Why is gravity still described as a “force” when Einstein described it as the curvature of spacetime?

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Gravity- it’s known as the “weakest fundamental force”, but we know the “attraction” is really just objects falling along the curvature of space toward a more massive object. I don’t understand how this explanation of gravity relates to the other fundamental forces.

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Anonymous 0 Comments

>I don’t understand how this explanation of gravity relates to the other fundamental forces.

without a theory of quantum gravity it won’t relate to the other forces but it’s only an issue of knowledge. i.e. we know what a photon is, we don’t know what a graviton is (or if there even *is* one, maybe it’s just a field, maybe spacetime itself is a particle or a field or something we haven’t dealt with before.)

experiments at the LHC will help to flesh out the issues:

https://home.cern/science/physics/extra-dimensions-gravitons-and-tiny-black-holes

>Some theorists suggest that a particle called the “graviton” is associated with gravity in the same way as the photon is associated with the electromagnetic force.

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