Birdwatch Note Rating
2023-07-17 22:33:12 UTC - HELPFUL
Rated by Participant: 69C9DE1CC81707FDD925EA4F4EEB042F853492781DB65E9E3054E71D0D53FE71
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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