How to charge phone from the refrigerator: the energy saving technology transforms scattered heat to the electric power

Heat developed by various household devices, it is possible to transform partially to the electric power at helps materials with special properties (thermoelectricians). Meanwhile the majority of such "accumulators" is commercially unprofitable. New development uses selective crystallization in a liquid thermocell for increase in efficiency of transformation of thermal energy from low-power sources. Refrigerators, boilers and bulbs constantly radiate thermal energy in space. It can be saved "excess heat", for example, anew having turned it into the electric power. Such principle...