Birdwatch Note Rating
2023-07-18 04:05:00 UTC - NOT_HELPFUL
Rated by Participant: 87A67CB8995391C438AE3DEAB3EE9ACD258EF7EB9F0E41C7E07A556A2A9781A9
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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