Birdwatch Note Rating
2023-07-18 02:43:02 UTC - NOT_HELPFUL
Rated by Participant: 4458E0A980A610625414C304D08CF939F3213CCE547C1AF5C899BA565062663B
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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