BASED OF NEWTONS 3rd LAW OF EQUAL AND OPPOSITE REACTION:
With Gravity
A small Box (same object) cannot Crush a BIGGER box (same object) in ACCELERATION, let alone at all.
30 floors of WTC (the SAME object) cannot CRUSH 70 floors of WTC (the SAME object). LET ALONE AT ACCELERATION.
it's this basic, and you cannot even understand it........................
"With a 700 Pa floor design allowable, each floor should have been able to support approximately 1,300 t beyond its own weight. The total weight of each tower was about 500,000 t. "
"The floor below (with its 1,300 t design capacity) could not support the roughly 45,000 t of ten floors (or more) above crashing down on these angle clips. "
"a 500,000 t structure has too much inertia to fall in any direction other than nearly straight down."
"To a structural engineer, a skyscraper is modeled as a large cantilever vertical column. Each tower was 64 m square, standing 411 m above street level and 21 m below grade. This produces a height-to-width ratio of 6.8. The total weight of the structure was roughly 500,000 t, but wind load, rather than the gravity load, dominated the design. The building is a huge sail that must resist a 225 km/h hurricane. It was designed to resist a wind load of 2 kPa—a total of lateral load of 5,000 t."
"lightweight “perimeter tube” design consisting of 244 exterior columns of 36 cm square steel box section on 100 cm centers"
"In the upper floors there is as much as 40,000 square feet of office space per floor. The floor construction is of prefabricated trussed steel, only 33 inches in depth, that spans the full 60 feet to the core, and also acts as a diaphragm to stiffen the outside wall against lateral buckling forces from wind-load pressures."