The equivalence principle says that there is no difference between being stationary and subject to gravity tugging you and accelerating in a vehicle that's free of gravitational pull.

Per the equivalence principle, this should have no effect on how gravity acts upon both cylinders. So if MICROSCOPE measured any deviations, equivalence would be violated.

Journal Reference: Magdalena Zych, Časlav Brukner. Quantum formulation of the Einstein equivalence principle. Nature Physics, 2018; DOI: 10.1038/s41567-018-0197-6 ...

What's the weak-equivalence principle? The weak-equivalence principle is a weird one. It pretty much says all objects in a gravitational field must fall in the same way when no other force is ...

The Weak equivalence principle (WEP) is a key aspect of classical physics. It states that when particles are in freefall, the trajectories they follow are entirely independent of their masses.

Einstein's theory of general relativity called the weak equivalence principle, which states that all objects, regardless of their mass or composition, should free-fall the same way in a particular ...

Scientists noted that both results are equivalent, but couldn’t explain why. Einstein created the Theory of Relativity -- and the equivalence principle -- as a way to elucidate the laws of ...

Which, in fact, violates the weak equivalence principle in a more direct way, too, once the mass-energy equivalence of special relativity is taken into account.

Springer. "Weak equivalence principle violated in gravitational waves." ScienceDaily. ScienceDaily, 28 October 2020. <www.sciencedaily.com / releases / 2020 / 10 / 201028110627.htm>.

As well as placing constraints on deviations in the weak equivalence principle, the findings also disfavor any deviations in Einstein's 1915 theory of , general relativity, as a whole.

If the equivalence principle breaks down, the door opens for new physics to complement general relativity, maybe a new type of interaction or a new type of particle for this interaction, he said.

Rubidium experiments confirm that Einstein was rightPhysicists in Germany have used an atomic interferometer to perform the most accurate ever test of the equivalence principle at the level of atoms.