One of the members of my local group is a physics teacher, he does a lot of work with long strips of ribbon tape but lately he's been working with the effects that light produces on folded models out of cellophane when seen through a pollarized filter. He calls it "optic origami". You can watch a video of some of his models and these effects at: http://www.flickr.com/photos/georigami/15626563248/
Sorry if this seems like a repeated message, but it is not. Earlier I sent a message announcing that I had uploaded pictures from the Colombian convention (among which this video is included) but maybe some people on this list couldn't care less about photos from a convention but are interested in this type of things such as "optic origami", hence I am sending this separate email. -- Jorge Jaramillo
