Batteries that Draw on Body Heat for Power Coming for Cell Phones

Remember the movie trilogy of The Matrix, where people are used by machines as betteries? The idea of the body used as a source of power may not be only found in the realm of science-fiction. German scientists are already devising ways to enable small circuits to work with just enough electricity generated by heat from the body. They say that what's important is the difference between the temperature of the body and the environment. This way, a cellphone may be charged by just keeping it close to the body or warming it with the hands. For movie news, go to Hots Up.