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re: Video simulation of WTC tower collapse removes the smoke and debris
Posted on 9/11/26 at 11:36 am to TigahTeeth
Posted on 9/11/26 at 11:36 am to TigahTeeth
quote:
The whole “melting steel” argument has always been so stupid. Steel is forged through extreme heat. It doesn’t have to melt, just simply weaken and the rest is, as we see, history.
the weakening of steel at higher temps is the reason they spray structural steel with 2-hr fire rated materials. to give time for everyone to get out before the steel is effected by the higher temps.
Posted on 9/11/26 at 11:40 am to Towelie
quote:
Steel Beams can't melt Jet Fuel
Posted on 9/11/26 at 11:41 am to tigeraddict
quote:
Jet fuel burns between 800°F and 1,500°F (426°C to 815°C) in open ai
That's a hell of a range for an open air burn. How in open air can it burn almost twice as hot as the low end of the scale?
Posted on 9/11/26 at 11:43 am to DownshiftAndFloorIt
quote:
WTC 7 totally collapsed from collateral damage
It was pummeled by the collapse of the North Tower. Fires had also been raging in WTC 7 for hours.
Posted on 9/11/26 at 11:43 am to awestruck
quote:Yeah right. Next thing you'll be saying is jet fuel can't melt steel beams.
Correct
And maybe the most factual statement in this thread.
Posted on 9/11/26 at 11:47 am to DownshiftAndFloorIt
quote:
WTC 7 totally collapsed from collateral damage.
and the resulting fires that burned uncontrollably due to damaged underground sprinkler mains.
Posted on 9/11/26 at 11:58 am to Cfrobel
That photo is the last photo taken by photographer journalist Bill Biggart who was killed by the collapse of WTC 1.
That photo is literally seconds before WTC 1 collapsed and he was still close enough to be crushed by it.
It’s amazing that the memory card in his camera survived.
His belongings that were found with his remains four days later.
That photo is literally seconds before WTC 1 collapsed and he was still close enough to be crushed by it.
It’s amazing that the memory card in his camera survived.
quote:
WTC 3 after the collapse of WTC 2:
His belongings that were found with his remains four days later.
Posted on 9/11/26 at 12:08 pm to RobbBobb
quote:
RobbBobb
Cool.
Did any other buildings collapse like those that day? Any other debris destroy buildings that fell into their own footprint that day?
Posted on 9/11/26 at 12:26 pm to DownshiftAndFloorIt
quote:
WTC 7 totally collapsed from collateral damage.
Is that where Trump was saved by firefighters?
Posted on 9/11/26 at 12:28 pm to stout
They took out the blasting caps as well
Posted on 9/11/26 at 12:33 pm to danilo
quote:
Controlled demolition. Confirmed.
No doubt.
Posted on 9/11/26 at 3:21 pm to stout
Ai slop
Posted on 9/11/26 at 3:23 pm to tigeraddict
It wasn't thermite. A fire heating beams isn't enough to bring them down in their own footprint. Especially a tower that never got hit. We were lied to. Accept it.
Posted on 9/11/26 at 3:40 pm to saintsfan1977
quote:
A fire heating beams isn't enough to bring them down in their own footprint. Especially a tower that never got hit
Post your credentials please
Posted on 9/11/26 at 3:52 pm to saintsfan1977
I actually hate you people
Posted on 9/11/26 at 4:12 pm to tigeraddict
I’m thinking oilfield steels, but thought 41xx derates to 85-90% of its ambient YS when at 400 F.
Wonder what factor of safety was used in the WTC?
Also, seem to remember seeing that previous skyscrapers evenly distributed the vertical supports, but that the WTC had them focused around the exterior and the middle (elevator shafts).
I suppose if you run a plane through one side of the building, the loading becomes a bit lopsided…
Wonder what factor of safety was used in the WTC?
Also, seem to remember seeing that previous skyscrapers evenly distributed the vertical supports, but that the WTC had them focused around the exterior and the middle (elevator shafts).
I suppose if you run a plane through one side of the building, the loading becomes a bit lopsided…
Posted on 9/11/26 at 4:25 pm to saintsfan1977
What the frick are you babbling about?
Posted on 9/11/26 at 6:33 pm to BamaCoaster
quote:
Did any other buildings collapse like those that day? Any other debris destroy buildings that fell into their own footprint that day?
Several
Full Collapse:
3 World Trade Center Marriott International Hotel
7 World Trade Center 7 World Trade Center
155 Cedar Street St. Nicholas Greek Orthodox Church
Partial Collapse:
4 World Trade Center South East Plaza Building
5 World Trade Center North East Plaza Building
6 World Trade Center Custom House Building
30 West Broadway Fiterman Hall
Posted on 9/11/26 at 8:55 pm to TigahTeeth
quote:
The whole “melting steel” argument has always been so stupid. Steel is forged through extreme heat. It doesn’t have to melt, just simply weaken and the rest is, as we see, history.
This and I remember a very good description of how much “stored energy” there is in a building like that. All the stored energy that it took to build them was released with the damage and fire which resulted in collapse.
Posted on 9/11/26 at 9:45 pm to stout
Did the collapses register on a Richter Scale? I’ve never heard it mentioned one way or the other.
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