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RE: Napkin Drawing

Robert Crawley
Wed, 30 Oct 2002 10:30:52 -0800

An easier solution might be to climb up in a water tower in the dead of
winter. I think they freeze on top.

Robert Crawley
Elite Precision Fabricators, Inc.
Programming
(936) 449-6823

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:owner-europa@;klx.com]On Behalf Of Schmidt
Mickey Civ 50 ES/CC
Sent: Wednesday, October 30, 2002 11:36 AM
To: [EMAIL PROTECTED]
Subject: RE: Napkin Drawing


My idea of bolting culverts together was assuming we'd use less than 100' of
ice.  The thick galvanized culverts attach end to end with a broad steel
band with matching corrugations (or they used to many years ago.) I would
imagine that the "tower of culverts would have to be attached to the side of
a building for the height you want, then filled with material for the test.
I think it would be wise to support the culverts, against a building or a
tower. We should leave a space beneath the bottom culvert to extract the
ICEPICK or construct a "door" or access hole in the side of the bottom
culvert.

Maybe we could work with a corporate sponsor, who has a tall building and a
shaded north side of a building we could assemble our ice tower. Being a
north side would keep it out of the sun light. Maybe a college instructor
with graduate assistants could be coerced into helping. Do we have a College
Professor/Instructor in the group?

Mickey D. Schmidt, Dir.
USAF Academy Planetarium
Center for Educational Multimedia
USAF Academy, CO 80840


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:JHByrne@;aol.com]
Sent: Tuesday, October 29, 2002 4:59 PM
To: [EMAIL PROTECTED]
Subject: Napkin Drawing


Joe Latrell came up with a napkin drawing for a carboard prototype, of the
sort that could be tested in a couple of blocks of ice.  This initial
prototype (let's call it IcePIC i) has a wire coil internally:  is this to
play out behind to respresent the transponders, or to help control the
model?

Really, we could simply use something like an electric hair curler for this
demonstration of our prototype.

I do have a question about the ice-filled culvert route:  how do we add
sections to the pipe?  A 20' culvert filled with ice and gravel is far too
heavy to lift and put another section under it.

Funny, that after all this, we're back to calling it IcePIC... however,
there's still the issue that Julie raised:  do we need to distinguish this
working model, from concepts more directly related to the Europa probe?

-- John
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