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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...
September 8th 04 05:05 AM
by Earl Colby Pottinger Go to last post
0 805
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...
(Multi-page thread 1 2)
September 4th 04 03:09 AM
by Allen Meece Go to last post
14 1,504
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...
September 3rd 04 03:25 AM
by william mook Go to last post
6 956
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...
September 2nd 04 06:58 PM
by dave schneider Go to last post
3 788
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...
August 31st 04 06:32 PM
by Jupiter Go to last post
0 679
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...
August 31st 04 05:16 PM
by sanman Go to last post
0 544
Virtual Apollo Guidance Computer (software) by Jon Berndt
Here's an interesting link (from NASAWATCH.com): http://www.sandroid.org/Apollo/index.html Jon
August 30th 04 09:14 PM
by Jon Berndt Go to last post
0 658
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...
August 26th 04 01:34 PM
by Bernard Peek Go to last post
5 722
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...
August 26th 04 03:25 AM
by Erik Max Francis Go to last post
2 577
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 ?
August 19th 04 12:49 PM
by Hans Go to last post
8 693
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...
August 13th 04 05:15 PM
by Ian Woollard Go to last post
7 770
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...
(Multi-page thread 1 2)
August 12th 04 06:52 AM
by Henry Spencer Go to last post
16 1,892
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...
August 12th 04 05:03 AM
by Allen Meece Go to last post
6 1,216
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...
August 12th 04 04:28 AM
by Allen Meece Go to last post
0 508
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...
(Multi-page thread 1 2)
August 12th 04 01:58 AM
by Henry Spencer Go to last post
11 1,272
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...
August 11th 04 01:22 AM
by Rick Jones Go to last post
1 853
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...
August 10th 04 11:31 PM
by John Schilling Go to last post
4 1,112
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...
August 10th 04 09:47 PM
by Alex Terrell Go to last post
9 3,293
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...
August 10th 04 07:01 PM
by John Kavanagh Go to last post
0 903
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...
August 7th 04 09:17 AM
by Narasimham G.L. Go to last post
6 969
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