Quote from: Spendulus on Today at 01:58:28 PM

I don't recall "the official story claiming" for WTC7, the floors impacted each other progressively.

That phenomena is an accurate description of what everyone's seen on video regarding the twin towers. For WTC 7, it collapsed inwards.

Please stop sayng nonsensical things such as "Netwon's 3rd law of motion would need to be violated as any resistance would decrease the rate of speed of the fall due to the resistance encountered in the way down."

Without accurate and precise measurements of the "rate of speed of the fall", you cannot make any claim as to the matter.

The way this actually works would be if we say the time of fall is known within certain upper and lower bounds, then the effective gravitational force would be known within certain bounds, and since g is known, then the range of a possible second variable that might decrease the effective g is known. Not that it would be proportional to g at all speeds, but you should get the idea.

...

You've pulled that quote from a general description of the events, not even related to timing.
How do you figure "requires zero resistance"?

Here is the paragraph in full and in context.

...First responders assisted thousands of civilians in evacuating the towers, even as incident com- manders from responding agencies lacked knowledge of what other agencies and, in some cases, their own responders were doing.

From 9:59 until 10:28 A.M.
At 9:58:59, the South Tower collapsed in ten seconds, killing all civilians and emergency personnel inside, as well a number of individuals—both first responders and civilians—in the concourse, in the Marriott, and on neighboring streets.The building collapsed into itself, causing a ferocious windstorm and creating a massive debris cloud.The Marriott hotel suffered significant damage as a result of the collapse of the South Tower.

Regardless, why would you use the highest elevation to calculate the speed of fall? the collapse started from about the 80th floor. Seems you've improperly described the events in order to make a point.

From page 294.

At 9:03:11, the hijacked United Airlines Flight 175 hit 2 WTC (the South Tower) from the south, crashing through the 77th to 85th floors.

Assuming 12 feet per floor, 12*80 = 960 feet until the section above the crash zone hit the debris pile. And how long is your prized "free fall speed" for 960 feet?

Looks about 7.3 seconds. Looks like your theory is disproved, because initial presumptions were incorrect.

It doesn't matter which direction it collapses. Collapsing inwards doesn't magically remove the resistance of the internal infrastructure. Fire doesn't do that. Impact damage doesn't do that. I don't need precise measurements of every detail and qualifier you want to tack on for you to obfuscate that your theory requires the laws of physics to be violated. Gravitational acceleration, or "free fall" speed is approximately approximately 32 ft/s2. Anything close to, at, or above that downward velocity REQUIRES zero resistance form internal infrastructure to be achievable under Newtons third law of motion. It is required, because if there was resistance, some of the energy held in the velocity of the downward acceleration would be lost in the destruction of the internal infrastructure as it fell, resulting in the slowing of its fall. You keep trying to argue against the laws of physics. Like I said before, all the other theories are useless. When it comes down to it you have to argue against the laws of physics itself to claim your "pancake collapse" theory is true.