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The Wright Brothers
discovered the secret of heavier-than-air flight, and Bob Symes explains
just how airplanes stay up. The simple model of an airplane wing
demonstrates the importance of its shape (rounded on top and slightly
concave underneath) and its position (or attitude). When both
characteristics are present, an air current passing over the wing will
create pressure on the undersurface and a partial vacuum on the top surface.
This produces lift. (6 minutes)
ORDER CODE: FFMBVL1660V
VHS
VIDEO
ORDER CODE: FFMBVL1660DVD
DVD
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