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Design, Engineering & Technology
How one design flaw almost toppled a skyscraper
lesson duration 05:16
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Design, Engineering & Technology
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lesson duration 05:36
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Design, Engineering & Technology
Why are airplanes slower than they used to be?
lesson duration 04:59
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Business & Economics
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lesson duration 05:10
746,447 views
943,448 views
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284,059 views
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Science & Technology
What it's like to live on the International Space Station - Cady Coleman
lesson duration 06:17
75,011 views