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 How The Toilet Changed History Why Is Everyone Having Twins? Photonic Chips Will Change Computing Forever… If We Can Get Them Right Is It Possible To Stay Young Forever? 11 Theories About the Universe That Will Leave You Thinking What Is Chemical Evolution?