Birdwatch Note Rating
2023-07-19 10:19:38 UTC - HELPFUL
Rated by Participant: 60BB7E5F749ACE0B2A0CB23AAAD825E8E49A5F2350B99A5C19253CC4964E11E3
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