1. The word “origami” comes from the Japanese words “oru” meaning fold, and kami, meaning “paper”.
2. Leonardo Da Vinci wrote of using parchment in building models of his ornithopter (helicopter).
3. The first book about recreational paper folding came out in Japan in 1797, and included the iconic “crane” design.
4. There may one day be a paper plane launched from space. A prototype passed a durability test in a wind tunnel in March 2008, and Japan's space agency JAXA considered a launch from the International Space Station.
5. According to the Paper Aircraft Association, a paper airplane thrown in space will not fly; it will float in a straight line.
6. Scientists, engineers and students use paper airplanes to study aerodynamics.
7. Together, Chinese and US paper mills combine to make forty percent of the world’s paper and paperboard.
8. During World War ll paper was some of the only material available for toy making. Consequently paper modeling became very popular.
9. The Wright brothers reportedly use paper planes, wings and airfoils in wind tunnels as part of their quest to build the first powered human carrying airplane.
10. The paper aircraft with the largest wingspan, 40ft 10in (12.22m), was made by a team of students from the Faculty of Aerospace Engineering, at the Delft University of Technology in the Netherlands.