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Originally posted by Rigel Kent
just one example of the total collapse of a steel framed, sky scraper due to fire.
That is what you are claiming isnt it?
Youtube videos with vector overlays and comments very often are in fact evidence,
Originally posted by dereks
You must have missed the bit where 2 aircraft hit the buildings, or WTC 7 was severely damaged by a falling building....
Originally posted by dereks
Originally posted by Rigel Kent
just one example of the total collapse of a steel framed, sky scraper due to fire.
That is what you are claiming isnt it?
You must have missed the bit where 2 aircraft hit the buildings, or WTC 7 was severely damaged by a falling building....
Youtube videos with vector overlays and comments very often are in fact evidence,
Yes, evidence that the people making them have not much knowledge of physics!
Originally posted by Rigel Kent
Any video of the falling building is "evidence." It is a video account of what happened.
Originally posted by dereks
People that do not understand physics making drawings on video's is not evidence....
Originally posted by Rigel Kent
Not needed......
Perhaps you can surprise us all by providing one, just one example of the total collapse of a steel framed, sky scraper due to fire.
That is what you are claiming isnt it?
just a point of clarification,
Youtube videos with vector overlays and comments very often are in fact evidence,
This kind of evidence is called "circumstantial evidence"
Not only do you need to learn more about engineering, metallurgy and heat ("heat" being a specialist branch of physics).
You could also use some further education in LAW.
Originally posted by REMISNE
Also the fact that if building 7 collapsed on its own it would have fallen to the side that was damaged and not in its own footprint.
Not needed......
Perhaps you can surprise us all by providing one, just one example of the total collapse of a steel framed, sky scraper due to fire.
That is what you are claiming isnt it?
The NIST survey of 22 fire-induced building collapses from 1970-20021 identified a variety of conditions, materials, locations, and buildings. Fifteen cases were from the U.S., two from Canada, and five from Europe, Russia, and South America. The numbers of fire collapse events can be categorized by building material as follows:
Concrete: 7 (1 in Pentagon 9-11 event)
Structural steel: 6 (4 in 9-11 WTC events)
Brick/Masonry: 5
Wood: 2
Unknown: 2
Three of the these events were from the 1970s, another three from the 1980s, four from the 1990s, and 12 in 2000 and beyond. This temporal distribution is skewed towards more recent occurrences, as expected, both due to the magnitude of the WTC (counted as four events) and Pentagon (one event) disasters of 9-11 and the news media searches.
Originally posted by weedwhacker
MAJOR impact damage, from falling flaming debris from WTC Tower, and DIESEL fuel, under pressure, being sprayed around....gee....surprise!!!!
“The specifics of the fires in WTC 7 and how they caused the building to collapse remain unknown at this time. Although the total diesel fuel on the premises contained massive potential energy, the best hypothesis has only a low probability of occurrence.” [Federal Emergency Management Agency, 5/1/2002, pp. 1-17]
Engineers from the New York State Department of Environmental Conservation investigated oil contamination in the debris of WTC 7. Their principal interest was directed to the various oils involved in the Con Ed equipment. However, they reported the following findings on fuel oil: "In addition to Con Ed's oil, there was a maximum loss of 12,000 gallons of diesel from two underground storage tanks registered as 7WTC." To date, the NY State Environmental Protection Agency (EPA) and DEC have recovered approximately 20,000 gallons from the other two intact 11,600-gallon underground fuel oil storage tanks at WTC 7.
Based on the listings in Table 5.2, it is probable that the 20,000 gallons that were recovered were from the Silverstein Properties' emergency power system. The data obtained from Silverstein indicate that the pumping rate from their tanks was 4.4 gpm. If the Silverstein pump had started pumping at 10 a.m., when Con Ed shut down power to the building immediately following the collapse of WTC 2, and continued pumping until the collapse of WTC 7 at 5:20 p.m., less than 2,000 gallons would have been used. The residual 20,000 gallons found in the two 12,000-gallon tanks, therefore, can not be used as an indicator of whether or not the Silverstein generator sets were on line and running.
There is fairly broad agreement in the fire science community that flashover is reached when the average upper gas temperature in the room exceeds about 600°C. Prior to that point, no generalizations should be made: There will be zones of 900°C flame temperatures, but wide spatial variations will be seen. Of interest, however, is the peak fire temperature normally associated with room fires. The peak value is governed by ventilation and fuel supply characteristics [12] and so such values will form a wide frequency distribution. Of interest is the maximum value which is fairly regularly found. This value turns out to be around 1200°C, although a typical post-flashover room fire will more commonly be 900~1000°C. The time-temperature curve for the standard fire endurance test, ASTM E 119 [13] goes up to 1260°C, but this is reached only in 8 hr. In actual fact, no jurisdiction demands fire endurance periods for over 4 hr, at which point the curve only reaches 1093°C.
Originally posted by hooper
reply to post by ANOK
So again you are citing an earlier report (FEMA) that was superceded by a later report (NIST).
Don't work that way.
Originally posted by GenRadek
No you are incorrect. Apparently you are not from around here, Earth. You do not realize that newscaster CAN make mistakes, especially if the reports from which they are coming from MESS UP in the confusion. It happens. All the time, especially during a MAJOR breaking news story.
Originally posted by Alfie1
So, what is your explanation ? Was a foreign news outlet given a script and timetable of the days events to make sure they could follow along ?
Do you believe that ?!
Originally posted by Nutter
Originally posted by hooper
reply to post by ANOK
So again you are citing an earlier report (FEMA) that was superceded by a later report (NIST).
Don't work that way.
Der, der, der, der.
He's quoting the FEMA report about the fuel being recovered.
But, I guess according to you, that fact changed from FEMA's report to NIST's?