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From: TerryMoselaol.com
Date: Sun, 4 Sep 2005 21:01:36 EDT
Subject: Death of D. Sinden, Radio & TV

Hi all,
1. Many of you will have met, or know of, David Sinden, who took over the  
Grubb Parsons optical company operations when the company closed. It's with  
great sadness that I have to inform you of his death, after a longish illness,  
last Monday, 29 August. After many many efforts I was finally able to get him 
to  come to Belfast to give a totally fascinating lecture to the IAA a few 
years  ago. 
   He was Chief Optician at Grubb Parsons for many years,  and was 
responsible for many hundreds of optical systems, both lenses &  mirrors, including some 
of the world's largest optics, such  as the 4.2-metre (165-inch) mirror for 
the William Herschel Telescope, the  3.9-metre (153-inch) mirror for the 
Anglo-Australian Telescope, and the new  corrector plate for the 48-inch Oschin 
Schmidt at Mount Palomar.
   He had recently done a lot of work on restoring or  renewing the optics 
for the various telescopes at Armagh Observatory. A  true amateur astronomer, as 
well as a telescope optician sans pareil, he will be  sorely and sadly missed.

2. Special this week, BBC R4: Dava Sobel will read from  her new book, 'The 
Planets', Mon-Fri, 9.45-10.00am and 24.30-24.48am.

3.  Mon/Tue 5-6 Sep,  24.25am, BBC TV: The Sky at Night on the 2DF and  Sloan 
surveys of the night sky.
Clear Skies,
Terry Moseley


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