Assertion: photon | /r/HasProperty | affected by gravity
Facets:
value: themselves
type: MANNER
value: conversely
type: MANNER
Source sentences:
text: Conversely, photons are themselves affected by gravity; their normally straight trajectories may be bent by warped spacetime, as in gravitational lensing, and their frequencies may be lowered by moving to a higher gravitational potential, as in the Pound–Rebka experiment.