Birdwatch Note Rating
2023-07-19 12:02:33 UTC - HELPFUL
Rated by Participant: 8875D055321D84FDB34ABFFBC0B888F7726FFC5ECB5D8E6E7E9E3874DABD6907
Participant Details
Original Note:
Steel structure doesn’t need to reach melting temperature to fail. The crash and resulting fire weakened the floors and columns with dislodged fireproofing to the point where floors sagged and pulled inward on the perimeter columns. https://www.nist.gov/world-trade-center-investigation/study-faqs/wtc-towers-investigation
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