Birdwatch Note Rating
2023-07-18 05:25:37 UTC - NOT_HELPFUL
Rated by Participant: FFC3EFFF25E815D32E0C888EB89D564B861A59A37BBBF63898335B9E64995F13
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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