Birdwatch Note Rating
2023-07-17 14:44:43 UTC - HELPFUL
Rated by Participant: 6825184A2B5218858628ACC5F79B702D3540FFFEB977CBA016A8C0E0BB99237A
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
All Note Details