The purpose of this project is to determine which laminated beam is the strongest.
http://scssi.scetv.org/mims/schools/blhs/science/y99/brian1.htm
Post paper airplanes are flat but this paper hoops can realy fly !
http://www.exploratorium.edu/science_explorer/hoopster.html
This simple paper toy spins through the air like a mini-helicopter
http://www.exploratorium.edu/science_explorer/roto-copter.html