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F2/H2 vs H2/O2 specific impulse: why fluorine is higher ? by Henry Spencer
In article , James Wentworth wrote: Didn't Vanguard's first stage use LOX/UDMH? -- Jason No, it was a...
July 14th 03 04:10 PM
by Henry Spencer Go to last post
0 1,443
can earth based lasers and electromagnetic tethers by Ian Stirling
Tony Rusi wrote: put the ISS in the inclination as the moon? Yes, (assuming you meant "same inclination") but there would be...
July 14th 03 05:54 PM
by Tony Rusi Go to last post
7 1,509
Specific heats at high pressure by Iain McClatchie
I just got the book "Mechanics and Thermodynamics of Propulsion", mostly on the recommendations found in the sci.space.tech archives. I turned to Appendix 2...
July 14th 03 07:55 PM
by Ian Woollard Go to last post
4 1,809
Sun-sync orbit? by MattWriter
The DARPA solicitation for the new FALCON small launch vehicle program specifies the requirement to put a satellite in "sun synchronous orbit" at 450 km at "79...
July 14th 03 10:31 PM
by Henry Spencer Go to last post
1 1,184
Prices on Ion Drives or Hall Thrusters? by Vincent Cate
Heinrich Zinndorf-Linker wrote in message ... OK, buy them in Germany, instead. The Germans will...
July 14th 03 11:52 PM
by John Schilling Go to last post
3 4,171
Could Columbia have been Saved? by Andrew Gray
In article , Joann Evans wrote: Second, even if it did, the crew would have to know or suspect that there was a...
July 15th 03 08:29 PM
by Ken S. Tucker Go to last post
4 1,734
Asteroid Hunters Discover Near-Earth Object with New Camera by Ron Baalke
MEDIA RELATIONS OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. ...
July 16th 03 01:03 AM
by Ron Baalke Go to last post
0 1,923
connection between rotating and nonrotating sections by Joe Pfeiffer
(Henry Spencer) writes: In article , Richard Lamb wrote: A C Clarke described a...
July 16th 03 03:30 AM
by Harmon Everett Go to last post
5 1,244
Interstellar Missions by Abdul Ahad
When Pioneer 10 eventually passes Aldebaran - projected to be in around 2 million years time (!), do we know how "close" the flyby is likely to be...not that...
July 16th 03 03:46 AM
by Harmon Everett Go to last post
3 1,577
CATS? by Joann Evans
Mike Swift wrote: NASA working to promote the military, ha ha. They took the DC-X only because it was forced upon them, Not true. Dan Goldin used...
July 16th 03 04:17 PM
by Len Go to last post
2 1,382
AVR/PIC uC to calculate 0-100kph and 100-0 using 2D accelerometer by Adam Bradley
Hi all! I'm mucking about with an AVR/PIC uC and want to choose a suitable accelerometer (probably from Analog Devices - but please let me know of any...
July 16th 03 11:20 PM
by Ian Stirling Go to last post
1 1,336
H2O2 catalyst packs... by Richard Nienhuis
I noticed the bail type catalyst packs that the Armadillo team are using. Apparently the coatings just blow right off. Electroplating might be the answer but...
July 17th 03 12:28 AM
by Cameron Dorrough Go to last post
2 1,551
Rockets by George Kinley
Hi, if there is no Atmosphere, where do rockets that go in Space get thrust from
(Multi-page thread 1 2 3 ... Last Page)
July 17th 03 01:18 AM
by Joann Evans Go to last post
37 3,268
What is the highest ISP for a hybrid ? by MONTMACH
Hello Group Just curious, what is the highest ISP achieved by a hybrid, not theoretical or in a vaccum, just real sea level results? lets say for Nitrous...
July 17th 03 04:36 PM
by MONTMACH Go to last post
0 1,470
Tracking an desending spacecraft from space? by Christopher
I know that the plasma halo cause by atmospheric friction cuts out radio contact from a returning space craft i.e. the Shuttle, Apollo Comand module,...
July 18th 03 01:56 PM
by Jorge R. Frank Go to last post
2 1,135
Space Engineering Helps Drill Better Holes In Planet Earth by Ron Baalke
ESA News http://www.esa.int 18 July 2003 Space engineering helps drill better holes in planet Earth Expertise derived from working on the joint NASA-ESA...
July 18th 03 07:23 PM
by Ron Baalke Go to last post
0 1,804
Stronger Steel by sanman
Since I happened to be posting stuff on Pulse Detonation Engines, which heavily tax their materials due to the terrible cylical mechanical and thermal stresses...
July 18th 03 08:55 PM
by sanman Go to last post
0 1,427
3 Lensjet by johnhare
At home I don't actually number the dozens of possible configurations of the lensjet. I'm doing it here to keep track in case anyone gets interested. Most of...
July 19th 03 02:46 PM
by johnhare Go to last post
0 1,535
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
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...
July 20th 03 12:03 PM
by s.s.t moderator Go to last post
0 1,297
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