Birdwatch Note Rating
2023-07-17 23:20:15 UTC - NOT_HELPFUL
Rated by Participant: 48E8F57C792AB115C2934519584E4A9E4575F7F3CA7C76CE0E3BFECB8FBBC4D8
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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