Body Powered Devices
September 11, 2018 | Terry Sharrer
A pacemaker needs only fifty-millionths of a watt to function; a smartphone can run for five hours off of one watt of battery power. Knowing this, MIT engineers estimate that the human body can generate about 65 watts daily from movement, heat and chemical reactions. Harnessing this energy is the idea behind these engineers building “tribioelectrical devices.” This piece describes how the three types of piezoelectric harvesters work and how they might be used to power any other implantable device. MORE
Image Credit: KAIST and the Washington Post