On Tue, 17 Dec 2002 11:12:01 -0800, [EMAIL PROTECTED] (Julie
Porter) wrote:
>I was quite surprised how big these birds were. I think though Randall hit
>the point when he refered to compactness of scale and materials. So unless
>one is working with calvenite and unobtanium the mass fraction and orbital
>ISP has the same limits it did some 60++ years ago.
I think what can be done hasn't changed much. I think who can do it
has changed enormously. A V-2 could probably be built by the combined
efforts of the space startups and the serious amateurs, without a
government contract. 60 years ago, it took the best efforts of the
Vehrmacht to do that.
-R
--
"Is this a bagel?"
"It's the Guardian of Forever!"
"Well yes. But is it a bagel?"
--Overheard at Loscon 29
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