Birdwatch Note Rating
2024-04-23 15:58:17 UTC - HELPFUL
Rated by Participant: E512CFF475C7D6354E3EB1F4919CC1E3D61F1D66C392F477541671B705FB5724
Participant Details
Original Note:
The highlighted ejecta on levels far below the collapsing levels is due to elevators with motors and cables destroyed, dropping to the base of shafts terminating on intermediate floors. The piston effect in these shafts created high-pressure jets of dust and debris: https://theconversation.com/how-the-terrifying-evacuations-from-the-twin-towers-on-9-11-helped-make-todays-skyscrapers-safer-167698
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