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A comment on 'Dark fluid' with negative mass could dominate the universe. Parent comment

Re:'Dark fluid' with negative mass could dominate the universe by jon_richards on Wednesday December 05, 2018 @09:37PM (#18614903)
It would be perpetual motion, but momentum and energy would remain the same. Both depend on mass (so negative mass accelerating creates negative momentum and energy).
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Re:'Dark fluid' with negative mass could dominate the universe by skykooler on Thursday December 06, 2018 @09:32AM (#18618304)
That's an interesting point. Thank you!
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