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Unread 29-03-2013, 18:02
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Re: Are we allowed to use helium?

Quote:
Originally Posted by Whippet View Post
If I remember correctly, it comes from the radioactive decay of Uranium.
That's the most correct answer so far (Plutonium also releases alpha particles). Then it gets trapped in the ground and can be mined. Nice!

Maybe one day we'll be able to harvest it from fusion reactors as well (or the sun).
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