So why then did building 7 collapse after just 7 hours of burning in a way that no steel frame building anywhere in the world has ever collapsed? With the support of a group called Architects and engineers for 911 Truth, Professor Leroy Hulsey of the University of Alaska at Fairbanks conducted an independent study whose findings were released in 2020. Professor Hulsey found that office fires of the kind in building 7 on 911 could not have produced sufficient thermal expansion to cause the crucial girder to fail. (09:12–09:20)
CLAIM
Asserts that Professor Leroy Hulsey conducted an independent study on Building 7, released in 2020.
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