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DVD Video - Looks like the "conspiracy theories" really were true after all... |
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Most people don't know that there were actually 3 buildings which came
crashing down on the day of 9/11. The third building, WTC 7, can be seen here http://video.google.com/videoplay?do...32340306101329 There is no mention of this building in 911 Omission Report. Can fire make a building come crashing down at free fall speed? If you think it can, patent the idea and make billions in the demolitions industry! How do we know WTC 7 was demolished? If WTC 7 collapsed in 6 seconds, and it takes 6 seconds to free fall from the roof of WTC 7, then you got it - WTC 7 underwent a free fall. This means as the each floor was falling straight to the ground it did so without crashing into anything on the way. ONLY CONTROLLED DEMOLITION CAN ACCOMPLISH THAT! PROPOSITION 1: It took a total of 6 seconds for the roof of WTC 7 to reach the ground. This proposition is supported by the empirical, http://video.google.com/videoplay?do...32340306101329 Collapse start time: 17 seconds Collapse end time: 23 seconds Total collapse time: 23-17 = 6 seconds PROPOSITION 2: A free fall from a height equal to the roof of WTC 7 would take 6 seconds. This proposition derives trivially through (Galilean) kinematical considerations alone: Displacement = initial velocity * total time + 1/2 * acceleration * total time^2 or s = ut + 1/2at^2 where s = 174 m (height of building) u = 0 m/s (building was stationary prior to collapse) a = 9.8 m/s^2 (since gravitational field strengh averages at a constant) Thus, 174 = 0 t + 1/2 9.8 t^2 Solving for t t = sqrt( 2 * 174 / 9. = 5.9590 ~ 6 seconds schoenfeld.one@gmail.com |
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#2 |
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wrote:
> Most people don't know that there were actually 3 buildings which came > crashing down on the day of 9/11. > > The third building, WTC 7, can be seen here > > http://video.google.com/videoplay?do...32340306101329 > > There is no mention of this building in 911 Omission Report. > > Can fire make a building come crashing down at free fall speed? > Yes, mist definitely it can. > If you think it can, patent the idea and make billions in the > demolitions industry! Why? its far less controllable than systematic demolition or controlled explosions, generates more pollution, is more dangerous and moe expesnive. > > How do we know WTC 7 was demolished? > WE do not. Neither do you. You just believe what you want to believe. > If WTC 7 collapsed in 6 seconds, and it takes 6 seconds to free fall > from the roof of WTC 7, then you got it - WTC 7 underwent a free fall. > Exactly. Thats what heppens when you destroy the lower section of any building BY ANY MEANS to the pint at which a progessive collapse occurs. > This means as the each floor was falling straight to the ground it did > so without crashing into anything on the way. ONLY CONTROLLED > DEMOLITION CAN ACCOMPLISH THAT! > Utter *******s. Uncontrolled demolition is exactly the saame reult. > PROPOSITION 1: > It took a total of 6 seconds for the roof of WTC 7 to reach the > ground. This proposition is supported by the empirical, > > http://video.google.com/videoplay?do...32340306101329 > Collapse start time: 17 seconds > Collapse end time: 23 seconds > Total collapse time: 23-17 = 6 seconds > > PROPOSITION 2: > A free fall from a height equal to the roof of WTC 7 would take 6 > seconds. This proposition derives trivially through (Galilean) > kinematical considerations alone: > > Displacement = initial velocity * total time + 1/2 * acceleration * > total time^2 > > or > > s = ut + 1/2at^2 > where > s = 174 m (height of building) > u = 0 m/s (building was stationary prior to collapse) > a = 9.8 m/s^2 (since gravitational field strengh averages at > a constant) > > Thus, > 174 = 0 t + 1/2 9.8 t^2 > > Solving for t > t = sqrt( 2 * 174 / 9. > = 5.9590 > ~ 6 seconds > Totally irrelevant: you have missed the whole point. In a steel framed building once Euler buckling of a structure like that begins, the effect is rapid and dramatic. Euler buckling is an instability issue: once it starts it finishes..it does NOT happen gradually. You can test of for yourself by bulding a tower out of e.g. balsa wood and sticking a weight on top. Light a small fire in the base and watch.. Oh sorry. You don't do engineering do you? only conspiracy theory. Easier to believe that the whole thing is a Jewish plot than that the trade center and the adjacent buildings were simply not very well designed, and certainly not designed for the sort of stresses and temperatures they found themselves subjected to. In general a steel frame building is designed to withstand about 45 minutes of fire. In that time the building is expected to have been evacuated and the fire brought under some sort of control. In fact the buildings just about stood that long. What had not been anticipated was that they would be subjected to such a large fire for so long, with people trapped above it, and with no means of fighting it. The designers went only as far as the regulations and standards insisted that they should. No one insisted that, in the event that a very intense fire did continue for 45 minutes plus in the lower parts, that the structure should fail 'gracefully' : Indeed to engineer such a structure is a huge challenge. To do it economically is almost impossible. You probably want a geodesic type structure, and even those are not immune from catastrophic failure. If you have a real interest in understanding the truth, study some of the WWI airframse and the reports of how aircraft broke up under fire to get a bit of a picture. The Natural Philosopher |
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#3 |
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In message news:, The Natural
Philosopher sprach forth the following: > You just believe what you want to believe. You know you don't. Have. To live like a refugee. Fred Garvin, Male Prostitute |
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#4 |
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On Oct 17, 10:08 am, schoenfeld....@gmail.com wrote:
> Most people don't know that there were actually 3 buildings which came > crashing down on the day of 9/11. What does this have to do with Anime, Linux, DVDs or the TV series Angel????? even though I know it's a waste of time replying to trolls: > Can fire make a building come crashing down at free fall speed? > .... > If WTC 7 collapsed in 6 seconds, and it takes 6 seconds to free fall > from the roof of WTC 7, then you got it - WTC 7 underwent a free fall. Since the building took longer than 6 seconds to collapse, it is your kooky conspiracy theory that has collapsed at free fall speeds see: http://www.debunk911myths.org/topics...d_Trade_Center Free fall? [edit] Claim 7 World Trade Center fell in 6.8 seconds -- in free fall speed. [edit] Fact The collapse did not occur at free fall speed. It took 16 seconds, with the east mechanical penthouse beginning to collapse 8.2 seconds before any more obvious signs of total collapse (as seen on videos). www.debunking911.com/freefall.htm In every photo and every video, you can see columns far outpacing the collapse of the building. Not only are the columns falling faster than the building but they are also falling faster than the debris cloud which is ALSO falling faster than the building. This proves the buildings fell well below free fall speed. That is, unless the beams had a rocket pointed to the ground. selaboc |
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#5 |
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Dude... You forgot to mention that we never landed on the moon either.
Oh wait a minute... Your Rosie O'donnell arn't you?????? Robo-man |
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#6 |
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#7 |
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On Wed, 17 Oct 2007 18:02:28 -0400, "Robo-man" <> wrote:
> Dude... You forgot to mention that we never landed on the moon either. > > Oh wait a minute... Your Rosie O'donnell arn't you?????? > That would be "You're", ya ****in' idiot. Also, you forgot to mention "the plane that never hit the Pentagon", and her name is: Rosie O'Retard! Get yer **** together, boy. Herbert John \Jackie\ Gleason |
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