Wow... it's like watching a SciFi movie about cosmic rays, sunlight or maybe gamma radiation. I'm talking about the experiments of Alan Jaras, a "light photographer", on flickr.
Down his photostream there are many many experiments and attempts (and why not to say sucess) on bending light, an strange phenomeon formed when light passes through various pieces of glass. Here, I'm gonna post only a few, but you really should visit his flickr and check everything out. You'll get amazed. Cheers! ;)