November 2007
Beginner
190 pages
8h 3m
English
Make a real boomerang out of cardboard and foam rubber.
You will need: Corrugated cardboard, foam rubber, tape, scissors
Have you ever wondered how birds fly or how sailboats can sail into the wind? In the last issue, I showed how to make a flying disc using the Bernoulli principle to generate lift; now let’s use the same principle to create a boomerang out of ordinary stuff like cardboard.
1. Cut the cardboard to the size and shape shown. Each wing of the boomerang should be 9"×2".
2. Cut 2 foam pieces into oval shapes about 6"×2" with 1 side rising, as shown in Figure 2. The rising shape should resemble the side view of an airplane wing. Place the oval foam pieces on the leading edges of the boomerang and secure ...