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davepamn davepamn
 

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 M¢25  Funded By Mahalo ? |  October 07, 2009 11:15 PM

How is Anti-hydrogen affected by gravity?

Will gravity push anti-hydrogen away?
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opher opher
 
 October 08, 2009 01:56 AM
Anti-hydrogen has the same mass as hydrogen. It will be affected by gravity the same way hydrogen is.
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• It does not seem intuitive that anti-hydrogen will have the same mass as hydrogen. Will you explain how scientist how anti-hydrogen has mass?


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davepamn davepamn
 
October 08, 2009 03:38 AM
If shoot anti-hydrogen down a tube and measure its fall or rise then you could confirm gravities affect. Anti-matter is believed to have an opposite gravity affect, but it has not be confirmed.

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opher opher
 
October 08, 2009 03:02 PM
No need. There is ample experimental evidence that the mass of anti-particles is the same as their matter-particle analogs. For example, the mass of a positron is identical to the mass of an electron, and the mass of an anti-proton is the same as the mass of a proton. Thus, an anti-hydrogen atom, comprised of an anti-proton and an anti-positron is identical to the mass of a hydrogen atom comprised of a proton and an electron.

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opher opher
 
October 08, 2009 03:04 PM
Sorry. I meant anti-proton and positron making up an anti-hydrogen atom, not anti-proton and anti-positron, of course. There is no term 'anti-positron' as that would simply be an electron.

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