Birdwatch Note Rating
2023-07-17 13:23:06 UTC - HELPFUL
Rated by Participant: 5117870A9EA816861E4BF3B49A5FCD501CADB75D9C00CB8878DD32EA50A2AE45
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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