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+ - Does antimatter fall up? Experiment could provide the answer.-> 3

Submitted by Doug Otto
Doug Otto (2821601) writes "Scientists at CERN ask the question:
But one interesting question remains unanswered: does antimatter possess antigravity, experiencing a repulsive force when matter experiences attraction? And, even if antimatter experiences plain old gravity, does it behave in exactly the same way as matter does? And if it does fall up, could a dog see it?"

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Does antimatter fall up? Experiment could provide the answer.

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  • I mean what I know about quantum physics tells me it doesn't, that gravity happens at a level more fundamental than quark arrangement, but I still always wondered since it always made sense for gravity to be backwards anyways. Hopefully they find out.

    • by iggymanz (596061)

      we don't even know yet whether gravity has waves and/or is quantized. plenty of coming large experiments will try to detect the waves. we may never be able to detect if it is quantized.

  • Photons fall down despite having no mass [wikipedia.org]. Unless there's such thing as an anti-photon, I don't see any reason for the ordinary mass of matter to repel antimatter.

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