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Originally posted by WitnessFromAfar
My take on gravity is this, pulling does not exist in physics. Newton never described how pulling could work, nor did Einstein. Pushing works rather well though, and is described as an external force applied to an object (either at rest or in motion).
Originally posted by nablator
Someone would have noticed by now that water pressure in submarines increase with depth less than expected.
Originally posted by WitnessFromAfar
reply to post by nablator
No offense taken Nablator, it's actually something that fascinates me, and something that Humans don't really have figured out (gravity...)
I'm glad you're here in this thread, because I'd like to ask you this question.
How does pulling work in physics?
Originally posted by Arbitrageur
To use an analogy outside gravity, think of a car on a flat road. The car is out of gas and we want to move it forward to a gas station down the street. Look at 3 cases:
1. a person behind the car pushes the car forward with a force of 50 pounds.
2. a person in front of the car pulls the car forward with a force of 50 pounds.
3. A person behind pushes with a force of 25 pounds, and a person in front pulls with a force of 25 pounds for a net total force of 50 pounds.
Will the net effect of any of these 3 methods be any different? from a vector physics perspective in describing the car's acceleration, no.
Originally posted by Arbitrageur
Gravity is one subject where we have more questions than answers, I think, so we should be open to entertain theories if they answer the questions we have. We think our model that gravity warps space-time is pretty good. But what nobody seems to understand as far as I know, is WHY and HOW gravity warps space-time, that's the real mystery, and the mechanisms are not understood. It's one of the biggest mysteries in the physical world that's never been solved as far as I know.
Originally posted by Arbitrageur
So the premise in the OP seems grounded more in conjecture than in fact.