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originally posted by: Lumenari
originally posted by: face23785
a reply to: Lumenari
9/12 headlines should've been "Buildings demo'd by silent explosives"
Nanothermite doesn't explode though...
Just gets really hot.
Hot enough to cut through structural steel rather easily.
I'm out of this thread because of my earlier post...
The whole controlled demolition theory fell flat when introduced to a population that can't do math, much less think critically.
Have a good night.
originally posted by: micpsi
originally posted by: Lumenari
originally posted by: BrianFlanders
The whole "controlled demolition" argument was out of gas pretty much as soon as it started.
Yea, since structural steel reaches an elasticity point about 500 degrees centigrade above what is possible with a hydrocarbon fire...
The whole controlled demolition theory fell flat when introduced to a population that can't do math, much less think critically.
In a few days I'll go back to the oilfield and see how many of our wellsite flares have melted because of the hydrocarbon fires they produce.
/facepalm
If the beams had bent due to heat and then failed, pieces of the towers would have collapsed some of the way but the WHOLE tower would NEVER have collapsed all the way down as one entity because all 240 core columns broke at the very same time.
If you want to complain about a population that cannot think critically, perhaps you should start with yourself.......
originally posted by: democracydemo
a reply to: neutronflux
Still forcing "visible core" falsehood i see. Debunked: www.abovetopsecret.com...
WTC 1 core collapse
m.youtube.com...
Visible core columns
www.dailymotion.com...
World Trade Centre Core Collapsing
m.youtube.com...
9/11 Footage shows core of both towers standing; Debunks Basement BombsTheory
m.youtube.com...
9/11 and the Science
of Controlled Demolitions
www.skeptic.com...
3WHAT ABOUT THE ALMOST FREE-FALL COLLAPSE OF THE TWIN TOWERS? The key is the “almost” modifier. If I told you I was making almost $100,000 and you found out I was making only $67,000, you’d say I was exaggerating. So stop exaggerating the collapse speed of the WTC Towers! The 80,000 tons of structural steel slowed down the collapses of the Twin Towers to about ⅔ (two-thirds) of free-fall.3 And the core collapsed at about 40% of free-fall speed, coming down last.4 According to Richard Gage: “To bring a building symmetrically down, what we have to do is remove the core columns.” But on 9/11 the stronger core columns came down last, which violates this supposed most fundamental rule of controlled demolition.
Collapse of the World Trade Center
Total progressive collapse
en.m.wikipedia.org...
The collapse of the World Trade Center has been called "the most infamous paradigm" of progressive collapse.[47] Once the collapse initiated, the mass of failing floors overwhelmed the floors below, causing a progressive series of floor failures which accelerated as the sequence progressed. Soon, large portions of the perimeter columns and possibly the cores were left without any lateral support, causing them to fall laterally towards the outside, pushed by the increasing pile of rubble. The result was that the walls peeled off and separated away from the buildings by a large distance (about 500 feet in some cases), hitting other neighboring buildings. Some connections broke as the bolts snapped, leaving many panels randomly scattered.[48] Significant parts of the naked cores (about 60 stories for the North Tower and 40 for the South Tower) remained standing for a few seconds before they also collapsed.[44]
ine.uaf.edu...
Project Dates
May 1, 2015 - April 30, 2018
www.wtc7evaluation.org...
Dr. Leroy Hulsey gave the following update on March 27, 2018:
To all who have been following the University of Alaska Fairbanks study on the collapse of World Trade Center Building 7:
First, I would like to thank you for your interest in and support of the study.
We had planned to release our findings for public review early this year. However, research often takes unexpected turns, and the more complicated the problem, the more difficult it is to predict the completion date. We are still in the process of studying hypothetical collapse mechanisms and attempting to simulate the building’s failure. Our goal is to determine, with a high degree of confidence, the sequence of failures that may have caused the observed collapse and to rule out those mechanisms that could not have caused the observed collapse.
We will release our findings for public review when we are sure we fully understand the mechanisms that are likely to have caused the observed collapse and those that clearly did not occur and could not have caused the observed collapse. We expect to publish our findings later this year, but we will refrain from naming a completion date, given the unpredictability of the research process.
Again, we thank you for your interest in our study and we appreciate your patience as we strive to bring a truly scientific answer to the important question of how WTC 7 collapsed on September 11, 2001.
Dr. J. Leroy Hulsey
Chair, Department of Civil and Environmental Engineering
University of Alaska Fairbanks
What I don’t understand about the “people” who follow the terrorist narrative is they don’t have any questions, don’t have suspicions that maybe, don’t seem to think beyond what they are told.
originally posted by: samkent
a reply to: Raggedyman
What I don’t understand about the “people” who follow the terrorist narrative is they don’t have any questions, don’t have suspicions that maybe, don’t seem to think beyond what they are told.
Maybe they have never been presented with an all encompassing alternative theory.
