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That is the biggy in this argument. The jet fuel exploded into massive fireballs External to the building
Watch one of the videos with the fireball. Freeze frame. Measure the fireball. You will be amazed at how huge it was.
originally posted by: blackaspirin
originally posted by: kyleplatinum
Proof is in the footage. You just see it differently.
The relocation of the oem command center for the 9/12 simulated terrorist attack operation.
The original location of the oem center on the 23rd floor of #7, and the just in time completion of the 13 million dollar addition to #7 prior to 9/11.
The acquisition of the entire WTC by Manhattan developer Larry Silverstein just six weeks before 9/11.
First time the WTC had changed hands in thirty years and the first time it had ever come under private control.
Only 56 minutes to fall.
Timeline.
Insurance.
They knew it was coming, and gave it a helping hand.
They've been at it ever since.
Please stick to the claims, instead of throwing out the usual scattershot 'factoids'
originally posted by: pheonix358
Well done!
That is the biggy in this argument. The jet fuel exploded into massive fireballs External to the building
Watch one of the videos with the fireball. Freeze frame. Measure the fireball. You will be amazed at how huge it was.
P
originally posted by: DanDanDat
Here would be my question. How much man power does it take to control demolish a sky scrapper?
Far more easy to just persuade a bunch of radicals to hijack four jets and fly them into buildings.
That's all it would take to start the war you where looking for. No need to over complicate things by ALSO demolishing the buildings through explosive. No need for the extra planing, the extra loss lips, and cost of the property damage.
Controlled demolition just doesn't pass the logic test.
Show me a video of the team of people laying the explosives; till then the jets took down the buildings.
originally posted by: butcherguy
Even though it only had to weaken the steel in the WTC, kerosene (jet fuel) is capable of producing temperatures of 3,800 degrees F when burned.
The melting point of carbon steel is 2,800 degrees F.
adiabatic flame temperatures
engineering toolbox
originally posted by: kyleplatinum
Call it what you want, I'll disagree.
'whataboutisms' you say?.... How bout coincidences, cause there is alot of them.
You mean the evidence like the jet fuel 'factoids'? .... That stuff was gone almost immediately and thats easy to see.
The only so called fuel in the fires was the office combustibles, which was office debris that was fire coded.
a reply to: Salander
Do you want me to believe that burning jetfuel fires on 8 or 10 floors of a 110 story building, low intensity fires at that, managed to weaken the entire structure causing it to collapse at near free fall speeds?
Do you want me to believe that those fires caused molten iron for about 3 months?
originally posted by: kyleplatinum
originally posted by: MrBig2430
originally posted by: kyleplatinum
originally posted by: introvert
originally posted by: kyleplatinum
originally posted by: introvert
a reply to: FyreByrd
I've seen something like this before.
While steel does melt at a much higher temp that what burning jet fuel can produce, the steel does not have to be melted to become structurally-compromised.
Good video.
So what about all the steel that was not compromised by heat.
#2 fell in 56 minutes! #1 fell in 85 minutes!
1975 WTC #1 fire burned for 3 hours on the 11th floor while spreading to many floors. This fire was more intense (hotter), and suffered no serious structural damage from this fire. In particular, no trusses needed to be replaced.
I think another member mentioned that the structure was not held together through welded joints. It was bolted together. Given enough force from the impact, the fires and the collapse, those bolts were nothing more than sheer pins that broke easily.
In other words, the pancake effect.
So the tower's construction and massive weight was trusted by bolts since day one?
The core (47) columns were mostly welded, but only to maybe 1/2 depth and only on 2 sides. But the top ..... 15-20 were bolted.
The exterior columns were mostly bolted except for the bottom few floors.
Why didn't Tower #1 collapse in the 1975 fire that burned for 3 hours at a way lower level (many floors around floor 11), which had a lot more weight above than 9/11.
4- as others have noted, lower floors have heavier thicker steel. Heavier thicker steel heats slower the the plane impact floors
You're welcome
Save the "your welcome" stuff for someone else.
None of the buildings should not have fell the way they did.
"Lower floors have heavier thicker steel"... exactly. Heavier and thicker steel that wasn't compromised by heat, but oh i forgot, the bolts sheared easily.
You guys say we repeat the same points, well...ditto.
originally posted by: blackaspirin
Gentlemen,
Once the initial failure occurred in the Twin Towers, it was game over. The steel that is farther below the impact points does not need to be heated in order to fail, once the failure at the impact points allowed the entire span of floors above it to come crashing down - that force alone crushed everything beneath it, all the way down as it continued.
So in summary, the steel did not have to 'melt', it merely had to fail. Once that happened, the force exerted by the mass above was too much to bear.
Someone brought up the fact that the 2nd tower to be hit fell more quickly than the 1st. Do you know why?
Because the 2nd tower was hit substantially lower - which means more floors, more mass, was pushing down on the impact point of that tower while the steel was being heated at the impact point. It is perfectly consistent with, wait for it - a top down collapse caused by the impact of the planes and ensuing fires.
Conversely, what is the 'controlled demolition' explanation for why the 2nd tower to be hit collapsed first? The demolition team forgot which building they were supposed to blow up first, and hit the wrong button?
