Birdwatch Note Rating
2023-07-17 13:05:13 UTC - HELPFUL
Rated by Participant: 5516E8800462D5445D000F6601B8B3105D5E774670E6D5385D02E785B5602DFD
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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