Weight of 20 floors hitting the floor below.
Weight of 21 floors hitting the floor below that.
Etc.
Heh. As always.
But seriously, consider the formula for kinetic energy.
Ke = 1/2 * mass * velocity squared
When the floors aren't moving, velocity = 0, so there's 0 kinetic energy.
When the floors are moving, even at .1 meters/sec, there's significant Ke because of the mass of the 20 (or whatever floors).
Clearly at some point, the floors below did little to slow the speed of the rest of the building falling from above. Gravity.
That's great in theory. But are you familiar with,
"For every action there is an equal and opposite reaction"? Are you also familiar with how objects will always take the path of least resistance?
How could 15 stories simply pile-drive through another 80+ stories, straight down, with so little resistance that it was actually in free-fall? The structure would push back if you know anything about physics.
The weight would not simply increase with each floor. Did you fail to see the huge clouds of pulverized debris shooting out horizontally in all directions at 70 mph? That's the path of least resistance and all of that is no longer weight falling down on the stories below.
We're talking about a building that was built to withstand a direct impact from a 707. The buildings were built to handle several times the weight above them. The bottom 80 or so stories had no damage before the collapse. Yet somehow the building fell and actually picked up speed as it crushed 80+ stories of concrete and steel???
If the collapse were engineered, there'd have been no collateral damage.
These towers were 110 stories tall in Manhattan (x2)... What other engineered collapse are you referring to where you know there'd be "no collateral damage." That's complete bullshit.
LOL.
Maris may not realize the WTC collapse did a massive amount of damage to the surrounding buildings.
Or he chooses to ignore it since it doesn't fit his world view of things.
http://en.wikipedia.org/wiki/Collapse_of_the_World_Trade_Center
Aside from the fact your sighting wikipedia as evidence... If building 7 suffered damage why did it fall straight down? It cannot happen that when you have asymmetrical damage you have a near symmetrical collapse. Am I to believe that the scores of steel support columns throughout the building, many of which were not damaged, all failed not only simultaneously, but in sequential order? Because that would be required for building 7 to obtain free-fall straight down for 100 feet, which it did, just like the towers, with no structural resistance.
There are other questions that I'd like answered:
Why did the NIST report claim there were no eye witnesses or evidence of molten steel when there were scores of eye witnesses (like firefighters) who say there was, and molten steel was even filmed pouring from the tower before it fell?
Why would the NIST report then counter by saying that that was molten aluminum, when molten aluminum is silver and what we saw was yellow?
Why was thermite detected in the debris by multiple independent sources, the results of which were published in scientific journals and none to this day have been challenged? FYI, the stuff we're talking about is military grade, it doesn't just float into the debris on accident...
Why did they ship the steel immediately to China to be melted down before an investigation as to the cause of the collapse was done? That's not just incredibly negligent, that's against the law.
Why did the NIST report say there was no evidence of explosives, but when asked if they had looked for any evidence of explosives they said "No"?
Why did the FIMA report describe sulfur residue (sulfur lowers the melting point of iron) on the WTC steel?
Why did the USGS find as much as 6% of the WTC dust consisted of tiny, previously molten iron spheres, to which the USGS had no explanation? The heat source would have had to be much greater than jet fuel fires.
And why was the Freedom of Information Act request to NIST on the calculations & analysis substantiating the failures of the horizontal girders from their seats at columns 79 & 81 denied by NIST, which claimed that by releasing this data it might compromise public safety? This information would be invaluable to engineers and architects to prevent this in the future, and they claim it's for public safety?
Who knows,
I sure don't, but I think the totality of all these questions, proven science and evidence deserves a little consideration, as opposed to dismissing it before even watching the video.
I mean, sure, maybe all these experts in their field aren't as credible as wikipedia

, but I think they're valid questions to ask.
Yeah, I know... I'm just a fucking kook.