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Old 08-26-2015, 12:33 PM   #45
David Johnston2
 
Join Date: Dec 2007
Default Re: [Spaceships] Heat Signature, Cloaking Device, and Stealth Hull

Quote:
Originally Posted by safisher View Post
And smart folks were assuming all the things that were "science fiction" were impossible, until...every single time...innovations caused paradigm shifts which the average scientist has always thought was impossible.
Hardly every single time. Or even most of the time.
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