Teenager Invents Flashlight Powered by Your Body Heat

by Sean P. Aune | July 1, 2013

Don’t you hate it when the power goes out and you discover your flashlight batteries are dead? Well, so long as you have some body heat, a new flashlight will be able to illuminate your way through the dark.

Ann Makosinski, a 15-year-old from Vancouver, British Columbia, entered the Google Science Fair with her creation of a flashlight that is powered by body heat channeled through Peltier tiles. (Anyone who has seen the Matrix trilogy of films is sure to be feeling a little squeamish right about now.) The technology works when one side of the tiles is heated and the other cooled, which led to the flashlight performing better in colder temperatures, but it does indeed work.

Makosinski is one of 15 finalists in the Google event and will now go to Mountain View, Calif. in Sept to be judged for her entry in her age group. The grand prize winner will receive $50,000 and a trip to the Galapagos Islands. Seeing as the flashlight only cost $26 to build, that would be a pretty good return on investment. While the price tag may sound high, you have to remember that is one person buying parts to assemble it, the price would be sure to drop should this idea ever go into mass production for sale.

While the design and cost may not be perfect, we definitely think Makosinski is on to something here.


Sean P. Aune

Sean P. Aune has been a professional technology blogger since July 2007, but his love of tech dates back to at least 1976 when his parents bought...