It's been almost 18 years. Where is it?
AE911 hasn't done it.
University of Alaska hasn't done it.
Just a bunch of random unsubstantiated claims.
a reply to: pteridine
Nanothermite again? Paint on? This is one of the theories that can be embraced only by those truly ignorant of thermodynamics. Steven Jones is one of them which is surprising because he is supposed to be a physicist.
Ask your brother what the Cp of structural steel is and ask him to estimate the mass of the structure. Then calculate the quantity of heat produced from a thin later of painted on thermite. Knowing this, he can determine that the steel would only warm slightly if the reaction could even be sustained on a heat sink like a steel beam. .
Hmm, according to some witnesses, there was work done on some levels at the WTC just prior to the attack and security cams were turned off. Claims of dust particles everywhere in offices when people went in to work.
All but 1 (shady) security camera videos at the Pentagon never released. For national security? lol
Blink Comparator Views of
the Plane at the Pentagon
By David Chandler, based on prior work by Ken Jenkins
911speakout.org...
Note that when barrel distortion is eliminated, the image compression near the edge of the field is eliminated, so the plane appears longer, with proportions resembling a 757. (Remember, the plane is also moving toward us at about a 45 degree angle.)
One feature of the plane image helps us identify it as an American Airlines plane. Note the purple stripe along the side of the plane. American Airlines planes have parallel red and blue stripes. At the small scale of the original image it is quite likely that this purple stripe is a merger of the color information from a red and a blue stripe.
www.judicialwatch.org...
Judicial Watch lawsuit to obtain previously unseen footage of Flight 77 striking the Pentagon on September 11, 2001.Judicial Watch filed a Freedom of Information Act request on December 15, 2004, seeking all records pertaining to camera recordings from the Sheraton National Hotel, the Nexcomm/Citgo gas station, Pentagon security cameras and the Virginia Department of Transportation.On May 16, 2006, Judicial Watch forced the Department of Defense to release video footage of American Airlines flight 77 crashing into the Pentagon on 9/11. The videos had been kept secret by the DoD until Judicial Watch filed the FOIA request and, eventually, a lawsuit stating that the DoD had “no legal basis” to refuse release of the footage. On September 15, 2006, Judicial Watch released videos from the CITGO gas station near the Pentagon, which was released by the FBI in response to the FOIA request.Judicial Watch is committed to completing the public record of the 9/11 attacks.
The 85 Pentagon Area Surveillance Cameras
www.9-11tv.org...
Why very few cameras captured the impact event
There are a number of valid reasons why only 4 of the 85 videos were released by the FBI in response to a FOIA (Freedom Of Information Act) request filed in 2004, which was fulfilled in 2006. Because of a number of factors (listed below and detailed in the footnotes) only 2 of the 85 cameras captured any useful footage of the plane-impact event[1].
Most of those 85 cameras were not aimed in the direction of the Pentagon and/or at the part of the Pentagon in question.
Most cameras were located a considerable distance from the impact event, and virtually all surveillance cameras had wide-angle (fisheye) lenses which cause some geometric distortion and render distant objects at very low resolution.
Many cameras had obstructed views of the Pentagon impact area.
In 2001, virtually all surveillance cameras had low spacial resolution.
In 2001, most surveillance cameras recorded at low frame rates (low temporal resolution), in the range of one to eight frames per second. By comparison, American TV is most often 30 frames/second.
The high speed of the plane, accelerating to around 550 mph, resulted in image blurring, and offered a low chance of catching more than a single frame of the plane, given the low-recorded frame rate (one frame/sec).
Not a shread of evidence of a plane crash in Pennsylvania. Weird
Title: Memories of Flight 93 crash still fresh at 5-year anniversary
www.post-gazette.com...
Veteran FBI agent Michael Soohy had been to airplane crash scenes before, and he thought he knew what to expect: chaos, bodies, a hulking wreck of a jet.
"I don't think anyone expected to see what they didn't see," said the 50-year-old who grew up near Johnstown. "It's almost like a dart hitting a pile of flour. ... The plane went in, and the stuff back-filled right over it."
originally posted by: Infoshill
a reply to: pteridine
Nanothermite again? Paint on? This is one of the theories that can be embraced only by those truly ignorant of thermodynamics. Steven Jones is one of them which is surprising because he is supposed to be a physicist.
Ask your brother what the Cp of structural steel is and ask him to estimate the mass of the structure. Then calculate the quantity of heat produced from a thin later of painted on thermite. Knowing this, he can determine that the steel would only warm slightly if the reaction could even be sustained on a heat sink like a steel beam. .
Well the official story states that sustained office fires alone warmed the steel above slightly, triggering total the heat sink failure...
Phone calls supposedly made from cell phone in a plane at 40,000 ft altitude. Proven impossible.
a reply to: neutronflux
Please quote the NIST reports that make such a statement.