PhysicsQuantum trick lets one particle send messages two ways at once For two people to send each other a message, it usually takes a minimum of two particles. But quantum superposition makes it possible with just one News
PhysicsSuper-accurate atomic clock used in real world for first time Atomic clocks are the best timekeepers, but they usually must be kept in a lab to work. Now, they've been used to measure gravity's effect on time in the Alps News