Take an example to prove the importance of experimental spirit in science

Take an example to prove the importance of experimental spirit in science

In order to refute Aristotle's view that the falling speed is proportional to the weight of an object, Galileo dropped two objects of the same material and different weight at the same time in the Leaning Tower of Pisa, Italy. It is proved that when objects of different weights fall freely in the air, the weight has nothing to do with the falling speed