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Originally Posted by TheBigDog
We are not evolved for life in zero g. We need to overcome theno gravity issue or we cannot colonize space.
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No, we are certainly not evolved for life in zero G, which means we would have to either adapt biologically (which would take too long), or use artificial gravity to exercise a few times every day. For this we can use a centrifuge on the Moon or Mars, and live in spinning colonies in space.
Also, if Heim theory is correct (or any number of others), we should be able to produce artificial gravity fields at some point in the next century.
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Originally Posted by TheBigDog
The elevator you suggest shoud be much longer. I read about them being 62000 miles long so that geosync is the center of balance, and the end is actually well in excess of escape velocity. So to launch space missions you would just crawl them to a high point, let go at the correct moment, and you are launched into space.
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Yes I think I've read something like that as well, and that's probably the best way to do it.
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Originally Posted by TheBigDog
Putting them on the moon might prove difficult because it turns so slowly, despite the lower gravity.
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Yeah, I've since done a little reading on lunar geosync and it seems its a bit too far away from the moon to be of much use... However, it's pretty easy to land a lot of material on the moon so a luna elevator isn't all that important.
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Originally Posted by TheBigDog
So if you want to build your vision of the future, what are the technologies that we need to be working on today to make it happen? What will be the key breakthroughs?
Bill
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We need to develop strong/long nanotube ribbons.
It would be nice to also have faster propulsion, artificial gravity fields, hyperspace travel, anti-gravity, and indefinately extended life spans...
But I'll be happy with the elevators for now. We can do a lot with just that.
