panzuulor t1_isk794f wrote
No, there is no pull. Nothing pulls anything. Space is warped and that’s why there’s an effect.
BridgeOnColours t1_iskb10e wrote
The actual answer. Mass warps space, that warp creates a movement. Two massive objects far enough of eachother warp space too little in regard to eachother to overcome other forces that are unto them, eg the expansion of space
FatiTankEris t1_iskh1ut wrote
Which then aren't really forces but same geometric effects as gravity? I thought that gravity is caused by motion through time combined with spacetime geometry. Kind of like a treadmill on which we roll, and if it curves forces appear. It doesn't make much intuitive sense so far to me, so the only way to understand is to go to math, and the wrong trampoline analogy only makes it worse.
BridgeOnColours t1_iskpw6m wrote
Exactly, they aren't really forces but features/effects of how mass and spacetime interact with eachother. Spacetime is a field, with which mass interacts with, being a mass of collection of forces if it's own.
panzuulor t1_isl3wwz wrote
I conclude that every atom warps spacetime and that’s why it can have a combined effect over Lightyears in galaxy clusters. But then I don’t understand why it’s so hard to combine gravity with quantum mechanics?
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