I viewed the video of the man trying to say their time was off. It is not surprising that anyone when confronted with questions they were not prepared to answer or do not really understand would answer them badly. Sure looking back a the video it is easy to say what these guys should have said.
David Chandler a high school physics teacher challenged the multimillion dollar agency NIST on the actual collapse of WTC 7, and concluded it indeed fell at free fall for 2.25 seconds, forcing NIST to change their report and admit to this but without explaining how this could be, even after NIST and Sham Syunder initially and correctly stated that there was no way the massive 47 story hirise could fall at free fall because the robust part of the structure would no doubt provide enough resistance to make free fall an impossibility.
Try to use your own logic about this taking into consideration that in order for the collapse to undergo free fall, all the major load bearing components would have to let go and be freed of their ability to resist the falling mass, simultaneously.
First of all the fires at these points would have to be the same temperatures, with the same intensity at the same time in order for this to happen, and no building in history has ever undergone such a thing and collapsed with such uniformity due to office fire combustibles...never. Even the NIST computer simulation does not show the way the actual collapse occurred. Combine this with the fact they were wrong about the fuel loads, the free fall, and their keeping others from duplicating their outcome by withholding the comp sim data for replication, proves that their report and outcome of the investigation is nothing more then a cover up to try to fit the demise of WTC 7 to a fire only probability.
They have admitted that neither the towers collapses nor the diesel fuel tanks were a contributing factor.
Anyway, here is an easy experiment for you to do. I viewed the video of the WTC 7 starting to fall. I see it start at the 32 second mark, but could have been sooner, and when it drops to just about where it can't be seen was about 37 seconds. This seems to be in line with what the NIST stated.
So to say either the NIST or the man commenting on the video is wrong is near impossible because it is subject to interpretation.
So let's do this. I got 5 seconds for the building to fall 18 stories, I didn't count them I just went by the video statement and when the building almost went out of sight. So that means in 5 seconds the building fell 180 to 270 feet. I again don't know the actual height of the stories so am guess 10 to 15 feet.
So using this calculator:
Free Fall Calculator
For a free fall of 150 feet the time in seconds is 3.08, for 270 feet it would be 4.11 seconds well within anything that the NIST said. Not quite 40 percent different but not a few percent either. 39 percent for 150 feet and 18 percent for 270 feet.
So as you can see there are many factors that go into the calculation that the physics teacher may or may not have known. Certainly he would have access to a calculator it is just a matter if he had the right data to calculate.
NIST was charged with the calculations that Chandler and others prove to be inaccurate at best and totally misleading at worst. They initially said correctly the huge building was supposed to provide resistance and free fall could never occur...so why did they change their report? Because they were wrong, and these types of mistakes, given all the other instances of fudging data to achieve a preconceived conclusion,look like more then just errors and more like intentional fraud.
Which brings us full circle and the conclusion I come up with is that this teacher is grading the NIST not necessarily proving anything. Whether or not the building free fell, which I don't see that it did, is not an indication of whether after 7 hours of burning they finally decided to implode the building.
So now you even are going against the NIST report itself. Hell they admitted to the free fall when backed up by honest calculations and data why can't you?
Furthermore you are not giving serious consideration to the fact that free fall can only occur when the massive resistance, that NIST correctly stated no doubt would have precluded free fall from happening in the first place, and the building's support structure is supposed to have provided, vanished for the first 100 or so stories, allowing it to go from stable to free fall in an instant. You also can't grasp the fact that steel will not turn into spaghetti noodles, especially when office combustibles do not reach anywhere close to the temps required to achieve this, with such uniformity. Think all support columns, beams at the same time giving way in sporadic fires with too low of temps.
I have worked with steel and torches and done fabrication and there is no way this could have happened producing the results we see on the videos. At best if a few of the support components did magically achieve this far fetched scenario, the building would have leaned to that part of its weakest point and came down in a staggered fall, and not in such a uniform manner and straight roof line.
Steel dissipates heat causing the heat to move to the cooler parts of the building or steel, this means that the temps required to remove the resistance had to have been elevated to the point of causing this weakening/melting, had to be constant because of steels ability to dissipate the heat, and had to be both at the same time to collapse in such simultaneous uniformity.
Even if the detonators were RF remote controlled that too could have been damage by fire and the initial blast from WTC 1 and 2 falling. Also with all the radio interference from emergency crews the demolition crew would be taking a big chance using RF.
You are trying to bypass the facts that are mentioned and dismiss them simply because we don't know the equipment or technology used? Does that take away and give reason to throwing basic facts of physics that have been part of science for years and history of hirise building? I don't think so, and if you do you are lazy and in denial of the hard facts, and the evidence to seriously question the NIST fire only BS report.
Fact is massive hirise's, in particular a fortified one like WTC 7 do not come down looking like a CD due to sporadic office fires, while producing astronomical temps in the rubble pile for 3 months.
Now, rationally ask yourself the very simple question that I posed in my first post. You do not need to rely on someone else's math. You don't need to rely on reports from unnamed reporters.
The problem here is we relied on a trusted gov. agency to explain how these anomalies happened and they lied. I suggest you re analyze your own version of rational, and remove the denial and replace it with objectivity. Hell, NIST relied on someone else's math and data, to the point they were wrong in their initial estimates and report, the troubling part is that they still can not explain things without resorting to miracles having occurred, and that isn't science.
All you need do is engage your logic. Why would the news reporters get information that the WTC 7 collapsed before it actually collapsed?
I already stated my opinion on this, and again it may have come from the fact that the reporter who was on scene and heard Silverstein was on the phone with the insurance company and word got out it was "coming down" they fucked up their timing. Now, try to use your own logic and think about how such a massive structure is to be rigged for CD in such short order?? It isn't possible therefore it had to be pre-rigged months or weeks in advance. Why? Perhaps to ready it for the 9-11 shock and awe show that was needed as a new "Pearl Harbor type of catastrophic event" to galvanize support to go and kill the bad guys. Insurance fraud with friendly judges were a side benfit for lucky Larry.
BTW, you posted this: "Evidence that contradicts NIST and the official story line is available, and contrary to what some on the USMB say, has not been explained or countered in any rational and scientific way. I find it laughable that when I ask these people to post any rational counter rebuttals they answer by saying that it has already been debunked, without ever linking to anything that advances their position and backs up their claim that the 9-11 attacks and the science of the massive building complex has already been explained adequately."
I did provide a link that completely demolished the theories you presented.
Here is another:
9/11 Conspiracy Theories - Debunking the Myths - World Trade Center - Pentagon - Flight 93 - Popular Mechanics
Popmechanics does not explain away shit and that rag and their article have been destroyed for the BS that it is. This is old news, look up rebuttals to their BS. In the age of the internet it should be no problem.