I mis wrote, he talked about the experiments done to verify general and special relativity. Michelson-Morley was one of them that sticks in my mind along with s

I mis wrote, he talked about the experiments done to verify general and special relativity. Michelson-Morley was one of them that sticks in my mind along with some traveling atomic clocks. We never recreated the experiments like some of the other commenters did in their classes.