5. Body Heat

Image Credit

How many of us have wished we could reduce the production of our own body heat a bit on a hot summer day? Since the human body produces a steady supply of heat as long as we are alive, scientists reasoned that there should be away to use it, and not just let it dissipate into the air around us. New projects in Europe are making use of body heat that is captured to heat both train stations and homes. Putting a very different and somewhat morbid spin on things, a crematorium in the United Kingdom is actually using the heat from the cremation process to help heat the building.