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"You have to budget the number of fuzzy rules you use to control a system. It turns out, you can state the optimality principle in three words: 'patch the bumps.'"
- Bart Kosko
 |
| Lunar Mining | ||
| Very early (first?) reference to mining operations on the moon. |
Who knew that the moon - Earth's moon - contains deposits of that rare - yet indispensable material, radiactum? And what if someone (perhaps someone on Mars) was already on the moon, stealing this precious ore?
| The third building seemed a lean-to banked against the cliff wall, a slanting shed-wall of glassite fifty feet high and two hundred in length. Under it, for months Grantline bores had dug into the cliff. Braced tunels were hewn penetrating back and downward into the vein of rock.
The work was over. The borers had been dismantled and packed away. At one end of the cliff the mining equipment lay piled in a ltter. There was a heap of discarded ore where Grantline had carted and dumped it after his crude refining process had yielded it as waste. The ore slag lay like gray powder flakes strewn down the cliff. |
| From Brigands of the Moon,
by Ray Cummings. Published by Astounding in 1931 Additional resources -
|
Moon mining has been a popular topic in the last few years. After President Bush announced plans to return to the Moon, arguments for doing so have come thick and fast from moon enthusiasts.
One of the best reasons for going back was found in (among others) sample 75501, collected by astronaut Harrison Schmitt on December 13, 1972 during the Apollo 17 mission. It turns out that University of Wisconsin engineers found - not gold - but helium-3.
It turns out that hydrogen fusion takes place at very high temperatures, requiring a magnetic containment field. Hoever, maintaining a deuterium-deuterium fusion reaction for long periods exceeded the limits of the magnetic containment technology. Substituting helium-3 for tritium allows the use of electrostatic confinement and reduces the complexity of fusion reactors. As a bonus - no high-level radioactive waste is produced, either. Helium-3 will likely mean practical hydrogen fusion.
One fly in the ointment is that mining enough helium-3 to power a city like Detroit for a year, about 220 pounds, would require digging up a 3/4 square mile piece of moonscape to a depth of nine feet.
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| Regolith Excavation Challenge Yields Prize Money |
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Gerry was dubious. She had seen abortive attempts at paralysis rays before.
Let your fingers - uh - your robot do the walking. And hopping.