This is not hard to understand, unless you're hell-bent on believing in a government conspiracy, and try to twist yourself in knots to make it work.
originally posted by: xdriver14
Um no
The top third of the building could not in any way crush the lower undamaged part of the building. If the top third was so badly damaged that all support was removed, the top third would have rotated and toppled over. Think for a moment that you are cutting down a tree, if you could remove a section two thirds of the way up and support it so that all of the weight of the upper section can be released to fall straight down on the lower section, what would happen?
The lower section, made of the same material as the upper section would do what?
The lower section would be damaged the exact same amount as the upper section. Since there is more structure below, the most damage possible to the lower section is the entire size of the upper smaller section. This means that if the top damaged section of the tree/building was the top third, then there will still be the lowest third of the building remaining.
However the tree example in real life, like in this attack, would damage one side of the tree more than the other and instead of the top third of the tree crushing the lower 2/3 's all the way to the ground, it would twist and topple over.
Physics lesson concluded.
plus the fact it was heavy Structural steel ,not a piece of steel rod the thickness of your thumb
originally posted by: blackaspirin
originally posted by: xdriver14
Um no
The top third of the building could not in any way crush the lower undamaged part of the building. If the top third was so badly damaged that all support was removed, the top third would have rotated and toppled over. Think for a moment that you are cutting down a tree, if you could remove a section two thirds of the way up and support it so that all of the weight of the upper section can be released to fall straight down on the lower section, what would happen?
The lower section, made of the same material as the upper section would do what?
The lower section would be damaged the exact same amount as the upper section. Since there is more structure below, the most damage possible to the lower section is the entire size of the upper smaller section. This means that if the top damaged section of the tree/building was the top third, then there will still be the lowest third of the building remaining.
However the tree example in real life, like in this attack, would damage one side of the tree more than the other and instead of the top third of the tree crushing the lower 2/3 's all the way to the ground, it would twist and topple over.
Physics lesson concluded.
I would encourage you to contact some physicists at respected universities, and run that logic by them. I hope you aren't adversely affected by laughter.
In short, a tree is nothing like a skyscraper (a large structure interconnected my a multitude of parts), and any attempt to compare the two is absurd. Gravity will also dictate that once that failure at the impact point occurs, the mass above will attempt to go straight down, and crush everything below it. Have your local physicist calculate the amount of force that is generated by that mass, and what it would take to stop it. Once that initial failure occurred, the buildings were coming down - and no, they don't 'topple to the side', there's nothing pushing them sideways.
If what you summarized is correct, there's a perfect way to proceed - have a qualified physicist put it into a technical paper and introduce it to respected physics journals, and see how it fares.
You guys can't keep claiming all of this is 'so obvious', and yet refuse to do the work within the scientific community. After 16 years, it's still message boards and YouTube. Physicists around the world aren't in on some big conspiracy to hide the truth from you, the more likely explanation, by far, is - you don't know what you're talking about, despite being certain that you do.
originally posted by: loveguy
Neat. But that theory only works if all the floors are glowing, as dude showed us in his video. The entire tower structure(s) had to be from a furnace...to suffer a global collapse. He clearly supported the anvil with a piece of 'unheated' structural steel, didn't he?
Thanks for keeping this travesty of justice alive, not!
[/quote
The video in the open is nice but deceptive. First of all the steel was loaded in compression. Steel is very strong in this mode. If you noticed when he banged the rod on the anvil it did not collapse. It is more maleable on a side load than under compression.
Secondly the piece of steel was very small and it took a small forge quite a few minutes to heat it up. In the building the steel would have absorbed the heat and moved it along the steel. Spoon in hot coffee idea.
The biggest red flag as has been mentioned by other in this thread is that the failure took the highest resistance route to the ground. That does not happen in real life. Ever.
Every foot of damage to the lower section would create a foot of damage to the upper section.
Last experiment to run past you. Take 3 bricks stand them end to end on top of each other. Take a 4th brick raise it to any height you like and then drop it on the 3 stacked bricks. I bet you can repeat this 1000 times and you will always have 2 bricks left over.
9/11 and the Science
of Controlled Demolitions
www.skeptic.com...
3WHAT ABOUT THE ALMOST FREE-FALL COLLAPSE OF THE TWIN TOWERS? The key is the “almost” modifier. If I told you I was making almost $100,000 and you found out I was making only $67,000, you’d say I was exaggerating. So stop exaggerating the collapse speed of the WTC Towers! The 80,000 tons of structural steel slowed down the collapses of the Twin Towers to about ⅔ (two-thirds) of free-fall.3 And the core collapsed at about 40% of free-fall speed, coming down last.4 According to Richard Gage: “To bring a building symmetrically down, what we have to do is remove the core columns.” But on 9/11 the stronger core columns came down last, which violates this supposed most fundamental rule of controlled demolition.
originally posted by: xdriver14
2 similar materials will deform and destruct at the same rate. Less material above than below means it can not crush it to the ground.
I can not fathom how you don't get this. The crushing of a lower floor by the floor above it will consume 1 floor above and below. There were insufficient floors above the damage to destroy all the floor below.
originally posted by: xdriver14The tree analogy works perfectly. The material above and below is the same. Trying to stay civil under the stress of trying to explain simple physics. Let's talk collision physics. Imagine you had 2 model train cars set up on a track and you are going to collide them together. Each car is exactly the same weight but made of cement. Just for clarity only 1 car is in motion the other stopped by something immovable. You will see that both train cars are equally damaged. Same forces on each.
Now make the non moving train car twice a 's large and leave the moving car the same weight. The smaller train car will disintegrate and leave the non moving car shorter but still but still there.