In our fourth animation in the máthēma collection, we explore Newton's Law of Gravity. The concept itself is counter-intuitive: a feather seems as though it should fall more slowly than a boulder. That's why it took the genius of Sir Isaac Newton to prove that all matter falls at the same rate of acceleration in a vacuum. Without this fundamental law of physics, there is no way to make sense of the shape of the universe. Literally speaking, the spherical shapes of stars and planets, moons and asteroid belts across our universe, are dictated by the Law of Gravity; a law as starkly unbendable as gravity itself is a curvature of space-time.