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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...
August 7th 04 09:17 AM
by Narasimham G.L. Go to last post
6 969
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
Rapid manufacturing by Andrew Nowicki
Rapid manufacturing (also known as direct manufacturing) is an additive fabrication technology that makes complex parts automatically from a CAD STL file....
(Multi-page thread 1 2)
February 25th 05 08:45 AM
by Andrew Nowicki Go to last post
10 950
Vapor as rocket propellant and coolant by Andrew Nowicki
The cheapest rocket launcher that I can imagine has a pressure-fed, liquid fuel engine and self pressurized propellant tanks. The self pressurized tanks...
(Multi-page thread 1 2 3)
July 12th 04 12:26 PM
by Mike Miller Go to last post
21 1,935
Levitating geomagnetic buckytubes by Andrew Nowicki
Correction: There are 3 kinds of buckytubes: armchair, zigzag, and chiral. Armchair buckytubes are ballistic conductors. Zigzag and chiral buckytubes are...
June 13th 04 01:41 PM
by Andrew Nowicki Go to last post
2 826
Large rocket engines cannot be reusable by Andrew Nowicki
Large rocket engines cannot be reusable because they are damaged by large Reynolds number. The Reynolds number = Re = V*D*S/N whe V = gas velocity D =...
(Multi-page thread 1 2)
December 2nd 05 08:05 AM
by Heinrich Zinndorf-Linker (zili@home) Go to last post
10 1,694
reentry cavitator by Andrew Nowicki
The Russian Shkval (Squall) torpedo is built like a rocket. It flies underwater in a cavity made by a so called cavitator mounted on its nose. The...
(Multi-page thread 1 2 3)
November 11th 03 09:15 AM
by Derek Lyons Go to last post
21 2,085
Small, cheap, reusable rocket launcher by Andrew Nowicki
The rocket launchers are not economical because they are not reusable. When they reenter the atmosphere, their slender bodies soak up so much heat from...
(Multi-page thread 1 2 3)
September 3rd 06 12:29 PM
by Allen W. McDonnell Go to last post
20 5,562
Selective Laser Sintering/Hot Isostatic Pressing by Andrew Nowicki
This mature fabrication technique is perfectly suited for making complex metal parts, including CHEAP ROCKET ENGINES! All you have to do is to make the CAD...
February 12th 05 07:11 AM
by zoltan Go to last post
4 851
Dextre telerobot comes back by Andrew Nowicki[_2_]
http://news.discovery.com/space/robot-satellite-repair-nasa.html
May 3rd 10 03:55 AM
by Greg D. Moore \(Strider\)[_949_] Go to last post
4 1,315
ASCII to BINARY help needed (Satellite tracker project) by Andrew Rich
Howdy, I have a satellite tracking program that outputs from AZ,1-359,EL,1-90 in ASCII. I am just wondering how I can convert this to something meaningfull...
February 26th 04 06:29 PM
by PP Go to last post
3 1,229
Delta IV EH? by Andrew Tubbiolo
Heinrich Zinndorf-Linker wrote: Am 26 May 2003 17:47:14 GMT schrieb "Jim Davis": Oh, that could be done with a never-built Russian...
(Multi-page thread 1 2)
July 22nd 03 03:49 AM
by atparke Go to last post
10 1,860
Engine Kits or Plans? by Andrew Tubbiolo
Hi All: I now have what I think is a fairly complete set of data ack hardware from which to build up a control system. Basically A/D's that move their data...
July 25th 03 06:19 AM
by Andrew Tubbiolo Go to last post
0 1,013
Meteoroids in the main asteroid belt by Andy Lee Robinson
On Jun 4, 3:32 am, Alain Fournier wrote: Space debris in LEO is somewhat of a problem. But I'm wondering about the space debris...
June 4th 09 12:16 PM
by Andy Lee Robinson Go to last post
0 1,035
Mopping up Space Junk by Andy[_3_]
I have a few ideas to throw into the global pot for consideration. After their useful lives, some satellites can deorbit with chemical or ion rockets or...
June 13th 09 04:00 AM
by Alain Fournier[_2_] Go to last post
7 1,358
Application of trans-stage for a recoverable rocket? by Anthony Frost
In message David Spain wrote: In this scenario, a smaller trans-stage is...
March 3rd 14 11:17 AM
by David Spain Go to last post
3 771
Solar panel/mirror question by ANTIcarrot
How much energy can mirros focus onto a solar panel before it begins to melt? It's an SSPS based question. Could large light-weight mirrors and small solar...
(Multi-page thread 1 2)
July 13th 04 04:35 PM
by Parallax Go to last post
13 1,234
Orbit question by Antti Jarvi
"KFH" kirjoitti viestissä ... I have been thinking...
June 6th 04 09:44 PM
by Bob Martin Go to last post
1 1,323
Second launch of Spaceship 1 by Anvil
Watching the second launch of Spaceship 1 and thinking on the roll couple that begins as the rocket is fully started and seems to get a step increase crossing...
October 4th 04 03:53 PM
by Chris Phoenix Go to last post
1 568
Very basic launch question by Anvil
LBorth: I understand that the FAA issues launch licenses for rockets in the US, but is their an international body that governs launches to space? For...
September 4th 03 09:58 AM
by News Admin Go to last post
3 1,314
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