Satya's blog - Time and gravity

Sep 21 2004 13:01 Time and gravity
I find it interesting that there are two physical quantities that we cannot control: time and gravity. By gravity I mean the curvature in spacetime introduced by matter, and not acceleration. Though (I think) relativity says they're the same thing, I think they're not -- you can't produce artifical gravity except by acceleration.
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Tag: hmm