WTC-7 Mysteries FINALLY Solved.

A PICTURE is worth a THOUSAND WORDS :

DEEP SOUND at WTC-7 (4s pass):

deep explosion sound

NINE

DENT at WTC-7 (after 4s):

8.5s for 9 EXPLOSIONS CUTTER CHARGES :

That same difference in amplitudes strength is only registered during demolitions.



"Now I think that there is no longer a question that there was energy activity at the Murrah Building in addition to the original explosion, and we simply need to determine the source of that activity," Brown told THE NEW AMERICAN. The leading contenders for the source of that energy are either another explosion inside the building or the falling of the building debris.

But the demolition seismic data from the Murrah site make the latter explanation no longer tenable, says Brown.

The demolition charges were detonated in five groups, he notes, and the oscillations on the seismogram from the site correspond closely with those explosions. " Even the smallest of those detonations had a larger effect on the recording than the collapse of the building , which demonstrates that the explosives were much more efficient at exciting the ground motion than the collapse of three-fourths of the building. So it is very unlikely that one-fourth of the building falling directly after it was bombed on April 19th could have created an energy wave similar to that caused by the large [truck bomb] explosion." The most logical explanation for the second event, says Dr. Brown, is "a bomb on the inside of the building."

edit on Mon Jul 27 2015 by DontTreadOnMe because: code doesn't work for titles



WTC 7 - HUGE DEEP EXPLOSION (by Charles Ewing Smith) :Thatis the only clearly audible explosive artifact in this WTC 7 collapse video.If that sound propagated through the air, it will have traveled about 2 seconds to the camera microphone which so to see was situated about 650 m away from WTC 7. Plus the 2 seconds waiting before the start of the kinking of the east penthouse roof gives about 4 real time seconds time between the explosion and the first sign of it, the kink.Then we have the 8.5 seconds interval for both penthouses to disappear and before the whole roof line starts sinking uniformly, starting the global collapse.In which interval we can hear, in the Ashley Banfield video interview, those(2 + 7) explosions going off, just before WTC-7's global collapse begins,That's 12.5 seconds in totality that pass between that deep audible explosion sound and the nine audible explosions at WTC 7, and the start of its global collapse.Thus, that deep sound can't have been the final blow that obliterated SEVEN stories worth of resistance in that WTC 7 building. Which caused the first 2.25 seconds of WTC 7's global collapse to be a FFA (free fall acceleration) event, which clearly indicates the use of explosives. Which explosives were those 9 explosive cutter charges audible in the Ashley Banfield interview near WTC-7. See below.The Cianca photo with the incorrect time stamp, which should be 5:20:37 p.m. :It seems to me, that the seismologists at LDEO in 2001 were informed about that deep sound in that above CBS video. Which was their reason to set the start of the total collapse sequence in 2001 as EDT 17:20:33. That was the time that sound could be heard in that video.b]The Ashley Banfield WTC-7 interview, posted by David Chandler :You hear these 9 explosions in that video, ending 2 secs before the whole roof rim line began to sink down as one entity, which was the start of the global collapse of WTC-7. That began with a period of 2.25s free fall. Which means that in those 2.25s period, there was no resistance of importance over a height of 7 floors.When the 33 upper storeys went first through those lower demolitioned 7 storeys as if it was hot butter, and then they hit the still erect 7 lowest floors, and deceleration kicked in when the crushing started, which ended at the Manhattan bedrock.The simple fact, that the amplitudes registered by the LDEO seismic station at Columbia University during those 8.5s of WTC-7's collapse sequence, were bigger than the amplitudes that were registered after the whole building started to come down as a result of those explosions, indicates that those first amplitudes must have had an explosive origin.See the work of Prof. Brown from Oklahoma City University, who as the first one ever, noticed that demo charges exploded, resulted in bigger amplitudes than those resulting of the whole to be demolished structure, after the explosions,coming down.Dr Brown, now professor, found that explosives going off, on or near columns and/or beams, are much more efficient at exciting ground motion than building collapses. And thus appear on seismograms as much higher amplitudes :And not a mystical, two times only occurring "reflective layer" causing an "echo effect" in the seismograms from the Murrah building in OKC, when it was bombed in 1995, and its remains were blasted down a few weeks later. These are those 2/3 remains, to be blasted, and recorded by Prof. Brown on his seismographs during those demolition blasts :