Assertion: photon | /r/HasAspect | mass
Facets:
Source sentences:
text: In the case that the photon has mass, the mass term 1/2m2A
text: We all know Einstein's rather famous mass-energy equivalence, E=mc², and it's fairly obvious that photons have energy, so they must have mass, right?
text: Theoretically, if photons did have mass we would see deviations from the Coulomb inverse square law.