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The impact
was one of the largest contributing factors to the collapse.
It's the part conspiracy theorists like to forget when
comparing these collapses with others. The impacts caused
real trauma to all three buildings. (Two airliners into the
towers and debris from the north tower for building 7. The
building 7 impact is another one conspiracy theorists like to
forget)
The impacts
obviously took out many perimeter columns in the towers.
The towers
had a number of floors destroyed from about the perimeter
columns to the core. The impact sliced the aluminum aircraft
into smaller pieces but the speed of the craft also sliced
through the steel like butter.
The impacts
also spread jet fuel into the buildings. Not all the fuel
was used in the fire ball. In fact, eye witnesses say jet
fuel was creating curtains of fire as it poured down from
the impact zone. But the jet fuel only started the fires. It
was never the NIST's contention that the jet fuel brought
down the buildings as conspiracy theorists suggest.
Conspiracy theorists use this as a straw man. They say the
jet fuel couldn't have bowed the columns and sagged trusses. Just
as lighter fluid doesn't cook your meat in a barbeque, the
jet fuel didn't sag the trusses or bow the columns.
You also can't leave this important factor out either.
Conspiracy theorists say the columns couldn't have bowed and
the trusses couldn't have sagged because the jet fuel wasn't
hot enough and was used up within about 15 minutes of
impact. That's like saying your meat didn't cook in your
barbeque because the lighter fluid burns too quickly. All
the jet fuel did was act as lighter fluid and intensify the
fire for about 15 minutes.
The impact
brought a 500 mile an hour wind to the impact floors as
a wall of debris traveled from one end of the buildings to the other.
The jet fuel blast added to the event with more than just a
pyrotechnic show. This high wind (debris and blast) blew the debris into the furthest corners of
the building. It obviously stripped the ceiling tile system
off in an instant. Photographic evidence shows no sign of
ceiling tiles on the impact floors. In that same instant
the all important
"blown on" fire proofing was removed from the trusses and some
columns. This could be seen from photographic evidence in
the NIST report. The NIST also replicated the fireproofing
and conditions during impact and found the fireproofing
easily blew off. As with all the NIST tests anyone can
replicate them if they doubt the conclusion.
Click on the photo to see a larger
image. Conspiracy
theorists will point to Mrs. Cintron waving by
column 134 as evidence the fires weren't hot. But
it's absurd to suggest she was there during the
impact. It's obvious SOMETHING protected her and she
made it to where she is to wave for help. Even if
you think a missile hit the towers, something must
have protected her. Apparently, all critical
thinking skills go out the window when conspiracy
theorists see her. As if the fires behind and above
her must be cool because her location appears to be.
Another of many logical fallacies suggested by
deniers.
[Wind as in
air that moves... Believe it or not, conspiracy theorists have
attacked the word "Wind" as if I was saying an absurd
weather front moved into the towers. It seems that if they don't
take the words out of context they can't attack it. Another
absurd point was made about the airliner having air
pressure on its leading edge as if the plane was intact as
it ripped through the building.]
The load was
redistributed to the remaining perimeter columns and hat
truss system over the core. The design was truly robust and
prevented the building from crashing to the ground early.
The building was left wounded
and on fire but not dead. Unknown to anyone who was used to
the typical office building fire,
the building was mortally wounded. Just like a wounded
animal left bleeding, the towers' fate was sealed.
Go to: Fires and Fire Proofing
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