Victims' Families Want To Air New 9/11 Truth Ad

IMO the only thing they got wrong was the "1st time in history" quote.
my guess is that the others ( steel buildings destroyed by fire) did not fit their criteria.



the thermal expansion theory is the only one that fits all the evidence.
since they tested for explosives and other accelerants and found that it was highly improbable

no test where ever done for explosives or accelerants you are talking out your ass...again

to set these without being detected and no one else come forward with a competing theory that has any scientific merit or credibility of any kind ,it only make sense to any reasonable person to agree with the people who do safety and standards for a living.

science is not guessing something would probably be too hard to do
 
no test where ever done for explosives or accelerants you are talking out your ass...again


science is not guessing something would probably be too hard to do
I have no idea what you read but this is what I wrote:they tested for explosives and other accelerants and found that it was highly improbable to set these without being detected and no one else come forward with a competing theory that has any scientific merit or credibility of any kind ,it only make sense to any reasonable person to agree with the people who do safety and standards for a living. :eusa_whistle:


my want to rethink who's ass is talking here:

Did investigators consider the possibility that an explosion caused or contributed to the collapse of WTC 7?
Yes, this possibility was investigated carefully. NIST concluded that blast events inside the building did not occur and found no evidence supporting the existence of a blast event.

In addition, no blast sounds were heard on the audio tracks of video recordings during the collapse of WTC 7 or reported by witnesses. According to calculations by the investigation team, the smallest blast capable of failing the building's critical column would have resulted in a sound level of 130 decibels (dB) to 140 dB at a distance of at least half a mile, if unobstructed by surrounding buildings. This sound level is consistent with a gunshot blast, standing next to a jet plane engine, and more than 10 times louder than being in front of the speakers at a rock concert.

For the building to have been prepared for intentional demolition, walls and/or column enclosures and fireproofing would have to be removed and replaced without being detected. Preparing a column includes steps such as cutting sections with torches, which produces noxious and odorous fumes. Intentional demolition usually requires applying explosive charges to most, if not all, interior columns, not just one or a limited set of columns in a building.

Is it possible that thermite or thermate contributed to the collapse of WTC 7?
NIST has looked at the application and use of thermite and has determined that its use to sever columns in WTC 7 on 9/11/01 was unlikely.

Thermite is a combination of aluminum powder and a metal oxide that releases a tremendous amount of heat when ignited. It is typically used to weld railroad rails together by melting a small quantity of steel and pouring the melted steel into a form between the two rails.

To apply thermite to a large steel column, approximately 0.13 lb of thermite would be needed to heat and melt each pound of steel. For a steel column that weighs approximately 1,000 lbs. per foot, at least 100 lbs. of thermite would need to be placed around the column, ignited, and remain in contact with the vertical steel surface as the thermite reaction took place. This is for one column . presumably, more than one column would have been prepared with thermite, if this approach were to be used.

It is unlikely that 100 lbs. of thermite, or more, could have been carried into WTC 7 and placed around columns without being detected, either prior to Sept. 11 or during that day.

Given the fires that were observed that day, and the demonstrated structural response to the fires, NIST does not believe that thermite was used to fail any columns in WTC 7.

Analysis of the WTC steel for the elements in thermite/thermate would not necessarily have been conclusive. The metal compounds also would have been present in the construction materials making up the WTC buildings, and sulfur is present in the gypsum wallboard used for interior partitions.

An emergency responder caught in the building between the 6th and 8th floors says he heard two loud booms. Isn't that evidence that there was an explosion?
The sound levels reported by all witnesses do not match the sound level of an explosion that would have been required to cause the collapse of the building. If the two loud booms were due to explosions that were responsible for the collapse of WTC 7, the emergency responder-located somewhere between the 6th and 8th floors in WTC 7-would not have been able to survive the near immediate collapse and provide this witness account.
Questions and Answers about the NIST WTC 7 Investigation






