Test the secrets of aviation. In this kit, you'll uncover the wonders of flight. People build all sorts of machines to overcome the forces that normally keep us...More

Test the secrets of aviation. In this kit, you'll uncover the wonders of flight. People build all sorts of machines to overcome the forces that normally keep us earthbound. Which ideas sour and which ones crash and burn? Do rockets really launch best when they run out of gas? Would astronauts explode without spacesuits? What do bubbles know about flying?Less