Birdwatch Note Rating
2023-07-17 21:04:12 UTC - HELPFUL
Rated by Participant: E85ABC01E617EC44D5C902B45EAAB2293A95E20377FDB843E93F229BC97A6065
Participant Details
Original Note:
Steel loses its structural strength long before it melts. For the WTC to collapse, the beams did not have to melt, as it was enough that they lost their structural strength due to high temperature. https://www.researchgate.net/figure/Reduction-of-yield-strength-with-temperature-for-different-steel-grades_fig3_281580209
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