Physics Tapestries
Description: In simple terms, Schrödinger stated that if you place a cat and something that could kill the cat (a radioactive atom) in a box and sealed it, you would not know if the cat was dead or alive until you opened the box, so that until the box was opened, the cat was (in a sense) both "dead and alive". "To be, or not to be dead, that is the question" (Hamlet about Schrödinger's pet)
Description: zeroth law of thermodynamics is so trivial even we will consider it as a common phenomenon without learning about thermodynamics. But as it was so common, it such put fundamental thermodynamics definition, thus without its existing, temperature or such other thermodynamics terms, wont be able to be measured. It was called thermal equilibrium. .
