by Steve Jones, Robert Korol, Anthony Szamboti and Ted Walter
Reproduced with permission of the authors from Europhysics News
In August 2002, the U.S. National Institute of Standards and Technology (NIST) launched what would become a six-year investigation of the three building failures that occurred on September 11, 2001 (9/11):
- the well-known collapses of the World Trade Center (WTC) Twin Towers that morning and
- the lesser-known collapse late that afternoon of the 47-story World Trade Center Building 7, which was not struck by an airplane.
NIST conducted its investigation based on the stated premise that the
WTC Towers and WTC 7 [were] the only known cases of total structural collapse in high-rise buildings where fires played a significant role.”
Indeed, neither before nor since 9/11 have fires caused the total collapse of a steel-framed high-rise—nor has any other natural event, with the exception of the 1985 Mexico City earthquake, which…
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