Birdwatch Note Rating
2023-07-17 17:20:37 UTC - HELPFUL
Rated by Participant: A8D0BB4824E1B3D65E73B709419423CCD726ACDB3917DDFC7C89A7D4178169B9
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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