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Birdwatch Note Rating

2023-07-17 17:50:18 UTC - HELPFUL

Rated by Participant: 874ED0088897814ACB8FF29B092C0C75B79DA4243398A15562DA52BD2D634436
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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