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RE: Live from CERN - CMS got a heart transplant

in #science • 7 years ago (edited)

The photon is definitely massless. That is a theoretical prediction. Even a super strong one, actually.

There are experiments trying to falsify this statement. They have however so fair all failed, and the resulting upper limit on the photon mass is something like 10-18 eV, which is about 1.7 x 10-54 kg. The information can be found in the 2016 Particle Data Group review.

Thanks for your nice comment by the way!

7 years ago in #science by
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     7 years ago  

    I shall sleep better tonigh.
    thanks to you, my steem friend.
    I shall press the Follow button

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       7 years ago  

      Thanks a lot for this! Do not hesitate to come back to me in the case you would have any question! :)

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