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randyvs
reply to post by Aloysius the Gaul
Just the fact that there even is a " Pilots for 911 truth " shatters the OS.
Not just in my opinion, but absolutely.
Good job NAM
And everyone who participated here in has to admit that.
Against all odds.edit on 7-12-2013 by randyvs because: (no reason given)
NewAgeMan
As you say, they do not address the nature of the destruction of the twin towers, you're right about that.
NewAgeMan
then there are over 2000 courageous registered professional architects and engineers for whom the "collapse" hypothesis just doesn't pass muster.
the physical evidence and proof that the twin towers did not really "collapse" but came down as a result of a high precision engineered CD (controlled demolition)
we will then also take a look at evidence proving that active thermite was also present,
Sorry but it proves NOTHING about the collapse of the towers!!!
wmd_2008
reply to post by NewAgeMan
YOU don't understand the LOADS that the structure was under at the time or the DYNAMIC LOAD imposed on the lower structure as it fell I will give you an example which may help.
Lets look at a 10kg object falling the the height of a WTC floor approx 4mts
Use this link Impact Calculator
Impact energy just before it touches the floor below 392J of energy.
The next part is the hardest as the structure below DIDN'T/COULDN'T resit the load lets work it out if it just manage to.
The floor trusses were supported on cleats (angle iron) welded at the core side to a channel welded to the core columns and also to the wall columns.
Truss image below
911review.org...
There are images showing cleats sheared off so the weld failed and some of the top part of the cleat sheared off.
This cleat was about 1" (25.4mm) thick lest say that stops our dropping load just at the point it's about to shear so 25.4mm or 0.0254 mtr put that in the calculator above.
That gives a figure of 15433 n now dived that by 9.81 to convert to kg and that is 1573kg or 1.5 tons of impact energy.
The floors FAILED as the falling load hit them so that's why I made the assumption if they did stop they didn't so whats your take on that.
This is just to illustrate the HUGE loads generated in such a situation we can NEVER know the exact details of the impact events we can only see the result.
In fact here is a link to calculations of force on a driver in a crash.
Force on driver in a car crash
DON'T drive to close eh!!!
You must understand that the whole premise and basis of the explanatory hypothesis offered in this thread is founded on the physical evidence and proof that the twin towers did not really "collapse" but came down as a result of a high precision engineered CD (controlled demolition), commencing at around the areas of plane impact (where the upgrades and renovations by Turner Construction also just so happened to take place), and then progressing in an explosively ejecting debris wave all the way down the remaining structure (without any loss of momentum) to within 4-6 seconds of the time it would take for any freely dropped object from the height of the building to hit the ground when dropped through nothing but air alone, where the difference between a fall through air, and a "collapse" through steel or the path of maximal resistance, is only about maybe 4-6 seconds, and which, therefore, because we're comparing a drop through absolutely nothing (but air) on the one hand, and one through steel (path of maximal resistance), on the other, leaves only that difference of time, for every single weld, bolt and joint, all along the remaining structure, to break apart.
randyvs
reply to post by wmd_2008
You really should just admit defeat. It would look so much better for you.
You are the one who has no idea as per the strength of the risers.
Cognitive dissonnance.
Sorry but it proves NOTHING about the collapse of the towers!!!
Sorry but it proves NOTHING about the collapse of the towers!!!
Sorry but as I said, it shatters the OS.edit on 7-12-2013 by randyvs because: (no reason given)
toidiem
reply to post by wmd_2008
But the tube in a tube design, as you call it, is the problem with the pancaking explanation. The outer tube pancaking would not bring down the steel core. The inner tube, or core, should have remained standing for some time, at least long enough to have been seen after the floors collapsed around it. Are you suggesting the inner tube, which contained stairs and elevator shafts, collapsed at the same rate as the pancaking outer concrete floors?
Another problem I have is with all the dust we see. It defies explanation to be coming just from pancaking slabs of concrete and steel.edit on 8-12-2013 by toidiem because: punctuation
NewAgeMan
where is that top block that you claim crushed the remaining structure to within about 4-6 SECONDS of
It was a tube in tube design, floors could fall internally due to this design and they did !!!!
randyvs
reply to post by wmd_2008
It was a tube in tube design, floors could fall internally due to this design and they did !!!!
You are completely 100% wrong and just gave yourself away. The structure has nothing to do
with tubes. Except for the curtain wall. Which is the outer facade capture for the glass.
So blow that smoke somewhere else. You don't even know what you're talking about.
I know exactly how buildings go up pard. Been there, done that.
randyvs
reply to post by wmd_2008
That's quite simply a reference not used in the field and has
nothing to do with any of risers or columns being tubular pal
that's just silly if you think it does. No tubes.lol
One Shell Plaza was the tallest building west of the Mississippi River and the tallest reinforced concrete structure in the world. It is the first all-lightweight concrete building and one of the first tube-in-tube structures ever built.
Framed Tube (system of rigid frames)
- Bundled Tube (combination of framed tubes)
- Tube in Tube (central and peripheral framed tubes)