January 28th, 2003, 03:17 AM
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Sergeant
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Join Date: Jan 2003
Location: Southern California
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Re: Finite resources or not?
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Originally posted by Wanderer:
quote:
Space vessels are not run on abundant charcoal and saltpeter. I imagine they run on things like uranium
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Current space ships (e.g. the Space Shuttle) use hyrdogen fuel cells (hydrogen + oxygen & a catalyst = electricity + water?) and solid oxygen fuel. Hopefully in the future they'll have nuclear fusion working - as fusion only requires hydrogen, which is rather abundant in the universe.
Yes, but what do they build the reactors out of? Do they need, say, Technetium catalysts? |