show how it works some of the generators are attached to the underside of an aluminum plate that connected by a cable to the electric fan mounted on the model plane. yeah you got in front you have i simply put my hand on top of the body he transfers to the module of the norman the cold side is the big block of aluminum underneath i mean your sword temperature difference is what makes the rotor spin. between because that's what. nasa has used this kind of technology for ages the voyager one space probe launched in one thousand nine hundred seventy seven is powered by thermoelectric generators but still work after all this time. then a certificate in work for forty years in space and that must be useful on earth and . that's precisely what he's demonstrated by developing his special stoves. it's