01 Feb '09 09:43>1 edit
Originally posted by twhitehead…Of course it might be better to construct the first space elevator on the moon
Diamonds only burn at very high temperatures and I would expect nanotubes to have a similar high temperature burning point.
The issue of avoiding tracked objects could be solved simply by having a small jet engine on the counter wight so that it could sway from side to side. It would only need to move it a meter or two. I would expect it to be swaying qu current problem with the moon is that we must take with us any fuel required to lift of again.
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I am afraid that wouldn’t work because the moon spins on its axis at a much slower rate that that of the Earth (about once every 29 days if I remember correctly) which would mean the total length of the cable would have to be rather long despite the low gravity of the moon and I vaguely remember making a calculation that showed that the cable would have to be so long that the counterweight would interact with Earths gravity too much making it too unstable.
Also, putting a space elevator on the moon would defeat the main point of having a space elevator! -which is to make it easier to launch both people and satellites etc into space from EARTH without having to use expensive and energy inefficient ways of achieving escape velocity -what is the point of putting a space elevator on the moon if, in order to use it, you have to first transport whatever you want to go in space from the Earth to the moon first using inefficient means and only THEN put it into space using the space elevator!? -if it wasn’t for the fact that a space elevator on the moon would be too unstable anyway, the only way it could be useful to put it there is if satellites and other space machinery was manufactured on the moon itself (perhaps using robots) and then put into space by the elevator on the moon.