Простой бумажный самолетик

Learn how to make paper airplanes with these easy instructions. Select the plane you want and get ready for takeoff. Be careful with the ones that are pointy, they can hurt! Most planes are best indoors, but some will surpise you outdoors. When you think of origami, you automatically think of some complex paper structure that is difficult to fold, but it doesn't have to be that way. Now that you have a flying plane, you can use it to see the roles that paper plays in its construction. After the kinetic energy (that is, the energy you put into it by throwing it) of the initial throw has dissipated, paper planes are gliders powered by gravity. As the plane falls, its wings deflect air backward and down, providing thrust and lift. Paper makes a good wing because it's impermeable to air: In a single sheet of paper, multiple layers of interlocked fibers prevent air from flowing through. https://youtu.be/JonturIoFQA