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 Gaia Hypothesis How healthy are your ears? 10 Surprising Chemicals Your Body Makes Artificial Intelligence Is Mapping the Pacific Ocean’s Secret Soundscape Why Scientists & Artists Want the World’s Blackest Substances 4 Possibilities for the Meaning of LIFE