Things can't be in two places at once. Right? Well, quantum physicists are saying that on an unbelievably small scale that might not be true. You see...I've been hooked on a fantastic series on the Science Channel called Through the Wormhole narrated by Morgan Freeman. I'd highly recommend setting your DVR to record the show. It will open your eyes and your mind to possibilities that are both amazing and unsettling.
Recently, I watched an episode of Through the Wormhole that described an experiment involving photons. For those of you who are not followers of Stephen Hawking, light is made up of both particles and waves. Photons are individual particles of light. The experiment demonstrated was known as the "double slit experiment." An individual photon was fired at two slits in a screen to see which slit it would "choose" to pass through. Being one particle, it can only go through one slit or the other...right? Not so fast.
Somehow the single photon particle passes through BOTH slits at the SAME TIME! How is this possible? What's even more baffling is that when we attempt to set up monitors to detect how this is happening...it stops happening! The photon, when being watched, will behave itself and only go through one slit. This almost reminds one of a mischievous child who does what is expected only when an adult is watching. Wow! Reality is much more mysterious than we can imagine. It almost seems playful, doesn't it?
There is a term for this behavior. The word "mercurial" describes someone who is ingenious, playful, unpredictable, or thievish. The word is associated with the god Mercury (the Greek Hermes) and the planet closest to the Sun (light). It is interesting that in the Book of Genesis, the first words attributed to God are "Let there be light." Light is fundamental it seems to creation, to the Cosmos.