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 Qatar’s 2022 World Cup Stadium made with Shipping Containers Are We Ready to Edit the Fetal Genome? There’s so much CO2 in the atmosphere that planting trees can no longer save us The Man Biohacking Encryption From His Garage Mind Blown – How Many Ways Can You Arrange a Deck of Cards? Understanding the Most Extreme Numbers in the Universe