island Posted April 12, 2005 Share Posted April 12, 2005 Negative gravity, Hmm, I will consider the idea... 1) It's not negative gravity, but it does have an antigravity effect if the universe is expanding. This is not the case if it is contracting or static. 2) The "idea" is supported by the most conservative approach to the cosmological constant, as well as any other theory that's worth having, so yeah, you might want to "consider the idea"... lol ... of Einstein, et. al... with a little more than idle curiosity... The speed of the expansion is measured by the redshifts of the light from distant stars. Link to thread "Space expanding FTL": http://www.scienceforums.net/forums/showthread.php?t=9693 Quote from a small part of a good post by Martin in that thread: And here are a link to Ned Wright's own online cosmology calculator: http://www.astro.ucla.edu/~wright/CosmoCalc.html Yeah, okay... the rate of expansion beyond the Hubble distance is necessarily FTL, but no violation of SR. Link to comment Share on other sites More sharing options...
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