Very off topic, but I have been very interested in Peltier units and Seebeck engines for the last month or so; winter is indeed here. It would be interesting to

Very off topic, but I have been very interested in Peltier units and Seebeck engines for the last month or so; winter is indeed here. It would be interesting to see these used in a wider scale, or if it is even possible. Here are some links that describe them in more detail: Thermoelectrical Generator Kit - ThermoGenKit - http://www.youtube.com/watch?v=8mFyiYh94YE http://www.youtube.com/watch?v=8mFyiYh94YE Seebeck Effect - http://www.metacafe.com/watch/1129994/seebeck_effect/ http://www.metacafe.com/watch/1129994/seebeck_effect/ Thermo-Electric Generators - http://www.douglas-self.com/MUSEUM/POWER/thermoelectric/thermoelectric.htm http://www.douglas-self.com/MUSEUM/POWER/thermoelectric/ther... BMW Heat-Harnessing Technology - http://www.sacarfan.co.za/2009/10/bmw-heat-harnessing-technology/ http://www.sacarfan.co.za/2009/10/bmw-heat-harnessing-techno... http://www.innovationsforeveryone.com/Comment_Innovation.aspx?Id=4260 http://www.innovationsforeveryone.com/Comment_Innovation.asp... http://en.wikipedia.org/wiki/Thermoelectric_effect http://en.wikipedia.org/wiki/Thermoelectric_effect Using both heat and cold you can create a small amount of electricity from these units. I have seen something like this used in a camp. They would place one end of a metal rod into a fire and the other in a bucket of water. Then they could create enough electricity, using some type of thermoelectric circuit, to 'trickle charge' a cell phone or GPS.