electricity

[schonovic]

is anyone out there savvy enough in physics to ponder my idea;i call it an inverse heating element, which is exactly what it sounds like a band of material that converts intense heat and light into electric wattage; the opposite of an electric space heater which converts electricity into heat and light, a circuit of the inverse heating element would be a 9volt battery to a wire to the "element"(which would rest in a campfire)increasing the wattage which would be fed to a thicker wire to a transformer(load) decreasing the wattage then to a thinner wire back to the 9volt battery. could this happen or why not?

[jake-the-peg]

Sorry it's been done

In fact it powers an awful lot of space probes

http://en.wikipedia.org/wiki/Radioisotope_Ther moelectric_Generator