Re: [ATM] Subject: light weight mirrors--mylar!

["Mitchell R" <funnybone101@embarqmail.com>]

-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf Of
Christopher Todd
Sent: Sunday, November 11, 2007 7:20 PM
To: 'ATMLIST'
Subject: Re: [ATM] Subject: light weight mirrors--mylar!

Has anyone ever considered using some kind of metal film and deforming it
with electromagnets?  You can imagine the possibilities, being able to vary
the strength of the magnetic field by varying current, and using many
relatively small electromagnets, would give you lots of flexibility.  The
key, obviously, would be to find the right material for the film.  Alas, I
am not a metallurgist or engineer, so I won't be the one to try this.  I'm
sure someone else must have thought of this before, so I'm curious if
anything ever came of it.

Chris

I had thought of something crazy like that but figured the magnets would
have to be placed as accurately as the surface of the mirror you wanted. Or
you could just do a rim of them o something of that sort. A ring would sort
of pull evenly and let is sag in the middle?

Mitch

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