Hi all -- Check this out. It's pretty neat, and sort of scary too.
This is an interesting demo by the Motorcycle Safety Foundation (who teach all the safety courses around PA and other states) on why car drivers don't readily see motorcycles and bicycles even when they are right in front of them. It seems to me they should be teaching this to car drivers - not the people who get hit!
http://www.msf-usa.org/motion.html