Looks like a great idea. I am intrigued by the principles involved, is it a 'fuel cell' or a pyro-electric generator? Where is the fuel input, usually a hydrocarbon (source of hydrogen) and an oxidizer or re-combinant. The Berkeley lab article mentions an oxidizer contained in the heated part of the device but where is the fuel? Does the device work if it is heated in an oven or perhaps a charcoal fire producing only gaseous carbon products CO/CO2? --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .