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 Which Batteries Are the Best? Is The Alcubierre Warp Drive Possible? 11 Theories About the Universe That Will Leave You Thinking Can you solve the buried treasure riddle? Africa’s Megacity: Future Megaprojects The Stopped Clock Illusion