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Artificial sunlight? by Christopher
In several experiments conducted by NASA and by the Russians plants were grown indoors using an artificial light. What type of light was used that produces...
(Multi-page thread 1 2)
December 27th 03 03:07 PM
by Christopher Go to last post
13 583
Improved Specific Impulse Rocket Engines by Mike Miller
Looking only at the vacuum specific impulse of plain hydrogen-oxygen rockets, is it possible to advance their specific impulse to 500, or even 520? For...
(Multi-page thread 1 2)
December 24th 03 07:50 AM
by Christopher M. Jones Go to last post
12 766
Anniversary of sorts just past by George William Herbert
I had thought I remembered that the first posts in the then-brand-new sci.space reorg groups went out in early January 1994, but reviewing Google records found...
December 24th 03 05:49 AM
by Josh Gigantino Go to last post
6 256
Cheap, easy to handle fuels/oxidizers by Earl Colby Pottinger
John Cramer's latest breakthru is adding an alcohol to 50% peroxide to make a cheap, easy to handle, easy to buy mono-propellant for his rockets. Does anyone...
(Multi-page thread 1 2 3 ... Last Page)
December 23rd 03 02:04 AM
by MONTMACH Go to last post
41 1,753
Powered vs gliding reentry - weight penalty by Earl Colby Pottinger
(MattWriter) : Any spacecraft designed to return to Earth under control (as opposed to ballistic reentry) has to carry a substantial...
December 23rd 03 01:42 AM
by Earl Colby Pottinger Go to last post
8 369
RLV physicaly impossible ? by Paul Spielmann
I am really amazed by all these optimistic people trying to do rlvs and i belive in these peoples cause! however it strikes me that these people all seem a bit...
(Multi-page thread 1 2 3)
December 22nd 03 02:29 AM
by Earl Colby Pottinger Go to last post
22 634
Peroxide biprop ignition by Oren Tirosh
Some methods I've seen mentioned for peroxide biprop ignition a Decompose the peroxide with catalyst pack. Pyrotechnic igniter in the chamber. Dissolve...
(Multi-page thread 1 2 3)
December 16th 03 04:11 AM
by Allen Meece Go to last post
20 965
white knight: air-launched sst by gg
Would a supersonic jet the size of the spaceship-one gain much performance by being launched from underneath the white-knight from 48,000ft? Toby
December 16th 03 12:23 AM
by gg Go to last post
4 381
Improved Isp Rocketry II by Mike Miller
Two questions this time: 1) Is it possible to get kerosene-LOX or propane-LOX to 395Isp? I've seen numbers around 360 on www.astronautix.com . 2) How...
December 15th 03 01:44 PM
by Mike Miller Go to last post
6 780
This is the most important CATS post ever! by Andrew Nowicki
The technology described in this post has not been tested, but it looks trivial when compared to rocket launchers, and it may reduce the cost of space access...
(Multi-page thread 1 2 3)
December 15th 03 12:59 PM
by Jan C. Vorbrüggen Go to last post
21 721
sci.space.tech and sci.space.science Frequently Asked Questions (FAQ) by s.s.t moderator
This is the weekly Frequently Asked Question (FAQ) posting for sci.space.tech and sci.space.science . It is crossposted into sci.space.policy to explain...
December 14th 03 01:01 PM
by s.s.t moderator Go to last post
0 335
Anniversaries by Oren Tirosh
As everyone knows, in four days it will be the 100th anniversary of the Wright brother's first powered human flight. Tomorrow, however, will be a somewhat...
December 13th 03 10:03 PM
by Oren Tirosh Go to last post
0 255
Astrometry by Roger Stokes
I understand that the large and expensive Gaia astrometry satellite will achieve very accurate stellar parallaxes from (I believe) the L2 point - which still...
December 12th 03 11:01 PM
by Henry Spencer Go to last post
2 266
Delta IV Heavy - FRF? by Reed Snellenberger
I haven't seen anything posted on this -- has a flight readiness firing been scheduled for the Heavy before it launches? -- Reed
December 12th 03 04:19 PM
by Reed Snellenberger Go to last post
0 402
Satellite to Satellite communication ? by Norris Watkins
Hello: 1. When you make an international phone call - say from NY to China - how does the voice data travel ? Does it have to be send to the satellite and then...
(Multi-page thread 1 2 3 ... Last Page)
December 12th 03 11:06 AM
by Pascal Bourguignon Go to last post
46 1,735
Space radiation and tourism beyond LEO by Vincent Cate
I got an account on SPENVIS at http://www.spenvis.oma.be/spenvis/ and have generated some radiation shielding data and graphs. You tell it what orbit apogee...
(Multi-page thread 1 2)
December 11th 03 08:49 PM
by Mike Miller Go to last post
14 666
Simulating Van Allen Particles by Vincent Cate
I added the ability to simulate a charged particle moving in the Earth's magnetic field to my simulator. This lets you look at the motion of particles in the...
December 11th 03 06:57 AM
by Matthew Montchalin Go to last post
8 383
Space craft operating system programming language? by Christopher
The recent post regarding os say it is Flight Linux. Are the spacecraft systems computer programs written in C? Christopher +++++++++++++++++++++++++ "Kites...
December 10th 03 03:49 PM
by Christopher Go to last post
8 864
Beagle 2 landing sequence - how? by Abdul Ahad
With Beagle 2 separation from Mars Express and entry, descent & landing at Isidis Planitia just 2 weeks away... I just have a couple of technical questions for...
December 10th 03 12:55 PM
by Doug Ellison Go to last post
2 656
hydrogen dissolved in hydrocarbons by Roger Stokes
I googled recently that hydrogen will dissolve in hydrocarbons such as decane when under pressure (and I can't find it again now!). It was unclear to what...
December 9th 03 11:02 PM
by Iain McClatchie Go to last post
6 261
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