Aeronautics researchers in the 1930s were struggling to determine the cause of a peculiar phenomenon - as an object approached the speed of sound, drag greatly increased and lift drastically reduced. In 1934, a young Langley researcher named John Stack figured out why by photographing a high-speed wind tunnel test of an airfoil. The photo captured the culprit - a shockwave. It was the first time a shockwave had ever been photographed on an airfoil.

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Creative#:

TOP22316852

Source:

達志影像

Authorization Type:

RM

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須由TPG 完整授權

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N/A

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No

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No

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