Why the wiggle in a crowd’s walk can put a wobble in a bridge

Discussion in 'General Science & Technology' started by sculptor, Nov 12, 2017.

  1. sculptor Valued Senior Member

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  3. Gawdzilla Sama Registered Senior Member

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    There was a short pedestrian bridge between Naval Training Center and Marine Recruit Depot at San Diego. The DIs had a heck of time getting the recruits to not march in step.
     
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