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Old 03-06-2014, 12:56 AM
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Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,484
Quote:
Originally Posted by Shiraz View Post

Lots of questions, no obvious answers. regards ray
Perhaps this will answer some:

http://www.sbig.com/about-us/blog/differential/

Alan's analysis I believe is quite thorough.
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