15-year-old Ann Makosinski, from Victoria, British Columbia, has created a LED flashlight powered only by body heat. Zero batteries. Just hold it and it will start working. Look at her demonstrating it in the video.
Plans are afoot to power a new building in Sweden entirely with the heat generated by moving bodies in Stockholm Central Station, the biggest train station in the Nordic region. How will it work? From Inhabitat:
Those freaky scientists at the Fraunhofer Institute are always thinking up cool stuff, and now they've figured out how to turn body heat into electricity. It works by taking advantage of the difference between two temperatures, but until these Fraunhofer dudes got ahold of the idea, the required temp range was too…