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Re: [ATM] 40" mirror

To: "Jeff Anderson-Lee" <jonah@eecs.berkeley.edu>
Subject: Re: [ATM] 40" mirror
From: "Jerry B. Hillman" <JBHillman@ev1.net>
Date: Thu, 23 Dec 2004 16:25:37 -0600
Cc: The Amateur Telescope Makers List <atm@atmlist.net>, Jay Kirkland <jaykirk2@compusmart.ab.ca>
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Hi Jeff,
Shaving an inch off would save 100 pounds.  It would also make it 1/13
ratio. That is way better than the 1/22 ratio that my 16.5" mirror was (at
the edge) but still dealing with the difference between 300 and 400 isn't
going to matter that much.  I can't lift it regardless so it is still an
engineering problem.

Clear skies, Jerry

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References:
- [ATM] 40" mirror
  - From: Jay Kirkland <jaykirk2@compusmart.ab.ca>
- Re: [ATM] 40" mirror
  - From: "Jerry B. Hillman" <JBHillman@ev1.net>
- Re: [ATM] 40" mirror
  - From: Jeff Anderson-Lee <jonah@eecs.berkeley.edu>

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