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What If the Apollo Program Never Happened?
astroengine writes "In a recent debate, Republican presidential candidate Newt Gingrich said he would like to beat the Chinese back to the moon. He has even been so bold as to propose setting up a manned base by 2020, driven by empowering private industry to take the initiative. It's ironic to hear moon travel still being debated 40 years after the last Apollo landing in 1972. Between then and now, NASA's small space shuttle fleet filled in for space travel, but astronauts could only venture as far a low earth orbit — at an altitude much lower than the early pioneers reached. If there were no Apollo crash program to beat the Soviets to the moon, would we have planned to go to the moon eventually? But this time with a commitment of staying? Or would we never go?"
Are you joking? Iron makes up nearly 15% of the moon's crust, with local concentrations varying. The same goes for aluminum. The plurality of the atoms in regolith are silicon which is even MORE useful for making solar power satellites. http://en.wikipedia.org/wiki/Moon#Surface_geology (see the table on the right).
As for the gravity well. Remember the saturn V? That was required to get men *to* the moon. Remember the small box at the bottom of the lunar lander? That was the rocket required to get men *back from* the moon -- with room to spare for a light truck, no less. The gravity well on the moon is much, much, much much smaller than that on earth. The technology used in linear motors on rollercoasters is more or less perfect for launching satellites from the moon, using the same type of solar panels you would be exporting as your power source.