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Originally posted by billybob
i don't understand how anyone can watch the behaviour of the administration post-911(and pre-911, for that matter), and think that they used 911 to turn america into a near-dictatorship.
it is pretty much impossible to fight terrorism. you can't fight terrorists, but not terror.
Originally posted by ThroatYogurt
reply to post by tezzajw
The towers did not fall at free fall speed. "near" free fall is often the term used.
I have seen a video that shows closer to 18 seconds.
>>no accurate (I.e., undistorted (unless you have video from straight on, perpendicular-to-the wall-at-the-same-elevation)) distance reference.
I guess he's never heard of perspective correction. In some cases it's not even necessary to know the scene geometry to correct for perspective distortion, a (x,y) scaling map might be obtained from known lengths of objects at various locations in the scene. However crude, this sort of correction field can get you to within a few percent which is good enough for many purposes. He betrays his lack of understanding by claiming the ideal orthogonal shot does not need perspective correction. Oh yeah?
>>and a whole hell of a lot better analysts and equipment than the average troother
All that's needed is a computer and freeware. I can't speak for the 'average troother' (whatever that is), but I write my own software to extract data from frames.
Originally posted by PplVSNWO
You can't get a total collapse time from the videos, but you can find the acceleration for part of the fall that does have a clear start and end point from videos. See this thread: the911forum.freeforums.org... abut 1/3 down the page, posted by OneWhiteEye.