produce electricity when one side of the tile is heated and the other is cooled, could use body-heat to create energy for a flashlight.
The voltage created by the tiles was not enough to power an LED light so she developed an electrical circuit to increase the voltage.
In September she will be one of fifteen finalists presenting their project at the Google Science Fair in Mountain View, California. The winner gets a prize of $50,000 and a trip to the Galapagos Islands.