Todays “WHAT IS THIS?” is one of the coolest things I have ever seen. It is called a Rube Goldberg Machine. A Rube Goldberg Machine or contraption, invention or contraption is an overly engineered contrapton to do a simple daily task. Having an engineering background, I could see myself attempting to do something like this.[youtube http://www.youtube.com/watch?v=GOMIBdM6N7Q&w=560&h=315]If you have kids, this is a must do on some level!