A ten meter diameter pinhole?
For green light that must be an optimum effective focal length of 50,000KM?
31,000 miles?
No comprende.
----- Original Message -----
From: "George L Smyth" <glsmyth@myway.com>
To: <pinhole-discussion@spitbite.org>
Sent: Monday, October 04, 2004 3:52 PM
Subject: [pinhole-discussion] Big Pinhole!
>
> http://www.guardian.co.uk/space/article/0,14493,1318911,00.html
>
> Anyone made one that large? <g>
>
> Cheers -
>
> george
>
> -----
> http://www.GLSmyth.com
> http://DRiPInvesting.org
>
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Received on Sun Oct 10 13:12:01 2004
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