Amazing amateur video proves WTC1 & WTC2 were demolished

Rick Seigal, an expert internet TV webcaster who possessed security passes to the North and South Towers at the World Trade Center, filmed their collapse from the other side of the Hudson River. What makes his footage so more valuable than the TV footage exhaustively examined by many 9/11 investigators is that he was recording in sound as well, enabling anomalous bursts of background noise sounding like explosions to be correlated with what was seen a few seconds earlier on camera. His three remarkable videos (911 Eyewitness) can be downloaded at: [link to www.question911.com]

Here are my comments on them. They include remarks made in the videos themselves.

Video 1
1.Watch two helicopters fly THROUGH the smoke billowing from the South Tower a few seconds before it fell. What would their pilots be doing, putting their choppers at risk by flying so close to the buildings in such thick smoke? Trying to rescue people by throwing lines at them? No, because the choppers just fly past the tower and never slow up, let alone hover close by in an attempt to rescue people on window ledges.
2. See mysterious white flashes within the smoke at 19m37s and 19m47s into the film as helicopters fly past. These were not just puffs of white smoke. They were BRILLIANT white – like the flashes made by demolition explosives as they detonate.
3. Watch more flashes of light at 22m27s, 22m41s and 22m53s into the film. Can it be just coincidence that the flashes occur seconds before the collapse starts?
4. Watch a cloud of dust rise up from the BASE of the South Tower, followed by the microphone picking up an explosive rumbling from across the Hudson River. Then further mysterious rumblings. Were these coming from explosions in the basement of the tower? No explosion was visible at the time on the exterior of the tower, which had not yet begun to fall. Besides, explosions higher up in the tower would not have generated clouds rising up from the ground.
5. These rumblings create a new dust cloud rising from ground level. Several choppers fly by at the time the microphone picks up these rumblings. If the cloud had merely been issuing from the entrance of the building, these fresh billows would not be correlated each time with the delayed rumblings.
6. Two choppers fly by a few seconds after the collapse of WTC2. See the pyroclastic flow of dust, smoke and rubble spill over the Hudson River. Such flow can only be sustained by very hot air heated up by explosions, as in volcanoes. The kinetic energy due to a simple fall of the floors of the building could not have created such a high degree of pulverisation of concrete and such heat as to generate a strong pyroclastic flow through the streets and across the river.
7. Hear a live radio broadcast of an eyewitness at the Pentagon, saying that he saw a military helicopter encircle the Pentagon, then disappear behind the building where the helicopter landing zone was. He said that he next saw the explosion. What was this helicopter doing there at such a dramatic moment? Electronically guiding in the remote-controlled plane?
8. On several occasions, explosive rumbles are recorded a few seconds after the video showed fresh billows of smoke rose up from the base of the South Tower. The delay was due to the pressure waves crossing the Hudson River.
9. Nine series of rumbles were registered before the South Tower started to collapse. This confirms witness reports of earthquake-like rumbles and explosions before WTC2 began to fall.

VIDEO 2
1. Several choppers flew by without trying to rescue anyone. This is probably because of an argument that is now known to have developed between the police and the Fire Department of New York. Police choppers were ORDERED not to rescue anyone.
2. The collapse of the North Tower was a free-fall, making a nonsense of the still widely accepted pancake theory, which would require a time of descent significantly longer than that taken if the tower fell freely, for each floor would have offered resistance to upper floors, thus slowing their descent. Notice how the sound wave-forms show a series of peaks leading up to the one when the tower collapsed. They occur prior to ANY visible collapsing of the North Tower. Witnesses reported earthquake-like rumblings and street-level dust clouds before each tower collapsed. These claims were presumably ignored because no evidence combining video with sound was available at the time to confirm them.
3. Listen to the massive, explosive rumble and watch the cloud of dust accompanying it rise up from the street between two buildings on the waterfront before the North Tower starts to fall (about 16m38s into the video).
4. WTC1 was about 1.8 miles away from Siegal. Adjusting the speed of sound for the temperature of 65 degrees Fahrenheit, there would have been a delay of 9.2s for the pressure waves from explosions in the tower to reach him. He recorded four pressure wave peaks of short duration, starting at 17.0s before the tower is seen in the video to start to fall. Their profile is typical of high-power explosions.
5. At WTC7, news reporter Al Jones reported that he saw “what looked like a skyscraper implosion. Looked like it had been done by a demolition crew, the whole thing just collapsing down on itself.” He and his 10-10 WIN colleague expressed amazement that it had collapsed. A first-year medical student told a news reporter that “we heard what sounded like a clap of thunder.” He turned around and saw shockwaves ripping through WTC7 just before it started to crumble. These could only have been due to explosions, as nothing had yet started to fall, according to the video.

