Propeller

Update: 2012-01-04

Description

Jeremy Kinney of the Smithsonian Air and Space Museum explains how the Wright brothers' wooden propeller -– designed using the world's first wind tunnel -- made the dream of defying gravity come true. Produced by Dennis Nishi.

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Propeller

Public Radio International/WNYC

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Propeller

Public Radio International/WNYC

Propeller