Proof to put the 9/11 Truthers to bed in less than 2 mins

Yes there was and you're an idiot for suggesting otherwise. Once one floor collapsed the others didn't have the strength to support them. 10 or more floors collapsed and their entire energy fell on the floor below.

It was a house of cards and once one floor buckled the rest were sure to follow.

Wow. So a person expresses their opinion and their an idiot for it? Keep thinkng that everything the government has told us about 9/11 is true and immune from questioning.

Plenty of credible scientists have questioned the findngs of the 9/11 reports on the building collapses. But I guess you know way more than all of them.
 
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Wow. So a person expresses their opinion and their an idiot for it? Keep thinkng that everything the government has told us about 9/11 is true and immune from questioning.

Plenty of credible scientists have questioned the findngs of the 9/11 reports on the building collapses. But I guess you know way more than all of them.

He needs to take a physics class. Tunics is not it...
 
The primary thing I've never quite understood about the 9-11 Truthers who fall into the "Bomb Theory" subgroup is that the fact of the matter is that simply hitting the buildings with the two planes was sufficient for achieving the purposes of the plotters. It's not like they needed to bring down the towers as well. Whatever they hoped to gain from the plot was achieved merely by hitting the towers with the planes. Besides, even if they also wanted to bring down the towers, the mere fact that they were hit would have accomplished that, as the collisions would have most likely made the two buildings unsalvageable. I highly doubt any government group in charge of safety and inspections would have allowed the buildings to have simply been reinforced. They most likely would have had to come down after being hit.

The "Bomb Theory" makes absolutely no sense to me or to any rational human being who doesn't have a clear agenda. The non-Bomb Theory "Government Plot" group can still make sense though, because it's always possible that anything that happens on Earth could be a conspiracy. It's like pointing out that grass grows when watered well, or something, and it takes just about as much critical thought.
 
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Not trying to win. Just open eyes. Physics doesn't lie no matter how big or small...

Build a 20 ft replica of the the wtc out of ANTHING you want. Try 1/2 inch rebar for example. Compromise the top 6-8 ft of it in any fashion you want....the bottom will remain. Science doesn't lie..
half inch rebar will be out of scale..... way out of scale, and that matters.



I am not getting dragged into this idiotic argument again with you though.
 
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The primary thing I've never quite understood about the 9-11 Truthers who fall into the "Bomb Theory" subgroup is that the fact of the matter is that simply hitting the buildings with the two planes was sufficient for achieving the purposes of the plotters. It's not like they needed to bring down the towers as well. Whatever they hoped to gain from the plot was achieved merely by hitting the towers with the planes. Besides, even if they also wanted to bring down the towers, the mere fact that they were hit would have accomplished that, as the collisions would have most likely made the two buildings unsalvageable. I highly doubt any government group in charge of safety and inspections would have allowed the buildings to have simply been reinforced. They most likely would have had to come down after being hit.

The "Bomb Theory" makes absolutely no sense to me or to any rational human being who doesn't have a clear agenda. The non-Bomb Theory "Government Plot" group can still make sense though, because it's always possible that anything that happens on Earth could be a conspiracy. It's like pointing out that grass grows when watered well, or something, and it takes just about as much critical thought.

Thousands of architects and engineers have refuted the official story from the government. Not because the are they're conspiracist, but because the physical proof does not add up.

There are obviously many more minions that echo the govt story because of limited thoughts..
 
Thousands of architects and engineers have refuted the official story from the government. Not because the are they're conspiracist, but because the physical proof does not add up.

There are obviously many more minions that echo the govt story because of limited thoughts..
limited thoughts. funny shiz right thur.
 
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I feel like we're very close to getting this solved. Anytime now we'll all come to an agreement.

Very true. Just a matter of time before we come to an agreement on the matter. ha!

One thing that I find despicable about the Truthers though is it seems to never quite dawn on them how disgusting their completely unfounded accusations are in that it co-opts a tragedy to further some sort of sick agenda. It really is sad and pathetic, and it makes them the exact scumbags that they claim to be accusing. If there was evidence, that would be one thing, but there is absolutely none. Anomalies or things that give us pause? Perhaps, but that is not the same as evidence. That's merely speculation, but I realize that, sadly, too many often tend to confuse speculation with evidence.
 
