You may want to be on something for this one. This does some good work challenging perception in and of itself.
http://www.tenthdimension.com/medialinks.php And in the stumbling I discovered Michio Kaku. This guy is awesome. He really has a down-to-earth attitude about everything (which is in my experience very common amongst many physicists) and gives you a grip on the state of our world and a solid perception of it. Search for him on youtube. Here's a completely random snippet which goes into some green stuff, which I actually didn't realize.
http://www.youtube.com/watch?v=097IiChnx08&feature=related