PhysicsQuantum stopwatch could be the best in the universe Storing time from a quantum stopwatch with qubits – instead of losing accuracy by stopping and starting it – could give us the ultimate precision in timekeeping News
PhysicsSatellite images reveal how powerful North Korea’s nukes are Studying pictures of North Korea's nuclear test site has let researchers calculate its weapons are about 10 times more powerful than the bomb dropped on Hiroshima News