The kinetic energy of several floors collapsing on another floor would lead to that kinetic energy being dissipated and distributed to the lower floor. That means you would need enough energy to make not only the floor below yield, but all the remain floors below to yield.

The summation of the kinetic energy of several floors falling 20 feet = summation of all of the energy needed to yield and collapse each of the remaining lower floors

When you sit down and really think about one floor or even a set of floors having enough kinetic energy to pile drive an entire building with nothing more acting on it than gravity, you have to come to the conclusion that the equation in RED violates the 1st Law of Thermodynamics in this particular case...

[youtube]https://www.youtube.com/watch?v=hBqZh2suZMM[/youtube]
 
Why Did the World Trade Center Collapse? Science, Engineering, and Speculation

What happens when the angle clips supporting the floor joists fail?

fig5.gif
 
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Man, they're some first class nuts in this thread. I work in the steel
Business too. I've done everything from grind steel, burn it, bend it to radii, weld it, and now I project manage and estimate steel structures. Ill take the word of the engineers and those in the business over guys who are ready to jump on any conspiracy theory.
 
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What happens when the angle clips supporting the floor joists fail?

fig5.gif

The floor falls and inelastically collides with the floor below it. In the case of the WTC 1 & 2, the kinetic energy of the floor falling would have been transmitted to the floor and angle clips to cause catastrophic failure. This would have had to happen at free fall velocity, meaning that the angle clips would have had to have failed immediately upon impact. Also, the assumption made is that the heat from the fire and the structural damage was the catalyst. So now, what you would have is debris and flooring falling downward into more structurally secure and floors least affected by heat/fire. The floors and strength of the angle clips would have/should have gotten stronger with each successive floor that crumbled.
 
The floor falls and inelastically collides with the floor below it. In the case of the WTC 1 & 2, the kinetic energy of the floor falling would have been transmitted to the floor and angle clips to cause catastrophic failure. This would have had to happen at free fall velocity, meaning that the angle clips would have had to have failed immediately upon impact. Also, the assumption made is that the heat from the fire and the structural damage was the catalyst. So now, what you would have is debris and flooring falling downward into more structurally secure and floors least affected by heat/fire. The floors and strength of the angle clips would have/should have gotten stronger with each successive floor that crumbled.

Should've read the article.

The clips were designed to hold 1300 tons in addition to the floor itself not the weight of all the floors above (45,000 tons).

Nearly every large building has a redundant design that allows for loss of one primary structural member, such as a column. However, when multiple members fail, the shifting loads eventually overstress the adjacent members and the collapse occurs like a row of dominoes falling down.

The perimeter tube design of the WTC was highly redundant. It survived the loss of several exterior columns due to aircraft impact, but the ensuing fire led to other steel failures. Many structural engineers believe that the weak points—the limiting factors on design allowables—were the angle clips that held the floor joists between the columns on the perimeter wall and the core structure (see Figure 5). 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.

As the joists on one or two of the most heavily burned floors gave way and the outer box columns began to bow outward, the floors above them also fell. 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. This started the domino effect that caused the buildings to collapse within ten seconds, hitting bottom with an estimated speed of 200 km per hour. If it had been free fall, with no restraint, the collapse would have only taken eight seconds and would have impacted at 300 km/h. It has been suggested that it was fortunate that the WTC did not tip over onto other buildings surrounding the area. There are several points that should be made. First, the building is not solid; it is 95 percent air and, hence, can implode onto itself. Second, there is no lateral load, even the impact of a speeding aircraft, which is sufficient to move the center of gravity one hundred feet to the side such that it is not within the base footprint of the structure. Third, given the near free-fall collapse, there was insufficient time for portions to attain significant lateral velocity. To summarize all of these points, a 500,000 t structure has too much inertia to fall in any direction other than nearly straight down.
 
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