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originally posted by: JoshuaCox
a reply to: intrptr
I think he is saying that an explosion capable of cutting through the supports would register on local seismic scales..
Not just make a popping sound.
originally posted by: LightSpeedDriver
Please do just stop with your continuous misinformation. It's getting old. Not as old as me, but it is getting old.
Let us instead promote the virtues of the US government and how they have all your (I am not a US citizen or resident) best interests at heart, almost 2 decades after the greatest "terrorist" attack was perpetrated with no action from aforementioned "authorities".
You forgot the passport they found. I'm only trying to help!
originally posted by: Salander
a reply to: JoshuaCox
If the government were being honest, Cheney & Bush would have testified in public and under oath.
If the government were being honest, Kean and Hamilton would not have stated that the commission was set up to fail.
If the government were being honest, it would have no need to have confiscated surveillance footage from hotels and other private interests near the pentagon.
originally posted by: SkeptiSchism
a reply to: neutronflux
So how did the towers manage to fall perfectly into their own footprints? You do realize that a structural failure at that height of the building would have induced rotation (moments) somewhere in the structure which would have then magnified the direction of motion of the building causing it to fall laterally (horizontally)?
Please explain your theory as to how the buildings collapsed perfectly into their own footprints.
originally posted by: JoshuaCox
a reply to: six67seven
Actually MIT did a computer generated model where they explain all the physics involved.
They explain exactly how they fell.
The two towers when hit with the planes . Sheared off the thermal coating o the steel support beams. Then the gas caused an inferno that wasn’t hot enough to melt the beams outright, but was more than hot enough to bend them. Once the supports start to bend they loose the vertical stability which starts the pancake effect.
The towers DONOT fall at free fall speeds. In the video you can watch debris out pace the buildings fall..
Building 7 was totally gutted from the backside of the pictures they like to show. A chunk of the towers landed on the roof taking out the back half of the building. So the side we see as it falls is basically a shell. With only 2 1/2 walls still remaining.
originally posted by: skunkape23
BBC reported the collapse of building 7 while it was still standing in the background.
At approximately 2:00 pm, firefighters noticed a bulge in the southwest corner of 7 World Trade Center between the 10th and 13th floors, a sign that the building was unstable and might collapse. During the afternoon, firefighters also heard creaking sounds coming from the building. Around 3:30 pm, FDNY Chief Daniel A. Nigro decided to halt rescue operations, surface removal, and searches along the surface of the debris near 7 World Trade Center and evacuate the area due to concerns for the safety of personnel.
10WHAT CAUSED BUILDING 7 TO COLLAPSE? Many firefighters reported seeing structural deformations of Building 7 hours before its collapse, including the top FDNY fire Chief Daniel Nigro, who stated, “I feared a collapse of Building 7 (as did many on my staff). The collapse of WTC 1 damaged portions of the lower floors of 7. Building 7 was built on a small number of large columns providing an open Atrium on the lower levels. Fires on many floors of WTC 7 burned without sufficient water supply to attack them. For these reasons I made the decision (without consulting the owner, the mayor or anyone else—as ranking fire officer, that decision was my responsibility) to clear a collapse zone surrounding the building and to stop all activity within that zone.