Galileo's Balls: Did He Really Drop Them?

According to Aristotle, the speed with which an objects falls is proportional to its weight, i.e., he said heavy objects fall faster than light ones. The Italian Renaissance philosopher Galileo Galilei is widely believed to have tested this claim when he was a professor in Pisa by dropping different weight balls from its Leaning Tower. However, many historians doubt this because there is no supporting historical evidence. These skeptics further object that though Galileo reported the result...