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Originally posted by -PLB-
I can point you to a physical scale model of the 96th floor of the WTC tower which confirmed that collapse would initiate.
Originally posted by Nutter
So, you guys aren't proponents of the "how could they rig 110-story buildings without beeing seen" crowd?
I guess not if you believe that fire failing one story can cause global collapse of the towers.
So, the next time I see the logical fallacy of "how could they rig 110 storys whithout being seen" I will direct them to this thread where the debunkers themselves have proven without a shadow of a doubt that only one story need be compromised.
Thanks guys. (Joey...et al)
Originally posted by waypastvne
So you're not one of the 8.4 kilotons of explosives snuck in to each building guys then ?
You could be the first truther to show us that you actually under stand what F=ma means.
Originally posted by Nutter
Force equals mass times acceleration. Isn't too hard to understand.
The problem is getting the acceleration.
The only way to get a full on acceleration due to gravity is to sever (either fire induced or other) the entire floor's column structure. If they aren't fully severed then they will still have some resistance and the acceleration becomes less than g (acceleration due to gravity).
A better way to calculate the force would be to actually use the time it took the first top floor to hit the next floor. And derive the velocity from the time and distance integrals and then derive the acceleration with the velocity integral.
That would be much more precise than just using g as the acceleration.
Originally posted by waypastvne
To find a you need three things speed at impact, speed after impact, time or distance it took to go from one speed to the other.
You do know that load calculations incorporate a factor of safety correct?
Thus not giving us an exact figure.
What's wrong with giving us the structural steel schedule?
Originally posted by waypastvne
Let's fill in all the blank for them so they don't have to guess at the variables, They just have to give us the total for force (F)
F=ma
Mass (M) = 700 tons
Initial Speed (v0) = 8 meters per second
Final Speed (v1) = 0 meters per second
Time (t) = .1 second
(If you prefer using distance rather than time):
Distance (d) = 1 meter
Don't forget to add in the force of potential energy pushing up:-)
Originally posted by earth2mayavision
Actually, there has been an official hearing of evidence in Toronto, Canada, which was heard by four judges (one an honary Italian Supreme Court Judge). This took place over four-day period (Sep 8-11). An excerpt of the objectives of this hearing/inquest is as follows:
Originally posted by Nutter
Vf=Vi + 2at
8 = 2a(.1)
A=40 m/s^2
F=ma = 700 kg * 40m/s^2
F=28000 N = 28 KN
What's the point of this exercise again?
BTW, the "force of potential energy pushing up"?
Originally posted by hooper
No, they do not. Engineers calculate the real world loads as close as possible. The safety factor is then incorporated into the proposed structural design.
The schedule? You mean the shop drawings? The framing plans? The "as-builts" or as they are now more often called the record drawings?
Bill of Material
The bill of material block contains a list of the
parts and/or material needed for the project. The block
identifies parts and materials by stock number or other
appropriate number, and lists the quantities requited.
The bill of material often contains a list of
standard parts, known as a parts list or schedule.
Originally posted by Perhaps
reply to post by GoodOlDave
There is this....
Tell me something, in all honesty, why don't you truthers stop chanting "we need more investigations"....
..and then, there is this....
I can't speak for anyone else, but I have always made it plain that I support more investigations because....
Originally posted by Doctor Smith
GoodOlDave Droned.
reply to post by GoodOlDave
Tell me something, in all honesty, why don't you truthers stop chanting "we need more investigations" like it was a religious mantra and hold your own investigation?
What do you think we are doing on this site sharing information and ideas? We don't have the legal authority to subpoena.
This is the crime of the century, and they spent way less on the investigation than Clintons diversion sex scandal? The honest investigators all admitted it was a white wash. Ignoring the mountains of evidence, just the fact they spent very little is at least very suspicious.
Originally posted by hooper
reply to post by Nutter
Bill of Materials for the steel????
You have no idea what you're talking about.
Schedules (Exhibit 9)
There are usually three different schedules provided by the architect somewhere in the drawings. There is the Schedule of Finishes, which provide a listing of the rooms or spaces in the building, and the various ceiling, wall and floor finishes. Some architects provide very detailed schedules, while others provide only basic information. There are the door and window schedules which provide a listing and description of the various doors and windows to be used in the building.
In each of these schedules, there is no standard format, architects basically use whatever they feel is adequate for any particular project.
Although this article does not specifically address the engineering drawings, the various types of drawings, plans, sections, etc. are similar and applicable to the engineering drawings as well as the architectural.
Originally posted by hooper
reply to post by Nutter
Bill of Materials for the steel????
Bill of Materials (BoM):
Typically, a CAD draftsman prepares the bill of materials listing all structural members of the steel framing separately. The bill of materials is displayed on all shop drawings and contain information such as required material quantity, erection marks, shop and field fasteners, size of connecting plates, etc.
Originally posted by Nutter
No. I ment schedule. Look it up.
Originally posted by Nutter
Shall I continue or are we going to admit that we were wrong?
On page 2 under "Another Perspective: Initial Vertical Velocity" they explain that a velocity needed to collapse the first floor can be achieved from a free fall of 3.69 m (which they then explain is over one story but is clearly beyond the range of possibilities).