What Did Einstein Mean By ‘Curved’ Spacetime? We asked two physicists to walk us through one of the basic principles in Einstein’s general theory of relativity. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Is Ancient Mars Life Frozen In Glass? 7 WTF Discoveries from History The Man Biohacking Encryption From His Garage NASA released a simulation of all 2017s Hurricanes Why Can’t Humans Regrow Body Parts? How Should We Define Intelligent Life?