08-30-2016, 12:52 AM | #21 |
Join Date: Mar 2008
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Re: Brainstorming: Incorporate Dark Matter in a campaign
Twistor by John G. Cramer uses multiple universes that only interact such that our gravity is the sum of all the universes mass. He is a university physics professor so the book is fairly hard SF.
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Tags |
campaign ideas, physics |
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