It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
All truth passes through three stages.
First, it is ridiculed.
Second, it is violently opposed.
Third, it is accepted as being self-evident.
randyvs
reply to post by wmd_2008
We possibly have another misunderstanding then. As long as you aren't
saying the columns were tubular in design and detail. Because I know
damn well their not.
And your nose has no business in this part of the discussion Zaph.
So don't try. You'll just get spanked again.edit on 8-12-2013 by randyvs because: (no reason given)
NewAgeMan
Bottom line here is that the reader isn't an idiot and has watched the video of the North Tower exploding, and have also noted the time difference between free fall and the destruction itself as well as the fact that there was no loss of momentum or in other words that the debris wave kept exploding all the way down the remaining structure (at near free fall speed) even when there was rather significantly less building above. Steel core within in a steel perimeter as a "tube in tube" makes no difference, that's just another attempt at deception to try to defend, uphold and guard the official story, which cannot be accepted or believed in light of the laws of physics, like the first and third laws and conservation of momentum.
It's self evident.
All truth passes through three stages.
First, it is ridiculed.
Second, it is violently opposed.
Third, it is accepted as being self-evident.
randyvs
reply to post by wmd_2008
What do you mean wrong ! Nothing wrong in what I'm saying.
You're the one who was trying to pass off some ultimate design
reference as the design and detail of the vertical columns.
Where's my apology ?
randyvs
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
It even says this in your link or one of the many I've looked
at " That the gravity load is shared by the core columns."
randyvs
reply to post by wmd_2008
It's not used in the field because there is no use for it there.
You're the one who brought it up. And it has no bearing on the
gravity load of the core COLUMNS not tubes. As you tried toi suggest.
It was a tube in tube design, floors could fall internally due to this design and they did !!!!
Zaphod58
reply to post by randyvs
Ok. If you say so. I still don't remember the first time, but whatever.
leostokes
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 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.
The floors FAILED as the falling load hit them
This is just to illustrate the HUGE loads generated
You have ignored my question twice now in this thread. Here is the third version. What kind of seismic reading would you expect when this huge load hits the ground?
leostokes
If it were a controlled demolition.
Zaphod58
reply to post by NewAgeMan
So you're sticking with the "It's impossible for a plane to dive down, go past it's operating limit speeds, and not fall apart" then huh. Ok, if you say so.
Zaphod58
reply to post by NewAgeMan
So you're sticking with the "It's impossible for a plane to dive down, go past it's operating limit speeds, and not fall apart" then huh. Ok, if you say so.