WTC1: Roofline pressure pulses seen before collapse
WTC1: Roofline pressure pulses seen before collapse
The video clip linked below is by Etienne Sauret.
There are clear, rather powerful variations in pressure along the roofline near the SW, SE and a bit at the NE corners during moments leading up to collapse initiation.
These pressure variations can be seen in momentary concentrated smoke puffs aimed upwards at the following times on the clip
SW corner (to the right): :07, :16, :21, :27
SE corner (to the left): :30
I'm counting 11 in total, 5 from the SE corner.at least 6 distinct accelerated pulses from the SW corner
The aspect I've found most strange is how, when watching the clip, I know at what moment the collapse begins by the rapid, concentrated smoke release upwards from the SE corner just before the building starts to move (at 0:31)
These puffs...
1) are so large they are easy to notice
2) accelerate upwards faster than the surrounding smoke movement
3) are always near or at the corners of the roof
Please notice that the last of these pulses, from the SE corner, is perfectly timed with collapse initiation. Intiation begins just as the pulse shoots upward. The question is: What is actually causing these? There must be localized sources for such distinct phenomena.
Created on 10/24/2010 12:17 AM by admin
Updated on 03/24/2011 12:22 PM by admin
