Einstein called it “spooky action at a distance,” but today quantum entanglement is poised to revolutionize technology from computers to cryptography. Physicists have gradually become convinced that ...

There’s nothing like a good riddle to stimulate your mind and give you an excuse to channel your inner Sherlock Holmes. Regularly doing logic and crossword puzzles can even keep your brain young as ...

The theory of quantum mechanics presented at the meeting said that a particle like an electron isn’t physically real until it’s observed, measured by an instrument that can detect it. Before it’s ...