How We Proved Earth Rotates Using a Giant Swinging Ball People have suspected that Earth rotates for thousands of years, but how did we first prove it? Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Proof Your Senses Are Lying To You Inside the World of Drone Racing How Animals See The World The Future of Internet Infrastructure The Insane Doomsday Weapon That America Almost Built What Happens at the Event Horizon?