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EXPERIMENT 1 - Airfoil

Airfoil

Take the strip of paper. Grasp one end of the paper and set it against your chin, just below your mouth. Hold it in place with your thumb and blow over the top of the strip. The paper rises. Try the same thing after you have fastened a paper clip on the end of the strip. See how many paperclips you can lift in this way.
It doesn't matter whether you move the air over the strip of paper by blowing or whether you move the paper rapidly through the air - either way it rises.

 <img src="images/airfoil.gif" align="bottom" width="304" height="250">

 

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Updated: March 12, 2004