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 The Small Metal Disc that Isaac Newton Made History with Can you solve the control room riddle? Something’s Alive in the Siberian Permafrost Scientists figured out why a giant crack in Antarctica is growing so fast Seriously Strange Coincidences Was There a Universe Here Before Ours? The Big Bang vs the Big Bounce