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In-flight comet mining for water and fuel by
Earl Colby Pottinger
First Abdul Ahad you must face facts. If you come up with a bad idea, it
remains a bad idea no matter how many times you repeat it. There is nothing
wrong or...
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0 |
816 |
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Air Ship To Space? by
ChrisV01
A while ago I saw an idea for an "Airship To Space" on JP Aerospace's website.
How does this work? They mentioned using electric rockets which have very...
( 1 2)
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14 |
1,516 |
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Exotic Propulsion ? by
william mook
Nuclear fission converts about 1 part in 200 of the nucleon rest mass
to energy.
Nuclear fusion converts about 1 part in 20 of the nucleon rest mass...
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6 |
963 |
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Fuel level monitoring techniques by
David Findlay
After seeing the Armadillo crash, I thought to myself why didn't they just
have a fuel guage and monitor it? Then I thought some more and realised
that it...
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3 |
797 |
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Discovered: Most Earth-like planets yet by
Jupiter
From a story in World Science:
Link: http://www.world-science.net/othernews/040831_newplanetsfrm.htm
"Astronomers this morning announced the discovery of a...
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0 |
690 |
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Structurally-Reinforced Aerogels by
sanman
Here's some interesting news:
http://www.spacedaily.com/news/materials-04zzd.html
Is it then possible that such structurally-reinforced aerogels could
be...
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August 31st 04 05:16 PM
by sanman
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0 |
548 |
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0 |
663 |
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O'Neill habitat spin axis by
Russell Wallace
I'm designing an O'Neill habitat for use in a game scenario, where I'm
trying to keep the science as plausible as possible. It's going to be
the classic...
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5 |
730 |
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Bieliptic Transfer Orbits by
Charles Talleyrand
Can someone explain what a bieliptic transfer orbit is more
efficient than a Hoffman transfer orbit when the ratio of
initial to final orbits is large and...
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2 |
581 |
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Quantum entanglement propulsion by
Hans
Here is an article on the subject.
http://www.spacedaily.com/news/physics-04w.html
Almost sounds too good to be possible.
Any comments ?
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August 19th 04 12:49 PM
by Hans
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8 |
706 |
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Altitude compensation with gas injection by
Iain McClatchie
Suppose you have a high-altitude rocket nozzle: It expands the flow to
1 psi at exit. Now suppose you want to light this thing off on the
ground. You have...
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7 |
780 |
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Hydrogen peroxide helicopter by
Andrew Nowicki
Andrew Nowicki wrote:
AN The turbines are placed in the tips of the helicopter
AN blades, so the propellant is compressed by the
AN centrifugal force like...
( 1 2)
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16 |
1,933 |
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SpaceShip 1, 2 ..n by
[email protected]
A lot of discussion on this and other groups orbits around
the difficulty is scaling SS1 to an orbital vehicle.
There has been a lot of discussion about Mr...
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6 |
1,231 |
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ROBOTIC hubble repair? by
Allen Meece
This is so weak. It should embarass every space fan in America. After all's
said and done, it'll cost 2 billion dollars to send an automated monkey wrench
to...
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0 |
514 |
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Cassini's engine? by
David Given
Does anyone have any references to Cassini's main engine technology?
I read a report on the SOI burn recently; 600m/s dV, with a continuous
attitude change...
( 1 2)
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11 |
1,278 |
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ISAS Solar Sail by
John Kavanagh
ISAS Deloyed Solar Sail Film in Space
http://www.isas.jaxa.jp/e/snews/2004/0809.shtml
Beyond the first press release, I am unable to find any more
information...
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1 |
861 |
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Bielliptic Transfer by
Reza
Hello,
Assume there is no plane change. Simply it is required to put a
satellite from its LEO orbit with inclination angle of zero into the
final GEO orbit...
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4 |
1,128 |
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Space Elevator cars' shielding by
Frank Scrooby
Hi all
A major objection raised time-and-time-again (like a struck record really)
about humans going either up or down a space elevator is the radiation...
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9 |
3,305 |
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ISAS Solar Sail by
John Kavanagh
ISAS Deloyed Solar Sail Film in Space
http://www.isas.jaxa.jp/e/snews/2004/0809.shtml
Beyond the first press release, I am unable to find any more
information...
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0 |
908 |
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Best material for space tethers by
Andrew Nowicki
Some plastic tethers are very strong but they
may be vulnerable to space radiation and thermal
fatigue. Perhaps the best material for the space
tethers is a...
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6 |
979 |