Birdwatch Note Rating
2024-04-23 00:25:38 UTC - HELPFUL
Rated by Participant: F409988B7C2538144E522AA54C81201F0417BC2820BF5226BB0FB861FC115C15
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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