Originally posted by sorgfelt
Sorry, but the type of construction used for those buildings has resulted in other such pancaking episodes, bringing down a whole building without
demolition. It is a common, cheap way to construct a skyscraper that I would not ever feel safe in. The floors were heavy concrete pancakes supported
all around the edges by fasteners to the steel columns. If just one floor was loosened and fell on top of the lower floor, it would put more stress
on the fasteners of the lower floor than they were designed to hold, and that lower floor would come down, repeating the process, picking up speed,
until the whole structure comes straight down, the steel columns left on the outside, and gradually coming apart and falling down (most likely pulled
towards the center of the building), because there was nothing left to keep them upright.
Sorry but the twin towers do not show signs of pancake collapse, you have to pay attention to the details.
Verinage demolition has to have at least 50% of the mass to do the crushing, and they often weaken supports to help the collapse. It would not work
if you tried dropping 15 floors on 95 floors.
The towers were not pancake collapses, even NIST rejected that method. IF it was a pancake collapse it could not have been so complete, as there is
not enough energy available for a smaller mass to completely collapse and crush a larger mass. That is why pancake collapses always have visible
intact floors stacked up like pancakes, resistance is a stronger force acting on the towers than gravity. The collapse speed should not have
increased but slowed. But it did increase, which means there we zero resistance as if the top was falling more or less through air. Ke should have
been lost, but it wasn't, and that goes against all known physics. The only explanation is there must have been another energy acting on the towers,
that was not investigated for, and is being covered up by the government and their OS supporters.
In this gif you can see the top is collapsing by itself...
The top is top collapsing the bottom, it is collapsing itself as it hits the resistance of the lower block of floors. A few seconds later the bottom
drops. If you look at the tilt of the top of WTC 2 you can see clearly that the bottom is collapsing independent of the top, other wise the top would
have continued its angular momentum and fell off the side. It could only go straight down if the bottom section collapsed independent of the top.
The top could not both be at an angle on a pivot, and cause a straight down collapse of something it was not sitting true on. Try hitting a nail at
an angle and see if you can get it to go straight down.
That is why another energy, that was not investigated, must have been involved.
edit on 7/19/2011 by ANOK because: typo