[119065] in Cypherpunks
Re: Thieves steal six ballistic missiles in Poland
daemon@ATHENA.MIT.EDU (Sean Roach)
Thu Oct 14 00:45:09 1999
Message-Id: <3.0.6.32.19991013232754.008697f0@mail.intplsrv.net>
Date: Wed, 13 Oct 1999 23:27:54 -0500
To: cypherpunks@algebra.com
From: Sean Roach <roach_s@mail.intplsrv.net>
In-Reply-To: <4.1.19991013182022.04a5fb10@popserver.com21.com>
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Reply-To: Sean Roach <roach_s@mail.intplsrv.net>
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Thanks for the info.
Could the mixture be tumbled in a drum with baffles, (like a clothes
dryer), to mix to that shake consistancy? That would save me from
having to stand over the mixing container with a wooden spatula
wondering when I was going to suffer from ringing of the ears and a
scorched face and arm.
If I ever get around to this I'll want to do as much by remote
control as possible. Less chance of getting myself blown up.
At 07:42 PM 10/13/99 -0700, Steve Schear wrote:
...
>Another interesting project I've written about on this list is an
>amateur cruise contest. Vehicles could run a closed or open course
>to a target, much as pylon racers. Minature jet engines have
>recently become available, although they are still rather pricey.
>If the MIT microjet project ever bears fruit we could see many
>interesting amateur and hobby applications
>
I was hunting around the internet for plans to a decent jet engine a
couple years ago and ran upon a design that purported to use sound,
or rather the oscillation of three tuned tubes, nested, that also
served as the air intake, to compress the air. Evidentally the thing
worked off propane and was supposed to produce an incredible thrust
for its size and weight.
Supposedly, the peaks of the three tubes vibrations formed some sort
of peristolic wave. The intake was at a 90 degree with the line of
the motor.
I can't say for sure if it worked. I balked at the price that was
being asked for the plans. Nor do I remember the URL.
At 10:27 PM 10/13/99 -0500, Jim Choate wrote:
>This stuff is VERY DANGEROUS, it is so easy to kill oneself (e.g.
>forgeting to wipe the threads or seals with a cold moist rag). It is
>STRONGLY suggested that you pass this stuff right on by.
Noted. If I do it, I'll get some well tested instructions first.
Then wire up everything to be mixed and poured OVER THERE. Something
about telepresence seems so inviting when the alternative could be
the loss of life or limb.
...
>Both NAR and Tripoli, as well as a search at Google on experimental
>rocketry, will point you to many more references. MIT has a very
>nice webpage that is a copy of a venerable design doc that describes
>the steps for making liquid fuel motors.
Seen it. Whoever wrote it seemed to get off on the noise they make,
not saying much about the horsepower at all. I had the whole book
mirrored on my home PC at one point or another. Pre-CD-E. 640M hard
drive. Had to clear it to make room for more important stuff.
Sean Roach
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