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Objects executing motion around a point possess a quantity called angular momentum. This is an important physical quantity because all experimental evidence indicates that angular momentum is rigorously conserved in our Universe: it can be transferred, but it cannot be created or destroyed.
A body at rest remains at rest, and a body in motion continues to move in a straight line with a constant speed unless and until an external unbalanced force acts upon it...An object that is in motion will not change velocity (accelerate) until a net force acts upon it.
Originally posted by ANOK
I want to know how you explain the top rotating, breaking up and starting to topple before the collapse began? Then I'd like to know how it had the energy to crush the rest of the undamaged building under it?
It is obvious from just these pics that the top could not have crushed the building in a pancake collapse. The top section itself is crumbling and breaking up as the collapse initiates. How did this have enough mass to crush undamaged floors and steel columns that were stronger as they went down?
None of the chiefs present believed a total collapse of either tower was possible. Later, after the Mayor had left, one senior chief present did articulate his concern that upper floors could begin to collapse in a few hours, and so he said that firefighters thus should not ascend above floors in the sixties.
If you dig around a bit you'll find talk of a 1975 fire somewhere around the 11 floor that burned for several hours on almost the entire floor, yet after the cleanup they didn't even have to replace the floor trusses.
Originally posted by Swampfox46_1999
As for the "rotation" and the angular momentum....what would happen if the inner structure of the top of the building (above the impact zone) fell into the remains of the inner structure below the impact zone.........hmmm......
'what caused the top to not follow the laws of physics and continue in it's rotation and tilt?
Originally posted by Swampfox46_1999
As for the "rotation" and the angular momentum....what would happen if the inner structure of the top of the building (above the impact zone) fell into the remains of the inner structure below the impact zone.........hmmm......
Originally posted by Swampfox46_1999
I wonder what training everybody on this board, not what they claim, but what they really have.
'what caused the top to not follow the laws of physics and continue in it's rotation and tilt?
You apply black and white to a grey situation. The "rotation" was nothing of the sort, although it makes for formidable sounding arguments. The tilt, was stopped when that portion of the building fell into the jagged beams cut by the impact (which would also cause the top of the building to start to come apart)
The crushing of the building....actually I think the outside of the towers, below the impact, looked more like a banana being peeled. Of course, in the case of the towers the "peel" (metal facade) was being separated from the floor trusses, leaving them vulnerable to the mass of the building above the impact zone.
www.peoplefor911justice.com...
Originally posted by ViewFromTheStars
P.S. The laws of physics don't change.. the stories pertaining to them do.
Originally posted by Swampfox46_1999
And yet, you forget important facts about that fire and the buildings structure. The 11th floor was treated with asbestos. The 9/11 impact zones were treated with a much less durable substance that was missing in many areas. A look in the history books shows that when they stopped using asbestos halfway up the towers, a few people questioned the ability of the towers to withstand an inferno on the upper floors.
Seldom mentioned in the literature about the September 11th attack is the fact that the North Tower experienced a serious fire in 1975, when it was only sparsely occupied. On February 13, 1975, a fire, set by a custodian turned arsonist, started on the 11th floor and spread to limited portions of six other floors, burning for three hours. Several fire suppression systems that were later installed in the towers were not present at the time, including sprinklers, elevator shaft dampers, and electrical system fireproofing.
Originally posted by graphicsman1977
As outlandish as these claims may sound, they are increasingly accepted abroad and among extremists here in the United States.