The collapse of Building 7 on 9/11 has been solved. It was set on fire by debris falling from the Twin Towers.
Scientists with the National Institute of Standards and Technology say their three-year investigation of the collapse determined the demise of WTC 7 was actually the first time in the world a fire caused the total failure of a skyscraper.
“The reason for the collapse of World Trade Center 7 is no longer a mystery,” said Dr. Shyam Sunder, the lead investigator on the NIST team.
Investigators also concluded that the collapse of the nearby towers broke the city water main, leaving the sprinkler system in the bottom half of the building without water.
Of course the so-called “truthers” will have none of this and claim the explanations are insufficient. But the scientists who did the study say there was no boom-like sound that would have been associated with a bomb, and that computer modeling reveals a how the collapse of a column began a chain reaction that led to such a disastrous result.
The 77-page report concluded that the fatal blow to the building came when the 13th floor collapsed, weakening a critical steel support column that led to catastrophic failure.
“When this critical column buckled due to lack of floor supports, it was the first domino in the chain,” said Sunder.
Will this put to rest the conspiracy theories?
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