Birdwatch Archive

Birdwatch Note Rating

2023-07-18 17:55:09 UTC - HELPFUL

Rated by Participant: 750509E4015F0E171F23BB2901A7290B906C2D02657AE956AC84B4752CA4C4AF
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

All Note Details

Original Tweet

All Information

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  • version - 2
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  • helpfulnessLevel - HELPFUL
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