Assertion: photon | /r/CapableOf | carry momentum
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Source sentences:
text: However, before Compton's experiment showed that photons carried momentum proportional to their wave number (1922), most physicists were reluctant to believe that electromagnetic radiation itself might be particulate.
text: Photons do carry energy and momentum, however, and, in transmitting these properties between particles, they produce the effects known as electromagnetism.