__________________
 
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no test where ever done for explosives or accelerants you are talking out your ass...again



science is not guessing something would probably be too hard to do

Soi I take it you have changed your position and coincide that outside of initiating fires damage played no significant role in the collapse of wtc 7

just the facts:The collapse was not caused by explosives or fuel oil fires.
Fires, which undermined floor beams and a critical structural column, led to the eventual collapse. The fires on Floors 7 through 9 and 11 through 13 were particularly severe.
Thermal expansion of long-span floor systems in the east side of the building was a critical factor. The building’s exterior columns were more closely spaced than the interior ones. Thermal expansion of the floor beams damaged connections between the steel beams and concrete slab of the composite floor system. Some beams buckled; others pushed the girders, causing some to buckle. A few girders lost their connections to columns, triggering floor failures.
WTC 7 is the first modern high-rise to collapse primarily as a result of a fire. Debris from the falling WTC Tower 1 damaged structural columns and ignited fire on at least 10 floors. The main fuels for the fire were office paper and furnishings.
The water supply for the sprinkler system had been cut off on six of the lower floors, which caused these floors to burn with intensity. The upper floors had a backup water supply.
The collapse started on the 13th floor when a girder disconnected from a critical column (79), which supported a long open floor span. Once the floor gave way, the floors below it, down to the fifth floor, also compressed. The buckling of Column 79 (and then Columns 80 and 81) occurred when lateral support for nine stories was lost. As the building started to fall, a kink occurred at the top of the building as the east penthouse failed.
 
Sporadic fires and debris damage did not cause the symmetrical NEAR (since the debunkers always bitch about the initation) free fall collapse of WTC 7.
This evidence supports the NIST contention that the building collapse progressed from the penthouse out as columns were weakened by the fires. The slow sinking of the penthouses, indicating the internal collapse of the building behind the visible north wall, took 8.2 seconds according to a NIST preliminary report. Seismograph trace of the collapse of WTC 7 indicates that parts of the building were hitting the ground for 18 seconds. This means the collapse took at least 18 seconds, of which only the last approximately 15 seconds are visible in videos: 8 seconds for the penthouses and 7 seconds for the north wall to come down. not even close to freefall! lol!



‪9/11 Debunked: World Trade Center - No Free-Fall Speed‬‏ - YouTube
 
Sporadic fires and debris damage did not cause the symmetrical NEAR (since the debunkers always bitch about the initation) free fall collapse of WTC 7.
This evidence supports the NIST contention that the building collapse progressed from the penthouse out as columns were weakened by the fires. The slow sinking of the penthouses, indicating the internal collapse of the building behind the visible north wall, took 8.2 seconds according to a NIST preliminary report. Seismograph trace of the collapse of WTC 7 indicates that parts of the building were hitting the ground for 18 seconds. This means the collapse took at least 18 seconds, of which only the last approximately 15 seconds are visible in videos: 8 seconds for the penthouses and 7 seconds for the north wall to come down. not even close to freefall! lol!



‪9/11 Debunked: World Trade Center - No Free-Fall Speed‬‏ - YouTube

no forensic testing for explosives was ever done ...dumb ass
 
I have no idea what you read but this is what I wrote:they tested for explosives and other accelerants and found that it was highly improbable to set these without being detected and no one else come forward with a competing theory that has any scientific merit or credibility of any kind ,it only make sense to any reasonable person to agree with the people who do safety and standards for a living. :eusa_whistle:


my want to rethink who's ass is talking here:

Did investigators consider the possibility that an explosion caused or contributed to the collapse of WTC 7?
Yes, this possibility was investigated carefully. NIST concluded that blast events inside the building did not occur and found no evidence supporting the existence of a blast event.

In addition, no blast sounds were heard on the audio tracks of video recordings during the collapse of WTC 7 or reported by witnesses. According to calculations by the investigation team, the smallest blast capable of failing the building's critical column would have resulted in a sound level of 130 decibels (dB) to 140 dB at a distance of at least half a mile, if unobstructed by surrounding buildings. This sound level is consistent with a gunshot blast, standing next to a jet plane engine, and more than 10 times louder than being in front of the speakers at a rock concert.

For the building to have been prepared for intentional demolition, walls and/or column enclosures and fireproofing would have to be removed and replaced without being detected. Preparing a column includes steps such as cutting sections with torches, which produces noxious and odorous fumes. Intentional demolition usually requires applying explosive charges to most, if not all, interior columns, not just one or a limited set of columns in a building.

Is it possible that thermite or thermate contributed to the collapse of WTC 7?
NIST has looked at the application and use of thermite and has determined that its use to sever columns in WTC 7 on 9/11/01 was unlikely.

Thermite is a combination of aluminum powder and a metal oxide that releases a tremendous amount of heat when ignited. It is typically used to weld railroad rails together by melting a small quantity of steel and pouring the melted steel into a form between the two rails.

