Schrödinger’s Cat is the name of a thought experiment in quantum mechanics that posits that an unknown exists in more than state until it is observed. I always considered this idea a particularly human conceit, as if the existence or condition of something has anything at all to do with our knowledge of it. But then again, I’m no quantum mechanic. I can’t even change my own oil. What I do is post things on the internet, like this collection of funny and interesting videos about Schrödinger’s idea, in this edition of The Late Movies at mental_floss.