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Explosive limits of gases mixtures by Benoît BULLIOT
Hello I am searching for all kind of informations about explosive limits of mixtures , like mixture of oxygene with other gases. For example, what are the...
September 9th 03 04:02 PM
by Andrew Higgins Go to last post
1 1,569
Interplanetary Transport Network transit times by Bernhard Kuemel
Hi sps! Does anyone know about how long transit times in the ITN are and how often there are launch windows? I guess the launch windows are at least one...
June 5th 12 01:00 PM
by Bernhard Kuemel Go to last post
0 1,397
ship floating on atmosphere by Bernhard Kuemel
Hi! Is it feasible to make a ship that floats on the atmosphere? A kind of bowl with the bottom at 5-10 km and the top so high that it can be sealed with a...
June 16th 09 06:11 PM
by Bernhard Kuemel Go to last post
0 800
Optimum constant-thrust transfers? by Bertil Jonell
There has been a lot of work done on Hohman and Bielliptic transfers, but has there been anything on constant-thrust transfers? Of course, the "optimum" in...
(Multi-page thread 1 2)
November 25th 03 07:29 AM
by Henry Spencer Go to last post
16 1,357
heat shield testing by Bill Bogen
How are thermal protection systems tested on the ground? By directing superheated air at various temperatures, pressures, and durations to simulate a re-entry...
July 26th 04 05:24 PM
by Henry Spencer Go to last post
1 756
Lunar Lava Tubes via Clementine by Bill Bogen
It was once proposed to do an automated search of images from the Clementine probe for evidence of lunar lava tubes. The argument (by Taylor and Gibbs) was...
(Multi-page thread 1 2)
February 28th 04 04:23 PM
by Charles Buckley Go to last post
10 1,519
Lava Tube Teleoperated Explorer (LATTE) by Bill Bogen
Assume we send a teleoperated rover to a likely site for a lunar lava tube (ex; my favorite, Aristarchus Crater) and discover that, yes, there is a segment of...
February 17th 04 03:51 AM
by Bill Bogen Go to last post
0 1,136
Magnetic Mining on the Moon by Bill Bogen
Did any of the Apollo astronauts ever drag a magnet across the regolith to see how much, if any, metal particles might be available? I've seen references to...
(Multi-page thread 1 2)
February 7th 04 08:19 PM
by Ool Go to last post
10 1,066
Moon Base baby steps by Bill Bogen
Two interesting quotes from Prez. Bush's speech: "We will begin the effort quickly, using existing programs and personnel.... We'll make steady progress, one...
(Multi-page thread 1 2 3 ... Last Page)
February 19th 04 12:18 AM
by Dr John Stockton Go to last post
106 7,740
Existing rover available for Moon? by Bill Bogen
Are any back-up rovers available (US, UK, whatever) that might be tweaked slightly (ex; made teleoperable) and sent to the Moon to, say, explore possible lava...
January 20th 04 12:03 AM
by Kaido Kert Go to last post
2 998
Return to Moon with existing launcher? by Bill Bogen
How massive a package can be placed into lunar orbit with which existing launcher?
January 13th 04 01:58 PM
by Bill Bogen Go to last post
0 883
Large airlocks by Bill Bogen
Has much research/design work been done on really large airlock doors? A quick search finds references ranging from real doors around a meter in size to...
September 26th 03 06:23 PM
by Anvil Go to last post
4 1,141
A small, polar-orbiting moon by Bill Bogen
I'd like input from all you orbital mechanics out there as to this concept's feasibility: What if sometime in prehistory, the Earth had captured a Near...
(Multi-page thread 1 2 3)
October 30th 03 02:11 PM
by Bill Bogen Go to last post
22 2,985
Mars Sun-Synchronous Orbit by Bill Bogen
Does Mars offer the possibility of a sun-synchronous orbit? I'm playing with an idea for orbiting reflectors to warm Mars and assist in terraforming. It...
July 19th 03 09:58 PM
by Keith F. Lynch Go to last post
5 1,712
Precession of polar satellites by Bill Bogen
Assuming a satellite in Earth-polar orbit of about 20,000 km radius, would the orbit precess and, if so, how fast? Are there simple, approximate equations for...
November 13th 03 11:29 PM
by Henry Spencer Go to last post
9 1,211
MEX MOI Delta v by Bjørn Ove Isaksen
I see from several articles, eg. http://www.spacedaily.com/news/marsexpress-03n.html That there is an aparent velocity change from 11 Km/s to 9 Km/s in the...
December 5th 03 05:39 AM
by Bjørn Ove Isaksen Go to last post
0 1,035
Same Old Rockets for Bold New Mission ? by BlackWater
(CNN) http://www.cnn.com/2004/TECH/space/04/30/space.rockets.reut/index.html CAPE CANAVERAL, Florida (Reuters) -- Aerospace giants are already prepared to...
May 15th 04 03:26 AM
by Christopher M. Jones Go to last post
6 1,403
Jocket? by blart
Has anyone ever designed/built a hybrid jet-rocket (not a scram jet, but hey if it scrams too then thats neat :) I was thinking something along the lines of...
September 5th 05 12:32 AM
by Damon Hill Go to last post
1 513
"shuttle"/BDB combo and fertilizer? by BllFs6
Hi all.... While Im sure this ISNT a new idea....I havent seen it discussed lately....so here we go... Did some web research awhile ago and found some...
December 1st 03 11:19 PM
by Earl Colby Pottinger Go to last post
4 1,367
Lobbing Passengers for fun and profit? by BllFs6
Hi all.... Just wondering.... If you were putting people in rockets and "lobbing" the passenger capsule from the point of departure to the destination how...
May 18th 04 07:03 AM
by Zoltan Szakaly Go to last post
3 808
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