PhysicsCause and effect may not actually be muddled in the quantum realm The direction of cause and effect was brought into question for quantum objects more than a decade ago, but new calculations may offer a way to restore it 51¶¯Âþ
PhysicsQuantum trick lets you cool objects down using nothing at all Physicists have demonstrated a bizarre cooling effect by setting up a detector to record the absence of photons in a laser experiment 51¶¯Âþ