YES. THEY KNOW ABOUT AND READ THESE DROPS.
It also got a fair bit of strength from the perimeter columns. Must skyscrapers are a 3D grid of steel beams. But the TT had inner (the core) and outer shells of beams so as to maximize the open area on each floor. That's fine as long as neither is severely damaged. But once the planes cut through wide swaths of the structure, it was like an eggshell with a crack in it. There was no where to redistribute the load.
It had seven floors worth of cellar-hole to fall into.
I can't answer the Pentagon parts.
But the 4th plane was doing a dive from 35,000ft. It would have been going nearly supersonic when it hit the ground. Every ounce would have been like a collection of bullets flying in formation. So it's not inconceivable that it could have fully embedded in the soft soil. It not like one of those crashes that happened right after takeoff.
When has a building as large as the WTC ever been demolished? (besides 9/11)
>Can jet fuel heat up to 1100 degrees?
>Does structural steel really lose half its strength at that temperature?
https://www.engineeringtoolbox.com/metal-temperature-strength-d_1353.html
And don't forget that there was more than just jet fuel burning. What do you think burns during normal building fires?
I agree that there is something fishy about the WTC collapse. One side should have failed long before the other and the building should have crumpled sideways.
But people are getting distracted with questioning parts of the story that are not all problematic. It dilutes the message.
Steel is pretty easy to merely soften.
After the fire protection was blown off it wasn't hard to set steel to the700-800 degF need to dramatically weaken it..
You're focusing on the wrong thing. What you all should be asking is "Why did it all fail simultaneously so that it could fall straight down?"
The 'Jet-Fuel Vs. Steel Beams' thing that everyone focuses on (is told to focus on) is not what's wrong with the story.
Oh..I see.. you are targeting the '=,' . Nevermind.
Nice try.
How hard does a quarter of a skyscraper hit if dropped 13 feet?
But they didn't fail simultaneously. They failed one at a time.