In 1935, Erwin Schrödinger devised a horrifying thought experiment about a cat in a box. The appalling results of his experiment went to the crux of the most severe problem of quantum mechanics — the infamous measurement problem. Much of the philosophical discussion about quantum mechanics still revolves around this problem and how one might go about solving it. Can't resist taking a sneak peek at what's going on inside the box? Press the yellow button, and continue reading!