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View Diary: Energy from the Moon (165 comments)

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  •  well, (none)
    i'm guessing the uranium supply far exceeds a few hundred years.
    •  Actually, it doesn't (none)
      Not here on earth anyways. This (definitely anti-nuke) site does have correct numbers on esitmated uranium reserves using current reactor designs.

      They suggest that there is only 30-40 years worth of nuclear fuel left.

      I don't disagree with that number given the assumption that current reactor designs are all that are used.

      But current reactor designs recover only about 4% of the U-235 in the fuel.  There are other reactor designs that will use more and produce a number of highly energetic (and admittedly very dangerous) Plutonium isotopes and there are Plutonium reactor designs.

      Plutonium has been avoided in power generation for two good reasons: first, it is possibly the most toxic substance on earth. Second, it can be much more easily weaponized than uranium.

      I'm not sure how long we would have if we used all the possible permutations of fissile materials, but it is finite.

      [-7.13, -8.41]

      by evilpenguin on Sat Nov 12, 2005 at 07:08:19 AM PST

      [ Parent ]

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