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9/11 See other 9/11 Articles Title: Collapse Theory Fails Reality Check The towers were 1350 and 1360 feet tall. So let's start by using our trusty free-fall equation to see how long it should take an object to free-fall from the towers' former height. Distance = 1/2 x Gravity x Time(squared) or Time(squared) = (2 x Distance) / Gravity Time(squared) = 2710 / 32 = 84.7 Time = 9.2 So our equation tells us that it will take 9.2 seconds to free-fall to the ground from the towers' former height. Using our simpler equation, V = GT, we can see that at 9.2 seconds, in order to reach the ground in 9.2 seconds, the free-falling object's velocity must be about 295 ft/sec, which is just over 200 mph. But that can only occur in a vacuum. Since the WTC was at sea level, in Earth's atmosphere, you might be able to imagine how much air resistance that represents. (Think about putting your arm out the window of a car moving half that fast!) Most free-falling objects would reach their terminal velocity long before they reached 200 mph. For example, the commonly-accepted terminal velocity of a free-falling human is around 120 mph. The terminal velocity of a free-falling cat is around 60 mph. (source) Therefore, air resistance alone will make it take longer than 10 seconds for gravity to pull an object to the ground from the towers' former height. On page 305 of the 9/11 Commission Report, we are told, in the government's "complete and final report" of 9/11, that the South Tower collapsed in 10 seconds. Here is the exact quote: "At 9:58:59, the South Tower collapsed in ten seconds". (That's the government's official number. Videos confirm that it fell unnaturally, if not precisely that, fast. See for yourself: QT Real) But as we've just determined, that's free-fall time. That's close to the free-fall time in a vacuum, and an exceptionally rapid free-fall time through air. But the "collapse" proceeded "through" the lower floors of the tower. Those undamaged floors below the impact zone would have offered resistance that is thousands of times greater than air. Recall that those lower floors had successfully supported the mass of the tower for 30 years. Air can't do that. Can anyone possibly imagine the undamaged lower floors getting out of the way of the upper floors as gracefully and relatively frictionlessly as air would? Can anyone possibly imagine the undamaged lower floors slowing the fall of the upper floors less than would, say, a parachute? It is beyond the scope of the simple, but uncontested, physics in this presentation to tell you how long a collapse should [sic] have taken. Would it have taken a minute? An hour? A day? Forever? Perhaps. But what is certain, beyond any shadow of a doubt, is that the towers could not have collapsed gravitationally, through intact lower floors, as rapidly as was observed on 9/11. Not even close! Because, as you may recall, not only was much energy expended in causing the observed massive high-speed sideways ejections, but virtually all the glass and concrete was In order for the tower to have collapsed "gravitationally", as we've been told over and over again, in the observed duration, one or more of the following zany-sounding conditions must have been met: However, none of these physics-violating conditions can be accounted for by the official government conspiracy theory of 9/11, nor by any of the subsequent analyses designed to prop up the official theory of 9/11. Bottom line: the government/PBS/PM/SA explanation for the WTC collapses fails the most basic conservation-of-energy reality check. Therefore the government/PBS/PM/SA theory does not fit the observed facts; the notion of a "pancake collapse" cannot account for what happened. The "pancake collapse theory" explanation is impossible, and thus absurd. It is utterly impossible for a "gravitational collapse" to proceed so destructively through a path of such great resistance in anywhere near free-fall times. This fact debunks the preposterous contention that the observed WTC collapses can be blamed solely upon damages resulting from aerial assaults. So, to the extent that people accept the ridiculous "pancake collapse" explanation, Gates' other premise, that people know what they saw, is also incorrect. It is left to the reader to decide if his conclusion, which was based upon two incorrect presumptions, is also flawed. The purported "gravitational" collapse (video) of World Trade Center building 7, which was hit by zero aircraft, and which also vertically collapsed in within a second of free-fall-time-in-a-vacuum later that same day, similarly fails this same conservation-of-energy analysis. The explanation for how and why so many highly-accredited and credentialed people all so miserably failed to check the "pancake collapse" theory, by giving it this basic reality check, is beyond the scope of this simple physics discussion. Post Comment Private Reply Ignore Thread Top • Page Up • Full Thread • Page Down • Bottom/Latest Begin Trace Mode for Comment # 4.
#4. To: Robin, Brian S, Christine, Honway, Aristeides, Diana, All (#0)
With all the resistance in the pilup of material, it's not going to be the perfect equivalent of dropping a brick from the same height, that's common sense. The difference between the mechanics of the 9-11 WTC 'collapses' and a scientific free-fall isn't worth discussing; by any pragmatic/common sense standard, it was a "free-fall!"
#5. To: SKYDRIFTER (#4)
I think this paragraph helps explain it: not only was much energy expended in causing the observed massive high-speed sideways ejections, but virtually all the glass and concrete was
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