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originally posted by: CALGARIAN
Yes, this was def FINALLY resolved... back in 2001.
The MASSIVE amount of fire debris that crushed the side of the building caused it to collapse.
WHY (or who) would have planted explosives in WTC7? lol.
I don't get these 9/11 truther nutters... I bet none of them will recognize the impervious logic you used to address the so called evidence presented in the OP. Don't worry though, I noticed it.
Death Ends 1,600-Mile Flight Of Learjet Stolen by Mechanic
A flight mechanic who did not have a pilot's license stole a private jet in Virginia early today and flew it 1,600 miles to Denver, where he shot himself to death as the authorities closed in, officials said.
They said they did not why the mechanic, Mike Christiansen, 24 years old, of Newport News, Va., stole the twin-engine Learjet 36-A.
He was found dead at the controls moments after landing the plane that had been stolen from his employer, Flight International, at Patrick Henry International Airport in Newport News.
www.nytimes.c...y-mechanic.html...
The Crash of Payne Stewart's Lear Jet
At 1327:13Z, the controller from the Jacksonville ARTCC instructed the pilot to climb and maintain flight level (FL) 390 (39,000 feet (12,000 m) above sea level). At 1327:18Z (0927:18 EDT), the pilot acknowledged the clearance by stating, "three nine zero bravo alpha." This was the last known radio transmission from the airplane, and occurred while the aircraft was passing through 23,000 feet (7,000 m). The next attempt to contact the aircraft occurred six minutes, 20 seconds later (14 minutes after departure), with the aircraft at 36,500 feet (11,100 m), and the controller's message went unacknowledged.
The controller attempted to contact N47BA five more times in the next 4½ minutes, again with no answer.
First interception
About 1454Z (now 0954 CDT due to the flight's crossing into the Central Time zone), a U.S. Air Force F-16 test pilot from the 40th Flight Test Squadron at Eglin Air Force Base, Florida, who happened to be in the air nearby, was directed by controllers to intercept N47BA. When the fighter was about 2,000 feet (610 m) from the Learjet, at an altitude of about 46,400 feet (14,100 m), the test pilot made two radio calls to N47BA but did not receive a response.
The F-16 pilot made a visual inspection of the Lear, finding no visible damage to the airplane. Both engines were running, and the plane's red rotating anti-collision beacon was on (standard operation for aircraft in flight). The fighter pilot could not see inside the passenger section of the airplane because the windows seemed to be dark. Further, he stated that the entire right cockpit windshield was opaque, as if condensation or ice covered the inside.
He also indicated that the left cockpit windshield was opaque, although several sections of the center of the windshield seemed to be only thinly covered by condensation or ice; a small rectangular section of the windshield was clear, with only a small section of the glare shield visible through this area. He did not see any flight control movement. About 1512Z, the F-16 pilot concluded his inspection of N47BA and broke formation, proceeding to Scott AFB, Illinois
originally posted by: DerekJR321
Energy usage can not generate NEW energy. The force used to crush the floor below uses up the momentum and energy. It doesn't create NEW energy to continue down 70+ floors.
originally posted by: DerekJR321
Let's just look at WTC1. The impact was between the 92nd and 98th floors. The total height was 110 stories. So if we start at the highest point of impact (the 98th).. that leaves us 12 intact stories. If we were to completely remove floors 98 to 92, and drop the remaining 12 stories down onto the structure.. at BEST we can expect that only up to the 80th floor would be destroyed,
--- discussion about Charles M. Beck's three papers from Cornell University :
arxiv.org/PS_cache/physics/pdf/0609/0609105v8.pdf
Title : Mathematical Models of Progressive Collapse.
REFUTE THAT, by Charles M. Beck.
Found those Beck papers related posts of mine and the usual opponents back in this same thread in this post.
Do then read also from that thread its pages 14 to 25.
It's the pages long discussion about these three Charles M. Beck papers. They couldn't refute them. Not by far.
Perhaps you get interested enough to Read this whole, full thread you now reading one post from. It has become my repository for all my important 9/11 information.
For the OS doubting readers, hardcore OS trusters show time and time again, they do not read our links with an open mind, if they read them at all.
Found those Beck-posts easily back through the ATS Search, by using the words " labtop Charles M. Beck "
Beck wrote three papers by the way, on the WTC 2-South and 1-North towers collapses, and the WTC 7 collapse, all very advisable to read and then trying to understand and refute them, or find additional fine-tuning areas of interest, which Beck should include in his newer versions.
I would like to see him refute the faint possibility of any form of lateral displacement of vertical core or exterior steel columns (buckling), caused by overloading of one or more columns.
Don't forget he proves that if even half of all vertical exterior and core columns are removed from his equations, the remaining half of them which he also let loose half of their strength, were still several orders stronger enough to not buckle.
The inwards "buckling" of rows of exterior columns seconds before collapse initiations of the two Twin Towers were in fact "pulling inwards" caused by displaced floor areas, which were pulled down near the core, by a row of cut core columns where that floor area was still firmly connected to and also to that exterior column row. His calculations show there is no other possible explanation for that inward bowing of those exterior panels situated all on the rim of one floor. At near center positions on that exterior, where the floor plate areas were connected perpendicular to that exterior columns area.
Links are in my posts in this thread's pages, and in my LaBTop Pearltrees pages HERE.
Especially extensively discussed in my 27 L.Abtop Academia.edu pages, together with a lot more related mathematical, architectural and engineering papers.
Listen to this FOIA freed from NIST, Trinity Church clip its TWO HUGE EXPLOSIONS :
www.mediumrecords.com...
-snip-
audio print-out of the deep explosion sound and the rest of the WTC-7 collapse sound signals in this FOIA freed video :
Shaped Charge explosion compared to phoneboot explosion heard from WTC 7, found by Insolubrious :
www.youtube.com...
Insolubrious : Of course the debunkers will like to claim this video is fake. But this explosion sound has actually been corroborated by the explosion captured in Steve Spak's video, confirming it's authenticity. This one :
www.youtube.com...
Steve Spak filmed from 214 Broadway, which is 2 blocks east of WTC 7. Building on the left is a Chase Manhattan bank. It seems to me however, as recorded between 17 and 18 o'clock p.m. on 9/11/2001, if you note the vertical shadow line on the back wall of the Millennium Hotel, just left of that left flag, at the 0:25 seconds video time. And thus not around 10 o'clock a.m. as Insolubrious seems to think.
If waypastvne with his shadow software could assist to confirm this, than we hear thus a shaped charge or other explosion, around the time WTC 7 came down. Spak must have stood at the corner of Fulton Street and Broadway, so to see.
Use Fig. 2-1 Map showing the World Trade Center location in lower Manhattan. With those pink colors. From NIST NCSTAR 1-8, WTC Investigation. At 0:40 Steve's position is indicated with that thick red arrow.
originally posted by: CALGARIAN
WHY (or who) would have planted explosives in WTC7? lol.
The military industrial complex was financially broke and needed to get rid of evidence that was stored in wtc7.
They needed new orders in their books. They had the needed contacts to NORAD...
No matter exactly who committed the crime, the fact remains that the federal government has gone to great lengths to coverup any proper investigation.