"Arthur P. Smith" <apsmith@a...> wrote:
> (4) Launch costs. $1000/kg, combined with the other technology
> targets, may allow space power to be cost competitive. Can we
> get to orbit for that, or less?

It seems with rotating space tethers and a reusable suborbital
rocket we can get well under this. I have a website with
a simulator at:

http://spacetethers.com/

I also just started a Yahoo group called "spacetethers" that
you can join at:

http://groups.yahoo.com/group/spacetethers/join

- Vince

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Vincent Cate Space Tether Enthusiast
vince@... http://spacetethers.com/
Anguilla, East Caribbean http://offshore.ai/vince
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You have to take life as it happens, but you should try to make it
happen the way you want to take it. - German Proverb