Quantum Physics2025-12-061 minarXiv:2512.06333expressQuantum Test of Falling BodiesAll bodies fall the same: this was first observed by Galileo. Einstein elevated the observation to the equivalence principle: gravity and acceleration are indistinguishable, giving birth to curved spacetime.Roberto Onofrio·Alexander R. H. Smith·Lorenza Violaequivalence principleEinstein field equationsAlbert EinsteinRobert H. DickeBernhard Riemannspacetime curvaturequantum gravitygravityquintessencequantum measurement👍👎☆SimplePopularAdvanced