[Lex Computer & Tech Group/LCTG] crowd crush that kills people

Robert Primak bobprimak at yahoo.com
Sat Nov 5 18:42:40 PDT 2022


 I guess my natural avoidance of crowded situations has paid off all these years.
Interesting article. I wonder how close the analogies with gas and fluid dynamics are to real-world crowd pressures? Is it really that precise, mathematically? Or its this just an approximation reached by the researchers?
 -- Bob Primak
    On Friday, November 4, 2022 at 06:52:47 PM EDT, john rudy <jjrudy1 at comcast.net> wrote:  
 
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https://www.wired.com/story/how-peaceful-crowds-turn-into-a-deadly-crush/

  

Sophomore year in college we had a tug of war between the freshmen and the sophomores.  Maybe 300-400 on each side.  Used a huge rope, like what is used by barges to pull boats.  The rope broke in the middle and each side thought they were winning.  The people near the ends couldn’t see the middle and they pulled harder.  People in the middle dropped the rope and so about 20’ of rope on each side started swinging.  No one was killed but some were injured by the flying rope.

This was one of the events of Field Day, not the most dangerous.  Some years later MIT canceled Field Day.

  

John Rudy

781-861-0402

781-718-8334 (cell)

John.rudy at alum.mit.edu 

  

13 Hawthorne Lane

Bedford, MA  01730-1047



  
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