Thread: Do you think 9/11 was staged?

Are you guys saying that the buildings are going down at "free-fall speeds" on crack? You can clearly see debris around the building dropping faster than the structure itself.

Originally Posted by Spartiate

Are you guys saying that the buildings are going down at "free-fall speeds" on crack? You can clearly see debris around the building dropping faster than the structure itself.

To me it honestly looks like something on top suddenly collapsed or a bomb exploded on top, then a split second after a controlled demolition occurs. I feel like I can remember it very vividly without watching a video but maybe I should check again.

Originally Posted by Spartiate

Are you guys saying that the buildings are going down at "free-fall speeds" on crack? You can clearly see debris around the building dropping faster than the structure itself.

Originally Posted by Invader

building fell in 10 seconds (9-ish seconds would have been free fall)

Glad I had that base covered yo.

Originally Posted by Invader

Glad I had that base covered yo.

I'll give you a chance to show how you came up with those numbers before I prove you wrong.

Originally Posted by Spartiate

I'll give you a chance to show how you came up with those numbers before I prove you wrong.

I used the kinematic equation: X = X₀ + v₀t + (1/2)at²
If we call the height of the tower the origin, X₀=0 and since initial velocity of course is 0 that leaves us with
X = (1/2)at².
Rearranged this is: t = sqrt((1/2)X/a), where displacement X is 415 meters (distance between the roof of the shorter tower and the ground) and a is the gravitational constant 9.8 m/s².
Plugging these values in gives us a free-fall time of 9.2 seconds.

For the observed fall-time of the tower, I used a stop-watch.

I'd like to see the physics proven wrong, so go ahead.

On the collapse of the towers

Both Steven Jones, and an engineer from MIT cover the in-depth scientific impossibilities of fire bringing the gigantic North and South Towers down. But simpler logic works as well. If fire from kerosene (jet fuel) and office debris were sufficient equipment to bring a steel-frame building neatly down into its footprint, then why the need for the intensely sophisticated demolition industry? And all its fancy crews and engineering techniques? Why not, when a building needs tearing down, just spread some jet fuel on a few floors, light a match, and stand back for an hour or two? The notion is, of course, absurd. So why is it not also absurd in the case of the Twin Towers - which were designed specifically to support the impact of an airplane?

9/11 - Hard Facts, Hard Truth | The Twin Towers

Originally Posted by Invader

I used the kinematic equation: X = X₀ + v₀t + (1/2)at²
If we call the height of the tower the origin, X₀=0 and since initial velocity of course is 0 that leaves us with
X = (1/2)at².
Rearranged this is: t = sqrt((1/2)X/a), where displacement X is 415 meters (distance between the roof of the shorter tower and the ground) and a is the gravitational constant 9.8 m/s².
Plugging these values in gives us a free-fall time of 9.2 seconds.

For the observed fall-time of the tower, I used a stop-watch.

I'd like to see the physics proven wrong, so go ahead.

I don't disagree with your physics, I disagree with your stopwatch.

World Trade Center Collapse NBC - YouTube

You can see the antenna start dropping at 0:53. At 1:03 you can clearly see the majority of the building still above the surrounding skyscrapers with large chunks of surviving concrete not falling out of view until 1:12. A large section of the building's metal core stays up for another 10 seconds after that before completely collapsing. By comparison the falling debris around the tower is falling much faster.

But simpler logic works as well. If fire from kerosene (jet fuel) and office debris were sufficient equipment to bring a steel-frame building neatly down into its footprint, then why the need for the intensely sophisticated demolition industry? And all its fancy crews and engineering techniques? Why not, when a building needs tearing down, just spread some jet fuel on a few floors, light a match, and stand back for an hour or two?

Lol seriously?