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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...
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6 |
979 |
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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...
( 1 2)
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16 |
1,934 |
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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....
( 1 2)
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10 |
960 |
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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...
( 1 2 3)
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21 |
2,012 |
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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...
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832 |
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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 =...
( 1 2)
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10 |
1,710 |
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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...
( 1 2 3)
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21 |
2,120 |
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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...
( 1 2 3)
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5,701 |
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February 12th 05 06:11 AM
by zoltan
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1,320 |
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February 26th 04 05:29 PM
by PP
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1,260 |
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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...
( 1 2)
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10 |
1,878 |
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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...
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0 |
1,015 |
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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...
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1,041 |
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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...
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1,367 |
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3 |
812 |
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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...
( 1 2)
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13 |
1,245 |
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Orbit question by
Antti Jarvi
"KFH" kirjoitti viestissä
...
I have been thinking...
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1 |
1,347 |
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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...
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1 |
572 |
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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...
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3 |
1,332 |