(03-21-2021, 08:48 AM)kruddler date Wrote:So 1 order of magnitude....1.5m high floors, really?
Get rid of your 5m, that is saying that 1.5m of floors were essentially not there.
10% (reduced to 5%) may be the height, but the base is more dense than the top, as the weight distribution may make it even less than that. 1/2 of gravity is still a hell of a lot of accelaration to happen all at once. Change those figures and there goes your order of magnitude before we even try.
Still....this assumes a uniform, whole collapse at once which is simply not practical.
You're so far from reality, one minute you want to claim WTC7 collapses under free fall proves a deliberate implosion, even though that facts show it fell for a total of 1.4s slower than a free fall speed. Then you want the WTC towers to fall at 1/10th of the real world rate for 1/6th the distance collapse height. I don't know a building that has 1.5m high floors clear span floors, they just don't exist. A heated and buckled structural member functionally presents no resistance at all.
The weight of collapse goes up as the floors pancake, the total collapsing energy and mass doesn't decrease or stay static, it accumulates as it goes until it hits solid earth or compacted rubble.
btw., You seem to not get the math, lets use 5% weight, 1/10th gravity and 1.5m fall even though it's absurd figures to assume.
E = mgh
E = 22,500,000 x .98 x 1.5
E = 33,075,000 Newtons
F = 33,075,000 / 9.8
F = 3,375,000kg
An impact of 3 Million kilograms is still way beyond anything a building is design to withstand. 3 Million kilograms is just two WTC floors collapsing without even the mass of the walls.
"Ruck, ruck, ruck, ruck ....... Ruck, ruck, ruck, ruck"