To apply thermite to a large steel column, approximately 0.13 lb of thermite would be needed to heat and melt each pound of steel. For a steel column that weighs approximately 1,000 lbs. per foot, at least 100 lbs. of thermite would need to be placed around the column, ignited, and remain in contact with the vertical steel surface as the thermite reaction took place. This is for one column . presumably, more than one column would have been prepared with thermite, if this approach were to be used.

It is unlikely that 100 lbs. of thermite, or more, could have been carried into WTC 7 and placed around columns without being detected, either prior to Sept. 11 or during that day.

Given the fires that were observed that day, and the demonstrated structural response to the fires, NIST does not believe that thermite was used to fail any columns in WTC 7.

Analysis of the WTC steel for the elements in thermite/thermate would not necessarily have been conclusive. The metal compounds also would have been present in the construction materials making up the WTC buildings, and sulfur is present in the gypsum wallboard used for interior partitions.

An emergency responder caught in the building between the 6th and 8th floors says he heard two loud booms. Isn't that evidence that there was an explosion?
The sound levels reported by all witnesses do not match the sound level of an explosion that would have been required to cause the collapse of the building. If the two loud booms were due to explosions that were responsible for the collapse of WTC 7, the emergency responder-located somewhere between the 6th and 8th floors in WTC 7-would not have been able to survive the near immediate collapse and provide this witness account.
Questions and Answers about the NIST WTC 7 Investigation






__________________

this is a story ...an unproven theory...not supported with evidence...nothing more
 
Sporadic fires and debris damage did not cause the symmetrical NEAR (since the debunkers always bitch about the initation) free fall collapse of WTC 7.
This evidence supports the NIST contention that the building collapse progressed from the penthouse out as columns were weakened by the fires. The slow sinking of the penthouses, indicating the internal collapse of the building behind the visible north wall, took 8.2 seconds according to a NIST preliminary report. Seismograph trace of the collapse of WTC 7 indicates that parts of the building were hitting the ground for 18 seconds. This means the collapse took at least 18 seconds, of which only the last approximately 15 seconds are visible in videos: 8 seconds for the penthouses and 7 seconds for the north wall to come down. not even close to freefall! lol!



‪9/11 Debunked: World Trade Center - No Free-Fall Speed‬‏ - YouTube

no forensic testing for explosives was ever done ...dumb ass
http://wtc.nist.gov/NCSTAR1/PDF/NCSTAR 1A.pdf page 68
 
this is a story ...an unproven theory...not supported with evidence...nothing more


please provide Non twoof movement evidence to corroborate that it's an unproven.

the story (fairytale) you propose has never been tested by anyone.
granted there are lots of untested unproven theories and opinions.
just like religion.
belief is not fact.
belief is not evidence of fact

belief only proves belief.....nothing more!
 
this evidence supports the nist contention that the building collapse progressed from the penthouse out as columns were weakened by the fires. The slow sinking of the penthouses, indicating the internal collapse of the building behind the visible north wall, took 8.2 seconds according to a nist preliminary report. Seismograph trace of the collapse of wtc 7 indicates that parts of the building were hitting the ground for 18 seconds. This means the collapse took at least 18 seconds, of which only the last approximately 15 seconds are visible in videos: 8 seconds for the penthouses and 7 seconds for the north wall to come down. Not even close to freefall! Lol!



‪9/11 debunked: World trade center - no free-fall speed‬‏ - youtube

no forensic testing for explosives was ever done ...dumb ass
http://wtc.nist.gov/ncstar1/pdf/ncstar 1a.pdf page 68

nowhere dose it say they did forensic testing for explosives you nit wit
 
please provide Non twoof movement evidence to corroborate that it's an unproven.

the story (fairytale) you propose has never been tested by anyone.
granted there are lots of untested unproven theories and opinions.
just like religion.
belief is not fact.
belief is not evidence of fact

belief only proves belief.....nothing more!

YES.. THAT IS AL YOU HAVE...A UNPROVEN THEORY
 
nowhere dose it say they did forensic testing for explosives you nit wit
with no testable evidence it's the next best thing.....you know what about the scientific method again? :eusa_whistle:

a better question is why did you cite a pdf file with no reference to forensic testing to support your bullshit claim testing for explosives was done ?
you know what about the scientific method again? :eusa_whistle:[/quote]
 

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