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0 |
458 |
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4 |
443 |
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space cobwebs by
Kent Paul Dolan
space cobwebs
Looks like good news on producing fibers with the
strength of spider silk, in quantity, for
constructing the support member for that elevator...
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1 |
443 |
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Sub-G thrust to orbit. by
Brucebo
Is is possible to make it into earth orbit using a sub-G thrusting
rocket motor together with a hypersonic lifting body?
Assuming it is possible Newtonically,...
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8 |
440 |
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Tell me about the LEM by
Richard Lamb
The Lunar Lander has always fascinated me.
The first (and only) manned spacecraft to
land on another world.
Not being a part of that part of history,
I don't...
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5 |
440 |
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0 |
439 |
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Fast Transit: Earth to the Moon by
Mike Miller
Pretend a hypothetical SSTO tops off its tanks in low Earth orbit. It
now has plenty of fuel to get from LEO to the lunar surface. In fact,
it has 4000m/s of...
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0 |
418 |
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Lunar Regolith Simulant by
Richard Alexander
I read recently that there is a great need for several tons of lunar
regolith simulant. What would be required for someone to supply that
need? How hard is it...
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4 |
411 |
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Apollo ensemble mass by
Monte Davis
What was the total mass (w/ fuel) of the LEM, CM and SM? In other
words, how much gross payload had the S-IVB put into translunar
injection when it separated?...
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1 |
401 |
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Squyres book on Mars rovers by
Monte Davis
I've just finished Steve Squyres' _Roving Mars_, and can't recommend
it highly enough. It really gets across the nuts and bolts -- and the
emotional...
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0 |
378 |
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Did Huygens send JPEGS? by
G. R. L. Cowan
The files now at http://esamultimedia.esa.int/docs/titanraw/index.htm
are 176-by-768 JPGs. Where the same terrain is in five or 10 frames,
it seems conceivable...
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4 |
358 |