One persistent myth is the belief that jet fuel can melt steel beams. However, this claim is not supported by scientific evidence. Steel melts at a temperature of 2,750 degrees Fahrenheit, while jet fuel burn at temperatures ranging from 800 to 1,500 degrees Fahrenheit.
Steel signify weakens at approx 1000 deg F… but I believe it was a controlled demo…there were people working in the non public spaces for weeks/months prior to this event.
You are consistently wrong on this point. The adiabatic flame temperature of kerosene (jet fuel) is 3801 F. You can look it up. https://en.wikipedia.org/wiki/Adiabatic_flame_temperature How do you think we melt iron in the first place? Foundries use coke (a form of purified coal) that burns at 3,957 F, not far from jet fuel.
But the towers fell straight into their footprints. I don't know how a localized fire in a building can cause all 4 corners to collapse simultaneously. And what about those slanted cut lines on the steel beams that were exposed in the aftermath? I heard that is the way demolition explosives are made to destroy them.
If you can find my response to daedalus001, I explain the collapse process in detail.
A column can fail in either of two ways: in buckling or in shear. In buckling, it would need enough room and plasticity to bend. If there is no freedom to bend or it is too rigid to bend, then it will fail in shear. It turns out that when a column fails in compressive shear, the break is always at 45 degrees. It turns out that is the angle at which the combined force and the bearing area result in the highest shear value. I have no idea whether demolition explosives are configured this way. I suspect it wouldn't matter. If the column is weakened, that is how it would shear anyway.
Buildings that collapse don't atomize the concrete and don't reduce down to a fraction of their original height. If you compare the truck loads of debris hauled away with what they used to build the towers with, there's no explanation for the vast difference in what was removed during the collapse. They collapse to about 1/3rd of their original height, not to the 6 floor height of what was remaining. Along with the reports of explosions in the basement while the towers were still standing. Who do you work for? CIA or Mossad?
One persistent myth is the belief that jet fuel can melt steel beams. However, this claim is not supported by scientific evidence. Steel melts at a temperature of 2,750 degrees Fahrenheit, while jet fuel burn at temperatures ranging from 800 to 1,500 degrees Fahrenheit.
Steel signify weakens at approx 1000 deg F… but I believe it was a controlled demo…there were people working in the non public spaces for weeks/months prior to this event.
You are consistently wrong on this point. The adiabatic flame temperature of kerosene (jet fuel) is 3801 F. You can look it up. https://en.wikipedia.org/wiki/Adiabatic_flame_temperature How do you think we melt iron in the first place? Foundries use coke (a form of purified coal) that burns at 3,957 F, not far from jet fuel.
And it is not necessary to melt steel, when structural steel loses 70% of its strength at a temperature of 1,112 F (sloping downward at higher temperatures). https://www.engineeringtoolbox.com/metal-temperature-strength-d_1353.html
The only persistent "myth" in this case is what you are believing in. Especially under the further myth that it is scientific.
But the towers fell straight into their footprints. I don't know how a localized fire in a building can cause all 4 corners to collapse simultaneously. And what about those slanted cut lines on the steel beams that were exposed in the aftermath? I heard that is the way demolition explosives are made to destroy them.
Also the thermite that was found.
If you can find my response to daedalus001, I explain the collapse process in detail.
A column can fail in either of two ways: in buckling or in shear. In buckling, it would need enough room and plasticity to bend. If there is no freedom to bend or it is too rigid to bend, then it will fail in shear. It turns out that when a column fails in compressive shear, the break is always at 45 degrees. It turns out that is the angle at which the combined force and the bearing area result in the highest shear value. I have no idea whether demolition explosives are configured this way. I suspect it wouldn't matter. If the column is weakened, that is how it would shear anyway.
Buildings that collapse don't atomize the concrete and don't reduce down to a fraction of their original height. If you compare the truck loads of debris hauled away with what they used to build the towers with, there's no explanation for the vast difference in what was removed during the collapse. They collapse to about 1/3rd of their original height, not to the 6 floor height of what was remaining. Along with the reports of explosions in the basement while the towers were still standing. Who do you work for? CIA or Mossad?