In a lab at the Okinawa Institute of Science and Technology (OIST) in Japan, a slab of diamond smaller than a pencil eraser hangs from a carbon fiber rod about 5 centimeters (2 inches) long. The rod is attached to a graphite plate that floats in mid-air above four magnets. Nobody touches it. When a […]

Somewhere between an electron and a human being, the rules of physics change. Quantum mechanics allows an atom to exist in two states simultaneously — spinning left and right at the same time, for instance — which is impossible to picture at human scale. Nobody has ever seen a person, or even a speck of […]