Birdwatch Note Rating
2023-07-17 20:49:59 UTC - HELPFUL
Rated by Participant: 0E6F61D8F6596335FD11A0EF889B1CBE1AA025B7DCA048FDD135D265F59530BB
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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