Re:'Dark fluid' with negative mass could dominate the universe
by danbruc on Wednesday December 05, 2018 @06:28PM
(#18613826)
That of course only works because the surfaces of balloons we are used to are always embedded in spacetime. There is however no [good][known] reason to assume that spacetime itself is embedded in any space.
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Re:'Dark fluid' with negative mass could dominate the universe
by OscarCunningham on Wednesday December 05, 2018 @10:58PM
(#18615273)
I've always thought this would be an interesting experiment. Assume that spacetime does live in a higher dimensional space, and try to arrange masses so that spacetime is forced to intersect itself. See if anything interesting happens.
Of course this probably requires some stellar engineering.