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Building 7 Verklaard

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September 11, 2001 Hours after the Twin Towers in Manhattan comes down 7 World Trade Centre collapses into its own footprint. Unlike the towers it was not struck by an airliner. How could this possibly happen without the building being intentionally demolished, as some believed must have been the case? Building 7 collapsed simply due to uncontrolled fires. The World Trade Centre buildings were supported by a frame of steel columns Steel looses half of its strength when heated to just 1.200 °F This weighted beam collapsed completely at around 2.000 °F. Steel also expands when heated. In an uncontrolled fire critical connections between beams can break and put the entire structure at risk. This is what happened to Building 7. The collapse of the North Tower only 120 yards away ejected burning debris, some of which ignited office contents in Building 7. The collapse also damaged the watermain feeding Building 7's automatic sprinkler system and most fire-fighting resources were diverted elsewhere on that day. Fires moved through the building, burning uncontrolled for nearly seven hours. At one point fire-fighters measured a bulge forming in the south-west corner and determined that Building 7 was likely to collapse as well. The agency that investigated Building 7 believes that the critical failure began inside, the collapse progressing across the interior as well as vertically. It was only after the core of the building was gone that the rigid unsupported outer walls came down. This is consistent with the video taken by CBS News. Penthouse structures can be seen collapsing from left to right as the interior caves in underneath. The first part of this unique video, by the way, is rarely shown on conspiracy websites. Some 8 seconds after the penthouse caves in the hollow shell of the building apparently crumples from the bottom as a single piece, making it look as if the entire building collapsed at near free fall speed. Failure is the inevitable consequence for a steel structure exposed to an uncontrolled fire. In 2007 a tanker truck crashed and ignited under a steel construction overpass build to support fully loaded 18-wheelers. When exposed to fire the overpass collapsed under its own weight in minutes before the flames could be extinguished. Last I checked no one has claimed that that collapse was an intentional demolition. So why is 7 World Trade Centre the only tall steel building in history to collapse due to fire alone? Because it's the only one in history to burn uncontrolled, for 7 hours. It's really that simple.

Video Details

Duration: 3 minutes and 31 seconds
Year: 2011
Country: United States
Language: English
Views: 1,421
Posted by: ridelo on Sep 12, 2011

Een ernstige video dit keer: De 'onverklaarbare' ineenstorting van Building 7 van het World Trade Center is het meest overtuigende argument naar voren gebracht door de 9/11 Truthers. Maar er is meer dan genoeg bewijs om aan te tonen dat Building 7 simpelweg is ingestort als gevolg van ongecontroleerde brand - geen nanothermiet-leggende, geheime sloopninja's nodig. Deze video werd mogelijk gemaakt door een royale subsidie van het Ministerie van Informatiecontrole van de Amerikaanse Schaduwregering ;-)

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