QUOTE(Larmo63 @ Sep 12 2018, 06:16 PM)
That was an unforgettable day, but I can't help but think that we, as a nation, need a REAL investigation about what REALLY happened that day.
Controlled demolition:
https://www.youtube.com/watch?v=Mamvq7LWqRUOh dear, this is what the so many people miss about the North and South Towers and their means of construction - prior to the initial design and construction of the WTC most skyscrapers were built with the traditional steel frame construction. People assume that the WTC towers were built that way too (which is why they keep bringing up the 1945 aircraft crash into the Empire State Building). “side note” B-25 fully loaded weighted 34,000 lbs and a 767 weights 395,000 lbs. But the WTC was different - it was the first to adapt to a core and skin type of construction to balance the weight load evenly. In the older construction, all of the weight was placed upon the steel frame. But with a core and skin system, they worked together to distribute the weight.
When the aircraft penetrated the WTC towers, the skin was separated from the core on three sides, meaning that the weight was distributed too much on the core, which then had to hold a weight load that it was never designed to hold. When the fires that consumed the towers finally pierced the last side of skin, it was fully detached from the core, meaning that all of the weight was on the core, which caused a lack of structural integrity and caused one floor to pancake onto the next floor and so forth until all 110 floors were consumed.
If the building was constructed in a traditional steel frame manner, there is a high likelihood that the FDNY would have been able to eventually reach the upper floors and extinguish the fire enough to provide an escape route for the people trapped on the upper floors, and either it would not collapse or have a partial collapse - not a full scale collapse as what happened. There was a full collapse of a high rise building some years ago in South American, but that building was fully involved in fire.
Don’t understand the conspiracy theorist when there is lots of videos watching to 767s crashing into the Twin Towers.