The Iodine Clock is uncanny in at least two different ways

This is one of those fun science experiments that most closely approximates magic, because it's spooky in two different ways. The first is that something happens in, sometimes literally, the blink of an eye. The second is something that seems to hold off for a command from the demonstrator. » 9/10/12 3:00pm 9/10/12 3:00pm