Birdwatch Note Rating
2024-04-23 01:58:51 UTC - HELPFUL
Rated by Participant: A8D99582E9E03958D390F8866D05229FCEDF939C5D36247B6262E61F1D1314D7
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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