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 Lab-Grown Mosquitoes Are Being Released by the Millions, Here’s What You Need to Know Tesla’s Powerwall Home Battery 22 Bizarre Country Borders Where Did Earth’s Water Come From? Can Bacteria Live Off Electricity? How Quarks Fixed the Mess That Was Particle Physics