X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson
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Sun, 24 Jun 1990 01:44:57 -0400 (EDT)
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To: space+@Andrew.CMU.EDU
Date: Sun, 24 Jun 1990 01:44:28 -0400 (EDT)
Subject: SPACE Digest V11 #563
SPACE Digest Volume 11 : Issue 563
Today's Topics:
Re: HST crazy idea
Re: Aim For The Moon - model rocket contest
Re: Aim For The Moon - model rocket contest
Re: 10 psi overpressure
Galileo Update - 06/20/90
Re: Saturn Rockets
Immune system depression: Isolation or microgravity?
(none)
NERVA & other fission-heated steam engines
GIF files
Rockets to the Moon.
Prize for Rocket to the Moon.
Administrivia:
Submissions to the SPACE Digest/sci.space should be mailed to
space+@andrew.cmu.edu. Other mail, esp. [un]subscription notices,
should be sent to space-request+@andrew.cmu.edu, or, if urgent, to
>Also... has anyone heard about the mysterious circles appearing in the fields
> of farmers in England, with no scientific explanation available? These are
> PERFECT circles, by the way. Not something that could occur by any natural
> means, and there are NEVER signs of any sort of human activity. Witnesses
> usually claim seeing bright orange lights and hearing whining noises.
> Scientists are starting to get VERY serious about these things recently. It
> was on the CNN World Report yesterday. It made me start thinking... are we
> REALLY ready for extra-terrestrial contact?
I am amazed at times when people claim that nature is not capable
or creating perfect circles or straight lines. Granted, you
don't usually see many, rivers don't tend to be too straight...
But fracture lines on some rocks can be straight. Also, as for
circles or spheres, if you don't have chaotic forces operating on
the object, they are MORE likely! Think of a drop of water falling.
If it weren't for air resistance, it would be spherical (unless of
course it is so large you get gravitional tides...)
Hmm, bright orange lights and noises. Ever been in a swamp at
night and see those things of mystical magical origin that lead
travellers to their deaths. They're called willo-wisps. Oh wait,
you mean they have a natural cause? Gas? wow! what a concept.
I suspect that perhaps something similar to this is behind the
circles. When they start cutting perfect copies of the Mona
Lisa into the hay, then it'll be interesting.
BTW, speaking of stuff like this, can anyone offer a good
explanation for spontaneous human combustion?
Greg_d._Moore@mts.rpi.edu
------------------------------
Date: 22 Jun 90 20:00:42 GMT
From: swrinde!zaphod.mps.ohio-state.edu!usc!cs.utexas.edu!news-server.csri.toronto.edu!utgpu!watserv1!maytag!watdragon!watyew!jdnicoll@ucsd.edu (Brian or James)
Subject: NERVA & other fission-heated steam engines
I'm sure most folks are familiar with the NERVA program
[if program isn't overstating]. Were there any other rockets
designed or tested that used a similar idea [heat a reaction fluid
up with a fission power source]? Kingsbury once wrote an article on
something he called 'Dumbo' but he's the only person I seen discussing
any 'fisssion thermal' design other than the NERVA.