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submitted 1 month ago by fossilesque@mander.xyz to c/science_memes@mander.xyz

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[-] GrabtharsHammer@lemmy.world 28 points 1 month ago

This is a joke about Einstein's form of the Equivalence Principle:

https://en.m.wikipedia.org/wiki/Equivalence_principle

[-] hsdkfr734r@feddit.nl 9 points 1 month ago* (last edited 1 month ago)

Thanks. Let's see:

The weak equivalence principle, also known as the universality of free fall or the Galilean equivalence principle can be stated in many ways.

And

"... in a uniform gravitational field all objects, regardless of their composition, fall with precisely the same acceleration." "The weak equivalence principle implicitly assumes that the falling objects are bound by non-gravitational forces."[11]

I'm just beginning to understand. I'm not there yet.

[-] itslilith@lemmy.blahaj.zone 29 points 1 month ago

If you are standing in a closed box, there is no experiment you can make that tells you whether that box is standing on earth, or is on a rocket in space accelerating at 9.81m/s²

This has a bunch of interesting implications about the nature of spacetime