Galio is famous for his study of how things fall.He was the first person to do experiments about this problem .Before,people thoght that heavy thing always fell faster than light things.He found out that this was hot true . He took a heavy ball and a light ball and he dropped them both from a high place.They fell at the same speed. This meant that weight is not important. This is the law of falling bodies. It is an important law for understant law for understanding our world