By Cy Tymony ■ Illustrations by Tim Lillis
You will need
One 8½"×11" piece of paper
Understand Bernoulli’s principle of flowing fluids and gases with a paper flyer.
1. Demonstrate Bernoulli’s principle.
Cut a paper strip ½"×4". Hold the paper strip just below your lips, and blow above the strip (Figure 1). The paper will rise!
This occurs because of Bernoulli’s principle—fast-moving air has lower pressure than non-moving air. The still air below the strip has higher pressure than the moving ...