According to the NIST web site it was not a free fall. You are quote mining by not including the entire context.
http://www.nist.gov/public_affairs/factsheet/wtc_qa_082108.cfm
Section 12.5.3 of NIST NCSTAR 1-9 (available at http://wtc.nist.gov/NCSTAR1/PDF/NCSTAR 1-9 Vol 2.pdf).
The analyses of the video (both the estimation of the instant the roofline began to descend and the calculated velocity and acceleration of a point on the roofline) revealed three distinct stages characterizing the 5.4 seconds of collapse:
• Stage 1 (0 to 1.75 seconds): acceleration less than that of gravity (i.e., slower than free fall).
• Stage 2 (1.75 to 4.0 seconds): gravitational acceleration (free fall)
• Stage 3 (4.0 to 5.4 seconds): decreased acceleration, again less than that of gravity
This analysis showed that the 40 percent longer descent time—compared to the 3.9 second free fall time—was due primarily to Stage 1, which corresponded to the buckling of the exterior columns in the lower stories of the north face. During Stage 2, the north face descended essentially in free fall, indicating negligible support from the structure below. This is consistent with the structural analysis model which showed the exterior columns buckling and losing their capacity to support the loads from the structure above. In Stage 3, the acceleration decreased as the upper portion of the north face encountered increased resistance from the collapsed structure and the debris pile below.
Stage 2 right there is all you need to see.
FREE FALL. You cannot get pure FREE FALL without explosives PERIOD!
Stage 2 right there is all you need to see.
FREE FALL. You cannot get pure FREE FALL without explosives PERIOD!
According to the NIST web site it was not a free fall. You are quote mining by not including the entire context.
During Stage 2, the north face descended essentially in free fall, indicating negligible support from the structure below. This is consistent with the structural analysis model which showed the exterior columns buckling and losing their capacity to support the loads from the structure above. In Stage 3, the acceleration decreased as the upper portion of the north face encountered increased resistance from the collapsed structure and the debris pile below.
What is wrong with you? Seriously, you have just made - and this is quite an achievement - your stupidest, most cringe-making, lie and delusion-filled post in your time here.
How the hell can you read that line from the NIST report and say it proves your point?
It does the precise, exact opposite.
It says the collapse of the North Face was:
Let me try and explain this in the simplest terms. The NIST report is saying that is it were free fall, it would have taken 3.9 seconds. But in this case it took 5.4 seconds, or 40% longer to fall than free fall time.
Is that simple enough for you to understand now, or shall I do a sock puppet play to illustrate the point further?
You are just humiliating yourself now.
Your research skills are on a High School level. It clearly states the reason for a short time period of free fall during the collapse. And its not an explosion. Stop cherry picking misleading quotes to make a point.
Re: do you believe 911 was an inside job
I believe that nothing would surprise me if, at a future date, the real official government side of the story was found to be less that the whole truth, the only truth, so help me God! I mean, come on, the government is notorious for giving us half truths about events of significant importance, what's so surprising about that?
I only have questions about some of the events related to September 11, 2001, does that qualify me as being a ''conspiracy nut'' for being cynical about my govt.?
Question Authority . . Always Question Authority!
This crap is still going on :dunno: WTC7waspulled is an idiot.. you cannot achieve free fall without explosives= dumbest/ most ignorant thing I've ever heard, you people should just stop arguing with him, he's already proven himself to be unwilling to listen to reason, if you stop arguing with him then he'll have no one to preach his bullcrap to.
I love it. You sit there and tell me that hi rise buildings can collapse with no resistance at freefall speed without explosives (totally wrong) and you name call and give no argument or anything whatsoever to back up your claim.
Hey tell me how all support columns for WTC7 suddenly disappeared to allow for the free fall uniform collapse into it's own footprint. I really want to know.
I don't make duplicate accounts. Seems you have a hard time believing many can be on board with 9/11 Truth. Well polls show people like you are quickly becoming a minority. The world is waking up to the fact 9/11 was an inside job and the whole "war on terror" is actually a war against anyone opposed to a New World Order.
Canadians =/= The World