[Peace-discuss] Dead Horse

Thu Jun 21 20:03:21 CDT 2007

links to the below, where you can see the images and photos are:
   
  http://911research.wtc7.net/wtc/analysis/wtc7/speed.html
   
  http://911research.wtc7.net/wtc/analysis/wtc7/demolition.html

Chuck Minne <mincam2 at yahoo.com> wrote:
      Rate of Building 7's Fall   WTC 7's Facade Plunged at a Nearly Free-Fall Rate   One of several features of the total collapse of WTC Building 7 that is common in controlled demolitions is the rapid descent of the building. Several videos captured the descent of WTC 7's facade from the north. A video taken from West Street about 1000 feet from the building shows the north facade in considerable detail as it descends. The following montage was created using frames from that video separated by one-half second intervals. 
           facade movement  free-fall      frame  seconds  displacement, floors  displacement, feet  seconds  displacement, feet  difference, feet    0  0.0  0   0.0  -0.65  0.0  0.0    1  0.5  0   0.0  -0.15  0.0  0.0    2  1.0  0.2  6.0  0.35  2.0  -4.0    3  1.5  1.0  12.0  0.85  11.6  -0.4    4  2.0  2.4  28.8  1.35  29.2  -0.4    5  2.5  4.5  54.0  1.85  54.8  +0.8    6  3.0  7.3  87.6  2.35  88.4  +0.8    7  3.5  10.7  128.4  2.85  130.0  +1.6    8  4.0  14.2  170.4  3.35  179.6  +9.2  The table above contains data on the downward displacement of the northwestern corner of WTC 7 over the period of four seconds shown in the image slices comprising the montage. The red rulers superimposed on the image slices demarcate floors. Displacements were measured by comparing the rulers to the roof of the white building in the foreground. The displacements in feet were computed from the displacements in floors using the estimated floor spacing of 12 feet. The error margin in
 placing and reading the rulers is about 3 feet. 
  The displacement of an obect in free-fall is shown in columns to the right of those showing the facade movement. The free-fall distances at the half-second intervals are based on the object being released 0.15 seconds after the time coordinate of the second image slice. 
  The rightmost column gives the free-fall distances minus the facade displacements. The differences are within the estimated margin of error for the facade displacement measurements for all but the first and final frames. This shows that the facade of WTC 7 accelerated downward at very close to the rate of free-fall in at least its first three seconds of descent, 
   
    Building 7's Collapse   Features of a Textbook Implosion                          These three images (cropped from larger photographs) show WTC 7 at three different moments in its collapse. The total collapse of WTC 7 at 5:20 PM on 9/11/01 shows all of the features of an implosion engineered through controlled demolition. 
  Controlled demolition is the use of pre-positioned explosive charges to destroy structures. Depending on the nature of the structure and constraints imposed by its surroundings, a controlled demolition may require a great deal of precision in its planning and execution. That is especially true of tall steel buildings in urban settings, given the natural tendency of such structures to topple. Controlled demolitions of buildings in cities are designed to implode the structures, making them sink into their footprints and fold in on themselves into a small consolidated rubble piles 
  Observing the collapse of 47-story WTC 7 shows it to have all of the features of an implosion engineered by controlled demolition.     
   The collapse of the main structure commences suddenly (several seconds after the penthouse falls).   
   The building sinks in a precisely vertical manner into its footprint.   
   Puffs of dust emerge from the building's facade early in the event.   
   The collapse is total, producing a rubble pile only about three stories high.   
   The main structure collapses totally in under 7 seconds, only about a second slower than it would take a brick dropped from the building's roof to reach the ground in a vacuum. 
  -


  But judge for yourself, don't be afraid, Watch This or This
   
  
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  But judge for yourself, don't be afraid, Watch This or This
   
  
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