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0 |
1,250 |
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Serious propulsion by
Allen Thomson
Probably such things have been hashed out before, but allow me to
solicit the opinion of the readership on this question that has
come up in some off-line...
( 1 2 3 ... Last Page)
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33 |
3,450 |
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Sun angle and spysats by
Allen Thomson
There's a cute illustration of the tendency for optical spysats
to have orbits optimized for, among other things, sun angle and
time of day at...
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December 6th 04 04:00 AM
by Hamish
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5 |
1,373 |
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0 |
893 |
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Reaction Wheel by
Amir Hosein Tavakoli
Hi
Can anyone send me the real (or at least the range of it)
charecteristics of the electerical motor of a real reaction wheel
(such as electerical resistance...
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1 |
1,226 |
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Papers about electronic devices by
Andreas Kern
Hi.
I've already used google to find an answer,but the links weren't very
helpful,that's why I'm asking he
Are there any good books or papers about the...
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1 |
728 |
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Color calibration by
Andres del Pozo
Does anyone know what it is happening with the calibration of Spirit's
cameras? Please, watch these photos:
The first is of the rock called...
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1 |
975 |
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Completely simulated aerospace design by
Andrew Gray
Not sure to what extent this sort of thing is news, but some might be
interested: Dassault have built and produced an aircraft without
building a single...
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1 |
904 |
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X-Prize Design Concepts by
Andrew Gray
Afternoon all.
The current foremost contender for the X-Prize is, of course, Scaled
Composites - expected to formally announce soon, I believe - which uses
a...
( 1 2)
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13 |
883 |
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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...
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4 |
1,746 |
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Scram uses? by
Andrew Higgins
Richard Schumacher wrote in message ...
I was about to write "cruise missle", but hell: why...
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0 |
921 |
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Levitating geomagnetic buckytubes by
Andrew Nowicki
Fifteen years ago Richard Moss proposed to
levitate a superconductive cable in the Earth
magnetic field. This idea does not make sense
because no existing...
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0 |
589 |
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Errors in Hubble report by
Andrew Nowicki
Title of the report:
"Assessment of Options for Extending the Life of
the Hubble Space Telescope: Final Report (2005)"
URL:...
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2 |
995 |
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Curtain cooling with molten salt by
Andrew Nowicki
The interior of liquid rocket combustion chamber
is usually cooled with the so called "curtain cooling,"
which is a spray of hydrocarbon fuel. The fuel...
( 1 2)
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10 |
1,062 |
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3 |
726 |
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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...
( 1 2 3)
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21 |
2,265 |
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Rapid manufacturing by
Andrew Nowicki
Oops... The Arcam EBM S12 fabrication speed
is only about 17 cubic millimeters per second,
but its scanning speed is 1 km/s. A much more
powerful electron gun...
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0 |
481 |
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Cathodic protection of spacecraft by
Andrew Nowicki
Good news: inert metal compounds such as platinum coated
titanium rods are sometimes used as the anodes. They
do not corrode in marine environment, so they...
( 1 2)
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10 |
1,400 |
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Cheap method to cool the earth by
Andrew Nowicki
This topic was mentioned in sci.space.policy
(How to Cool a Planet), but sci.space.tech is a
better forum for serious technical debate.
The review of nearly...
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July 11th 06 06:35 PM
by meiza
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5 |
1,294 |
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Hydrogen peroxide helicopter by
Andrew Nowicki
The rocket launchers and their payloads have
streamlined shape to reduce their aerodynamic drag.
Large, low density payload, such as a large telescope
or a...
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0 |
1,272 |