PhysicsHugh Everett: The man who gave us the multiverse The physicist developed the idea that we're living in a multiverse of countless universes, full of copies of each of us. His life was fascinating and tragic Features
PhysicsPole alone: The quest for a north without a south We've never seen a magnetic north pole without its opposite number, but theory demands that these strange monopoles exist. So why don't we make one instead? Features