Skyscrapers on fire, not collapsing

The flames in the photo linked by Mr. Miskatonic can hardly be described as “dying”, Mozart.

The FCC banned having cell phones on in flight because of possible disruption to the cell systems’ towers because of channel reuse and the FAA has banned in flight use (but gives the airline the power to make an exception to this rule if the operator deems that device safe) because of possible issues with aircraft systems or computers that could cause aircraft failure and passenger deaths.

But you didn’t did you? And you were probably considering that it was only 4 floors and not certain death. Most people pass out from smoke exposure before they get to a suicidal stage. Not so with fire - there is no passing out there.

Did you look at the photo I posted?!

Steel is actually very bad in fires. That is why they fireproof it. If a human can’t get away from the fires and chooses to jump then there is going to be trouble with an unprotected steel structure. Concrete is much, much better in fires, but there was no structural concrete elements in any of the three tower.

That is one UNSUBSTANTIATED CLAIM but the NCSTAR1 report says that the core supported 53% of the weight and the perimeter 47%.

How was the core destroyed? We are not told the amount of steel in the core and in the perimeter on every level. The core was held together by horizontal beams. We are not supplied with information about those beams either. So how could that much mass come down in less than 18 seconds?

Regardless of what started the collapse how could the top falling portion force that much mass down that quickly? Oh yeah, we aren’t told the distribution of mass.

People that BELIEVE don’t need data.

It’s the 9/11 Religion!

psik

So you are saying what was burning eliminates the need to know the quantity of steel to get an idea if it could weaken enough to make the buildings completely collapse in less than TWO HOURS?

psik

It’s not an unsubstantiated claim, that is what engineers determined happened and not some moron with paper, washers and a camera.

There is no WE in this, it’s you. The core is a series of vertical pillars just like the outer structure. The joists between them is what gives the building stability. It is a different engineering concept than the Empire State Building. We don’t need to know the amount of steel in the core to understand that the trusses are the weak point in a fire. We don’t need to know the amount of steel to know the upper floors represented a substantial amount of weight and when dropped 12 ft it is a tremendous amount of kinetic energy to impart on the next floor which is already structurally weakened. The videos clearly show this process.

There’s a religion all right and it takes a tremendous amount of faith to believe that the buildings were sabotaged at the exact location of each airplane impact.

This should be your sig–as long as it is self-referential. :smiley:

Wait, you think more massive objects fall more slowly?

We might have just diagnosed your problem.

Here we go with the “quantity of steel” shit again.

Technically, they did; it was the fires–which had not been taken into consideration–that brought them down.

The impact was taken into consideration (at least for a DC8 sized plane) and the fire was taken into consideration (steel structure insulated) but the 2 weren’t connected. Loss of insulation was key to what happened. The Empire State building was hit by a WWII bomber filled with gasoline. It’s steel structure was covered in cement so no loss of insulation occurred.

Combined with the severing of the fire suppressant system.

I was referring to the designer’s statement that the fuel load after impact wasn’t taken into consideration.

Engineer, sorry.

I wasn’t saying anything about the quantity of steel, but if I were going to say something along those lines, I’d express my doubts that even if a figure was presented to you, it would make the slightest difference.

So you change the subject from physics to psychoanalysis to accomplish what?

The nation that put men on the Moon can’t tell the entire world the tons of steel and tons of concrete that were on every level of the towers. But everyone is supposed to believe that airliners could TOTALLY destroy structures TWO THOUSAND TIMES THEIR MASS in less than TWO HOURS even though skyscrapers cannot stand and withstand the wind without getting those design characteristics correct.

But Richard Gage and his buddies won’t bring up the subject either. How much computing power should they have compared to what was available in the early 60s when the WTC was designed? It didn’t take NINE YEARS to design or construct the towers. His dog and pony show is just silly propaganda instead of trying to get people to actually understand anything.

psik

Oh sorry! I forgot that was irrelevant to getting skyscrapers to hold themselves up. :smiley:

psik

Trying to get warned for trolling again?

No one says the impact was the reason the towers collapsed, because it wasn’t. The towers did withstand the impact of the airplanes. If there had not been subsequent fires, that would have been the extent of the damage.

The “skyscrapers are not Jenga blocks” analogy comes into relevance again here.

He did not mention psychoanalysis. Do you have some reason to believe that your psychological state was being questioned?
His point was that you have had all this explained on numerous occasions and you always hand-wave away every bit of evidence that is presented. That is a legitimate observation.

Why do you keep repeating this nonsense?

We know how much steel and concrete was used, even if you cannot be bothered to simply look it up.

How can you make a claim that the buildings were two thousand times the mass of the airplanes if you really don’t know what went into the buildings? Either you know and you are pretending to not know or you are making up your claim regarding the masses involved.

Your claim that the disparate masses between the planes and the buildings has anything to do with anything, given that you need to ignore the fire to make that claim, has all the signs of trolling. It is rather like claiming that a 1500 lb. torpedo is incapable of destroying a 30,000 ton ship.