Body Heat to power cell phones?
Thursday, January 17th, 2008Science Daily has an article describing how silicon nanowires can be used to capture body heat, and use that energy to power a wide array of devices. Some examples could be the Department of Energy’s hydrogen fuel cell-powered “Freedom CAR,” and personal power-jackets that could use heat from the human body to recharge cell-phones and other electronic devices.
Apparently the human body generates over 25,000 BTUs in body heat, and more bioelectricity than a 120V battery. That should be enough to power a cell phone, and then some. Hopefully the machines won’t find out how efficient we are at generating energy…