Since most of us are science-geeks I figured I'd share this here - its out of the MIT Gamelabs A Slower Speed of Light There isn't much *to* the game you just move around and collect little balls, but at some point you've slowed light down to the point that some weird things start to happen (and frankly, I got a little nauseated). But hey, its free and an interesting model of what happens at relativistic speeds.