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Re: [OM] KEH repairs/lens cleaning

Subject: Re: [OM] KEH repairs/lens cleaning
From: Roger Wesson <roger@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 12 Feb 2002 12:22:59 +0000
Paul Wallich wrote:
> 

> A friend/colleague worked briefly at Lick Observtory in northern CA, where
> a generation or so back one or their peons went crazy, took a .45 into
> the prime focus cage and started shooting at the main mirror. Not only
> didn't the mirror crack (foot-thick annealed glass is pretty close to armor
> plate) but after they painted the little holes black some people claimed
> the seeing had actually improved slightly.
> 

Not quite as insane as this story, but another demonstration of how much
damage you can do to optics: apparently the 200 inch Hale telescope on
Mt. Palomar has a roughly dinnerplate-sized chunk missing where a
workman dropped a hammer on it many years ago.

Roger

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