If you are going to claim that the north Tower or Building 7 did not fall as a direct result of the plane hitting both the North and South Towers you are going to have to come up with some rational explanation about what did cause the North Tower and Building 7 to collapse. All you have done is speciously claim they couldn’t have collapsed because of the plane. You have offered no other explanation. You might as well say aliens did it. You have no argument unless you can offer another explanation. You have yet to do that. Until you can, as far as I’m concerned, there is no point to your argument.
And you do not have to explain how the conservation of momentum could go out the window to allow most of the mass of the north tower to come down in 11 seconds according to some sources.
The TV mast and roof from the North Tower struck the ground about 11 seconds after the descent began, at 10:28 AM EDT, 102 minutes after being hit. The central core of the lower 60 floors completely collapsed within 10 to 15 seconds after being bypassed by the falling upper floors.
It is not my fault that you can BELIEVE the physics of the top 13% of a skyscraper falling straight down and destroying an intact 85% below without even demanding accurate data on the distributions of steel and concrete.
That is what I find hilarious about this site. People portraying themselves as SCIENTIFIC but do not demand simple information.
Believing, suspecting and KNOWING are three different things. You can’t really KNOW until you can PROVE. If the north tower could collapse it should not be very difficult to make a model that could do it and supply complete data on the model. When problems were discovered with the Tacoma Narrows Bridge in 1940 they had a 1:200th scale model built in a wind tunnel in 4 months. But what engineering school has even announced it would try doing a model of the north tower in 12 years? With 50 skyscrapers over 1000 feet tall constructed in the last 12 years the physics of skyscrapers cannot be that difficult. Before 9/11 I would have regarded the physics of skyscrapers as beneath the notice of physicists.
That is why I haven’t watched any of Tyson’s COSMOS. He lived 4 blocks from Ground Zero. He had to abandon his home for days because of the dust. It would annoy me too much to listen to him talking about Black Holes thousands of light years away that have no effect on his life when he won’t address the physics that made him leave his house.
Real science is about KNOWING not suspecting or Believing.
I am supposed to believe that our engineering schools can’t do better models than this:
My model starts at 3:43. But I can’t build one with the same mass distribution as the north tower if I don’t know what it is. And I have not seen any engineering school bring up the issue in 12 years. I have emailed people at Purdue because of their “scientific simulation” that contradicts the NIST by not moving horizontally.
That is another funny thing about this site. People here believe in complicated climate simulations for projecting future climates but do not expect good computer simulations of skyscraper collapses. I wonder if the problem is finding out that planes and fire could not do it then it would be too upsetting. I truly do not give a damn who did it.
I consider the screwed up science to be much more of a problem in the long run. It is hysterical for people in this country to be talking about STEM education. The nation that put men on the Moon can’t do a model of a skyscraper collapse.