What are bulletproof vests made of? How do they get lipstick into the tube? How much brass does it take to make a trumpet? The answers-and so much more fascinating information-can be found in How Things Are Made, a behind-the-machine look at everyday objects of all kinds, from guitars, helicopters, and compact discs to lawn mowers, running shoes, and chocolate.
Planes, Jets & Helicopters: Great Paper Airplanes
Building paper airplanes is easy-even for children-wiith John Bringhurst's fold-by-fold, illustrated instructions. Twenty-five creative designs include a long-winged glider, rounded-winged aircraft, biplane, Delta Wing, Stealth Bomber, Hornet, aerobatic jet, and several choppers.
If you go outside on a windy day, you realize just how strong air can be. It can lift a kite high in the sky and grab onto a balloon and carry it away. But even when the air is calm, you can feel its strength and resistance when you move. "How Do Aircraft Fly?" reveals the science behind air pressure and flying everything from hot-air balloons to helicopters to jet aircraft through eye-catching full-color photograph and illustrations, as well as through textual explanations of real-world examples.
