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Question
The differance in the temperature of the metales leads to the differance in electerical charge.
can we use that to make a usefull current ??.
Yes we can, and some devices and spacecraft are powered this way already. However, the efficiency is terribly low, only about 5-10%. See this article on thermogenerators: http://en.wikipedia.org/wiki/Thermogenerator There are many links to follow from there, the information is good (some people don't trust wikipedia, but when a scientist points you to the page and has read it over and finds it valid it's generally a valid page).
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| Comment | Thank you MrSteve Nelson .your answer whas very emportnt to me | ||
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Steve Nelson
Expertise
Fusion, solar flares, cosmic rays, radiation in space, and stellar physics questions. Generally, nuclear-related astrophysics, but I can usually point you in the right direction if it's not nuclear-related or if it's nuclear but not astrophysics.
Experience
Currently a physics professor at the University of Texas of the Permian Basin. Doctoral dissertation was on a reaction in CNO-cycle fusion, worked in gamma-ray astronomy in the space science division of the naval research laboratory in the high-energy space environment branch.
Organizations
Physics professor at the University of Texas of the Permian Basin.
Education/Credentials
Ph.D. in physics, research was on nuclear fusion reactions important in stellar fusion.
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