I don't doubt shenanigans, but the physics of the collapse itself makes sense, as it isn't just heat for that type of steel but pressure combined with heat. There still were like 30 floors above where the impact was, that is a lot of weight for heated steel to hold, even on the bottom end of a house fire at 1,000 degrees.
SImple physics disproves this. The building is designed at all times and all places to hold the weight above. A little jet fuel at the 89th floor, hypothetically weakening certain parts of the steel structure and leading to partial collapse, would pancake no more than 4 to 5 floors below the 89th floor.
Then the engineered support, which always and in all places, is designed to hold floors 85-101, would stop the collapse. The jet fuel which is about as threatening as Sterno is long burnt off.
You have to look at the fact that no steel building has EVER burned down, and the amount of jet fuel is dinky compared to the mass of the buildings. There are some excellent graphics demonstrating this.
Have you ever used lighter fluid? Played with fire at all? The jet fuel wasn't the only thing burning. Heat weakens steel a lot.
There is also a big difference between a static load and a dynamic load; the supports weren't designed to hold against the momentum of collapsing floors above them.
"Water can't snap a surfboard! Surfers are liars, I put a Channel Islands 5'11" at the bottom of the deep end of a pool and nothing happened, yet these surfers are claiming water broke their board in half!"
Maybe you don't actually surf, but basically that is the difference between a static load and a dynamic load, being underwater verses being hit by a wave.
I don't doubt shenanigans, but the physics of the collapse itself makes sense, as it isn't just heat for that type of steel but pressure combined with heat. There still were like 30 floors above where the impact was, that is a lot of weight for heated steel to hold, even on the bottom end of a house fire at 1,000 degrees.
SImple physics disproves this. The building is designed at all times and all places to hold the weight above. A little jet fuel at the 89th floor, hypothetically weakening certain parts of the steel structure and leading to partial collapse, would pancake no more than 4 to 5 floors below the 89th floor.
Then the engineered support, which always and in all places, is designed to hold floors 85-101, would stop the collapse. The jet fuel which is about as threatening as Sterno is long burnt off.
You have to look at the fact that no steel building has EVER burned down, and the amount of jet fuel is dinky compared to the mass of the buildings. There are some excellent graphics demonstrating this.
Have you ever used lighter fluid? Played with fire at all? The jet fuel wasn't the only thing burning. Heat weakens steel a lot.
There is also a big difference between a static load and a dynamic load; the supports weren't designed to hold against the momentum of collapsing floors above them.
Popular Mechanics (controlled disinformation) enters the chat.
"Water can't snap a surfboard! Surfers are liars, I put a Channel Islands 5'11" at the bottom of the deep end of a pool and nothing happened, yet these surfers are claiming water broke their board in half!"
Maybe you don't actually surf, but basically that is the difference between a static load and a dynamic load, being underwater verses being hit by a wave.