Greetings, I have a science project to make and i have an idea but i am not so sure about it, the idea is to convert thermal energy into electrical energy which will run a small engine. I want to put that device in a cooking pan and that heat will be converted into electrical energy which will run a small engine that will mix the liquids in the cooking pan. I did some research about converting thermal energy into electrical energy and i did understand the basics "maybe", since there are many words i didn't understand, i am still in grade 11. This is a drawing of what i understood so far :- https://physicsforums-bernhardtmediall.netdna-ssl.com/data/attachments/70/70927-c5b66fd0d41a6502db5ef1ce5ebae3f2.jpg [Broken] well, i don't know if that sketch could produce electricity, but if it does, how can i increase the amount of the electricity that this converter produce, is it by increasing the number of copper/iron wires?, and/or is it by increasing the heat? the thing i have read is that if we connected the iron wire into different tides of a battery one will heat up and one will be cold, i don't know why, but if that was true, should i heat one iron wire only? i know that the heat would transfer and try to be equal between copper/iron wires. my final question is, is this converter gives a fair amount of electricity, or should i give up or use another kind of converter?. Thanks.