BUILDING 7: The 9/11 Controlled Demolition That Woke The World; Molten Metal & Thermite Material ~ September 12, 2023

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On September 11th 2001, American Airlines Flight 11 and United Airlines 175 smashed into the North and South towers of the World Trade Center in New York City. Just over an hour and forty minutes later, both towers had collapsed.

Burning jet fuel cannot melt steel
The melting point of steel is 1510°C. The temperature at which jet fuel burns is between 426.6°C and 815.5°C. So how could the towers collapse due to structural failure when the fires were not hot enough to melt steel?

While it is indeed true that burning jet fuel alone cannot melt steel, a fire that was also fuelled by burning furniture, curtains, blinds, chairs, desks, computer equipment and an enormous amount of paper would have burned hot enough to warp steel. NIST estimates that the fires in the towers reached at least 1000°C in certain pockets. The point at which steel weakens is 593.3°C, at which point it will have lost about 50% of its strength. Heated to 1000°C, steel will have lost about 90% strength. It was this weakness in the steel that led to the loss of the buildings’ integrity. As the steel warped and buckled, the columns and steel beams holding the towers up were no longer able to support the weight of the buildings, leading to the pancake collapse of both towers.