VIDEO 3
1. The clouds of debris and smoke created by WTC7 looked just like the dust clouds from a volcano. There was NO pancaking of floors whose supports had been weakened by fire. Even though there was fire only on two floors at the time, WTC7 fell as one WHOLE unit, just like the controlled demolition that, in fact, it was. By removing the sound delay, the first explosive rumbling was recorded 9.5s before the building started visibly to collapse. The cloud of material looked and moved just like a pyroclastic flow from a volcano. This indicates hot air created by explosions. Yes, there was minor fire on two floors of the building. But it could not have heated the air around and inside WTC7 sufficiently to create a pyroclastic flow of debris. Powerful explosions were needed for that.
2. Building 7 collapsed in a nearly perfectly vertical motion at near the rate of free-fall. The first sign of the collapse was the falling of the penthouse, immediately followed by the falling of the whole facade. It fell straight-down and its barely more than 6-second time of total collapse was half a second faster than freefall in air (7.0 seconds)and only half a second slower than in a vacuum. (An object would take 6.0 seconds to fall from the height of WTC7's roof - 174 metres - in a vacuum.) This short time indicates freefall in almost a vacuum. Such a vacuum is characteristic of an explosion that expels air, where the structure is literally “pulled” down by a controlled demolition because it falls more quickly than it would in air. Hence, the term “pull” used in the demolition industry. Supporting evidence for a controlled demolition is:

A. Debris fell neatly within the footprint of the building.
B. An eyewitness heard a loud “clap of thunder” and saw a “shockwave” rip through the building, blowing out windows, BEFORE the ground floor exploded, and “a second later” the building came down (note: there were no fires on the ground floor that could have weakened the building at this level. The outside of the building had received some damage, but far less than what would be necessary to cause collapse. Even then, such collapse would have been partial, not wholesale. Not even the FEMA investigators could explain this feature. No, of course not! Because it is consistent only with a controlled demolition!
C. Siegal’s meter recorded a large rumbling 9.5s before any signs of ‘collapse’ were visible.

3. The arc of the trajectory of falling debris from the North Tower did not match that of an object either falling from rest or projected horizontally. There were visible UPWARD projections of material in a symmetrical pattern about the vertical axis of the building that follow the trajectory of a projectile initially fired upwards. Simple collapse of floors could not have created such violent, upward motion. Nor could it have created enough kinetic energy to pulverise large concrete blocks into vast amounts of dust. Only powerful explosives could achieve that.
4. According to FEMA’s preliminary report, WTC 1 and WTC 2 created seismic shocks of, respectively, 2.3 and 2.1 on the Richter scale. The duration it gave for the former was 8 seconds, which is far too short to represent the collapse of debris. The difference of 0.2 in the two magnitudes is mysteriously high, for it implies that the energy generated in the collapse of the North Tower was nearly twice that for the South Tower, yet they should have been the same because they were virtually identical buildings, the difference in their height being only six feet. This huge difference in the energies released by their falls despite being similar buildings can be explained only if different amounts of explosives were used to demolish them.

This remarkable amateur video and its soundtrack provides convincing evidence that the North and South Towers were demolished by a series of explosions, some of whose shockwaves can be heard before either of them starts to fall. It demolishes once and for all the official story that both buildings collapsed after being weakened by fires.