PhysicsHeating and cooling seem to be fundamentally different, not opposites Conventional thermodynamics says that heating and cooling are essentially mirror images of each other, but an experiment with a tiny silica sphere suggests otherwise ¿ìè¶ÌÊÓÆµ
PhysicsHuman cells have a resonant frequency – and it’s just barely audible Like a tuning fork, living human cells have frequencies at which they naturally vibrate – and now we have estimates for what some of them are ¿ìè¶ÌÊÓÆµ