How fire brought down WTC 7
After all the conspiracy theories about the 9/11 attacks in september 2001 that have been seen around the internet, here is the official technical explanation of how fire could bring down the 47 stories Salomon brothers building, in 6.5 seconds. The skyscraper went down many hours after the attacks, simply because it took some time for the fire to destroy the metallic structure.
This video was made by CBS and the NIST (National Institute of Standards and Technology) a few days ago.
The 3D videos from NIST can be seen here.
More Info
NIST: http://www.nist.gov/public_affairs/releases/wtc082108.html

























August 26th, 2008 at 10:41 am
Buried as insane.
You guys have been saying it was
* 25% scooped out
* Diesel tanks caused it
* Debris from the towers caused it
How many times do you have to be wrong? Will you guys admit you were wrong?
No.
September 12th, 2008 at 5:02 pm
Strange, those ’scientific’ videos actually contradict the video footage of the collapse. So what shall we believe, a ’scientific’ projection or what we actually witnessed?
September 12th, 2008 at 7:33 pm
I don’t see how it contradicts the video footage… What did you witness that is not explained in the video?
February 8th, 2009 at 8:00 pm
A very very rare case where a building comes down as in demolition, at the same day when a very very rare case of the NORAD jets not being able to stop a single hijacked airplane, but they are usually on the spot in less than 10 minutes, with a very very rare free-fall collapsing of the twin towers and of course a very very rare possibility that no other building in the area collapses…
Don’t you think this things are a little bit too… hmmmm… rare?
June 15th, 2009 at 12:56 pm
Exactly. My relative Dwight Darcy died in the collapse of the North Tower. Many of the Victims families, including Bill Doyle have grave misgivings with the official story. One piece of evidence will not just go away and that is Edna Cintron waving from where one of the planes impacted the building. Sorry to all you people who cannot look at evidence, but just go conspiracy theory, but how can a woman stand where a raging inferno is going on that is capable of warping steel? I mean her clothes and hair are not even burned and research shows that there is not way on earth anyone can withstand those temperatures. So conclusion: It could not of been that hot.
Along with the free fall speed of collapse the official story is an insult to all the people who suffered this and to see so many Scientists and Engineers just bury their heads in the sand like cowards of the first order is sickening. If you really value the lives of those lost and all the anti-terror garbage that has come in 911’s wake then you will look at the evidence.
Check out Architects and Engineers for 911 truth. My father has worked on the construction of airports and other massive projects including high rises and he can’t buy the official story either. I am a Biomedical Scientist and have seen first hand what Thermate/Thermite can do and the combustion of Jet fuel is to cool to warp steel sufficiently period. Only under optimum conditions in a jet engine can the highest temperatures of combustions be reached. The atmospheric pressure if anything at about 80 floors up was very slightly less than even normal atmospheric pressure.
911 truth for the victims and first responders now.
March 9th, 2010 at 11:31 pm
Even if the fire theory is true, why did the BBC report the building collapsed 20 min before it did? Was the fire on someones schedule?
March 10th, 2010 at 7:05 am
If this is truly what happened, it seems to me every high rise of similar construction (and possibly others) should be evacuated, carefully evaluated and any issues found should be thoroughly addressed before people return.