Most historians think that this was actually a thought experiment: https://en.wikipedia.org/wiki/Galileo's_Leaning_Tower_of_Pisa_experiment https://en.wikipedi

Most historians think that this was actually a thought experiment: https://en.wikipedia.org/wiki/Galileo's_Leaning_Tower_of_Pisa_experiment https://en.wikipedia.org/wiki/Galileo's_Leaning_Tower_of_Pis... An equivalent experiment was famously carried out for real in 1971 on the surface of the Moon.