3 ms·
Light bends and travels slower in matter because it has (QM) interactions with the particles of the matter. Gravity is not involved. Light bends due to gravity
by Arnavion 9y ago
Light bends and travels slower in matter because it has (QM) interactions with the particles of the matter. Gravity is not involved.
Light bends due to gravity because gravity is the bending of spacetime so that light's straight line path is curved. QM is not involved.
- ge96 9y agoI still think that's nuts. Isn't the "space" "straight" as seen by light, but the light/space is curved so it does bend... man... so maybe the "alcubere drive" we wouldn't feel the compression of our bodies/expansion.
- greglindahl 9y agoWhen you're being stretched or compressed by GR, you don't feel it at all in your frame of reference.