The Greek thinker Aristotle offered the hypothesis that heavy objects fall faster than light objects, and that both fall down because it is natural for them to do so. Galileo Galilei, the Italian astr...The Greek thinker Aristotle offered the hypothesis that heavy objects fall faster than light objects, and that both fall down because it is natural for them to do so. Galileo Galilei, the Italian astronomer and physicist, conducted laboratory experiments that showed that all objects under the influence of gravity fall toward the ground at the same rate. In the video, you should have seen that both the hammer and feather reached the ground at the same time, consistent with Galileo’s findings.