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Originally posted by Chordz
Building 7 could have collapsed in this manner only if the main support columns AND perimeter columns were cut or compromised, it simply can't happen any other way. Imagine if buildings would collapse like all three towers did every time a fire broke out.
Originally posted by Chordz
reply to post by Varemia
Nothing in an office environment could burn any where near the melting point of steel, that fire could burn for weeks and do nothing!
Operation Northwoods, or Northwoods, was a false-flag operation plan that originated within the United States government in 1962. The plan called for Central Intelligence Agency (CIA) or other operatives to commit genuine acts of terrorism in U.S. cities and elsewhere. These acts of terrorism were to be blamed on Cuba in order to create public support for a war against that nation, which had recently become communist under Fidel Castro.
Originally posted by AndrewJay
en.wikipedia.org...
Operation Northwoods, or Northwoods, was a false-flag operation plan that originated within the United States government in 1962. The plan called for Central Intelligence Agency (CIA) or other operatives to commit genuine acts of terrorism in U.S. cities and elsewhere. These acts of terrorism were to be blamed on Cuba in order to create public support for a war against that nation, which had recently become communist under Fidel Castro.
Originally posted by Chordz
reply to post by Varemia
Have you even seen the video? You can't be serious.
Originally posted by Chordz
reply to post by Varemia
A 67 is basically a hollow tube with strenght coming from the keel beam and wing spars, that's about it. They did not take down the twin towers.
Originally posted by Chordz
reply to post by Varemia
The problem is that happened twice on the same day with the exact results with different impact speeds, heights and angles.
Originally posted by Varemia
Originally posted by Chordz
reply to post by Varemia
The problem is that happened twice on the same day with the exact results with different impact speeds, heights and angles.
Which stands to reason that it was an effect that the builders had not anticipated when the towers were constructed. They factored in impact damage and heat tolerance, but not multiple heat levels at once along with impact damage. The fact that the towers took varying lengths of time to collapse should attest to that.
Originally posted by Varemia
Originally posted by Chordz
reply to post by Varemia
The problem is that happened twice on the same day with the exact results with different impact speeds, heights and angles.
Which stands to reason that it was an effect that the builders had not anticipated when the towers were constructed. They factored in impact damage and heat tolerance, but not multiple heat levels at once along with impact damage. The fact that the towers took varying lengths of time to collapse should attest to that.
Originally posted by Son of WillWhat I see from your logic, is the assumption that these buildings are built to only support their own weight with a bit left over. The actual reality is that they were built to withstand their own weight multiple times over. Building 7 had some damage to one corner, and a few small fires. I saw you referencing "thermal expansion" of the main columns - but I've seen no evidence of such asymmetric heat distribution among heat-conducting steel columns. It's all pure speculation, and based on poor logic at that.
Originally posted by ChordzEven in the case of weakened steel from fire, as you say, would you expect no resistance and free fall?
It is important to note that that although Eagar is a Professor in the MIT Department of Materials Science, his specific concentration is not in structural analysis or failure analysis, subjects which would give him true expertise in collapse analysis, but in the field of metallurgy and specifically the properties of exotic welding alloys. His novel theories of the properties of tall buildings being dependent not on their proportions but on absolute size, i.e. that a tall slender object greater than a certain size will lose the ability to topple over and can only fail by telescoping into itself, have never been expressed by any actual structural engineer to my knowledge and are provably false. His assertion that the top of the building cannot be pushed far enough to move the center of gravity outside of the building's footprint is irrelevant to the realities of an actual collapse, since it imagines a situation in which the top of an intact tower is pushed to one side to initiate the collapse. This is an odd hypothetical, since it imagines a tower that is not attached to the ground being tipped over by a lateral force. But even so he gets the distance wrong, since the actual center of gravity was near the middle floors of the tower - the top would have to have moved at least twice as far for the middle floors to move the required 104 feet.