domingo, 21 de junio de 2015

Transforming body heat into electricity.


A new nanotechnology converts body heat into energy
We would never be drawn when our mobile battery runs out. Corey Hewitt, graduated student, avoided a promising new technology called Power Felt, a thermoelectric device that converts body heat into an electrical current, can generate enough energy to make another call simply by touching it. This he invented in a Nanotechnology lab.

The idea of converting the human body’s energy into electricity has tantalized scientists for years. A resting male can put out between 100 and 120 watts of energy, in theory enough to power many of the electronics you use, such as your Nintendo Wii (14 watts), your cellphone (about 1 watt) and your laptop (45 watts). Eighty percent of body power is given off as excess heat. But only in sci-fi fantasies such as the Matrix film series do you see complete capture of this reliable power source.

Current technology for converting body heat into electricity is capable of producing only a few milliwatts (one thousandth of a Watt), which is enough for small things such as heart rate monitors and watches.