- #1
jartsa
- 1,577
- 138
Why is there a large Shapiro delay when a light beam passes a black hole?
Coordinate velocity of the beam is slowed down in a gravity field, except for the straight down component of the coordinate velocity?
Some part of the trip takes a long time anyway.
Coordinate velocity of the beam is slowed down in a gravity field, except for the straight down component of the coordinate velocity?
Some part of the trip takes a long time anyway.