Birdwatch Archive

Birdwatch Note Rating

2023-07-18 20:34:47 UTC - HELPFUL

Rated by Participant: 61956D81DBCBF77F4CD5BA397CB408507BEDA3FC8B05195C3210E0CE381E0BED
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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