General Relativity Effects Observation in the lab Is it possible to observe any General Relativity effects in the lab with relatively simple experiments?
I cannot create any gravity in the lab, but I can create high acceleration (100-1000 g force, maybe even up to 10 000 g, meaning acceleration up to $10^5m/s^2$) or I can rotate something very fast up to 100 000 RPM. Based on the equivalence principle this acceleration will lead to some changes due to General Relativity.
For example, in this highly accelerated/rotated reference frame, I can try to see so effects in:

*

*Electromagnetic field change

*Light propagation change

*Mechanical effects

*etc.

Or this 10 000g/100 000 RPM is too small to notice any General Relativity effects?
Maybe there were some known experiments like this?
 A: It's important to remember that acceleration is not the same as curvature of spacetime. The equivalence principle says only that gravity is indistinguishable from acceleration in a "small enough" region of spacetime, i.e. in the limit as the spacetime volume goes to 0. Sensitive experiments, or ones that run over a large area or long time, can tell the difference. For a trivial example, the direction of gravity near the Earth changes over long distances, and this is very much detectable.
So using centrifuges and the like is not a useful way to test General Relativity (curvature of spacetime) because they do not actually curve spacetime -- they produce acceleration which is like gravity in a local area, but they don't actually produce gravity.
Having said that, modern clocks are sensitive enough to directly measure relativistic effects due to Earth's gravity, e.g. time dilation due to gravity can be distinguished between clocks that are less than a meter different in height (see https://www.nist.gov/news-events/news/2010/09/nist-pair-aluminum-atomic-clocks-reveal-einsteins-relativity-personal-scale ).
