Today I Learned@lemmy.worldEnglish · 3 天前

TIL the air force experimented with bouncy landing runways to eliminate the weight of landing gear.

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TIL the air force experimented with bouncy landing runways to eliminate the weight of landing gear.

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Today I Learned@lemmy.worldEnglish · 3 天前

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3 天前
Soapy water! And a filled kiddie pool at the end of the runway to stop.

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