You're viewing a single thread.
All comments
107
comments
And gravitational stuff. We kinda know it does it, but not how to do anything about it.
24 0 ReplySurely that's "heavy stuff"?
10 0 ReplyAnd maybe also "big stuff". I suppose those two overlap quite a lot?
7 0 ReplyA nebula is one exception
1 0 Reply
I thought that meant black holes
1 0 Reply
How about something simple: Why does gravity feel the same as acceleration?
5 0 ReplyYou can't feel gravity. What we feel really is acceleration, the acceleration of the earth pushing us up against gravity.
11 0 ReplyBecause of relativistic frames of reference.
Standing on a surface in a gravity well means you're being constantly pushed out of an inertial frame, by not allowing you to follow a geodesic path in spacetime, and the same effect happens under acceleration.
1 0 Reply
107
comments
Scroll to top