Birdwatch Note Rating
2023-09-05 01:55:16 UTC - HELPFUL
Rated by Participant: 4155AC7DDBB37B2BAD11753C25B99DF8E4B10B437C6D42BACE2F53D94D460220
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Original Note:
Jet fuel burns at a temperature of 800 to 2500 degrees F. https://firesafetysupport.com/what-temperature-does-jet-fuel-burn/ Structural steel loses 60% of its strength at temperatures above 1000 degrees F. https://www.engineeringtoolbox.com/metal-temperature-strength-d_1353.html As the building's weight is constant, the same load is supported by less load carrying capacity, leading to failure.
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