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Comment: Re:Easier way to learn it (Score 1) 358

by pestel (#37238582) Attached to: Ask Slashdot: Math Curriculum To Understand General Relativity?

Negative mass/energy is NOT antimatter, but rather "exotic" matter. At the physics one level, antimatter is just matter w/ the opposite charge of the normal particle. If you find significant amounts of negative mass around, let me know and I'll build you a wormhole. I'll need approximately a galactic mass of said matter....

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