alt Hacker NewsMoving objects don't emit gravitational waves though. They have to be orbiting.
Replies
actionfromafar • yesterday at 10:16 AM
1. Isn't everything orbiting something?
2. If a black hole passed us by, no gravitional wave?
Moving objects don't emit gravitational waves though. They have to be orbiting.
1. Isn't everything orbiting something?
2. If a black hole passed us by, no gravitional wave?
First, that claim is patently false. Two objects with size accelerating directly towards each other (i.e. zero orbital angular momentum hence zero "orbit") will produce waves. A moving object will produce detectable changes in gravity so arguing about "waves" in the context of atomic clocks detecting gravity is irrelevant.