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Originally posted by OrionStars
All this is involved in conservation of energy - momentum, velocity weight, mass, and gravity.
They didn't end up fallen about a stump core, or crushed upon a fallen core, as your scenario would predict.
Originally posted by gottago
Thank you for posting the photo. I am merely using the photo for in general clarification purposes. I do hope it is not a problem using it for that purpose, gottago.
What is primarily seen is the outside perimeter steel primary load bearing wall sections and steel facade sections. I see no recognizable steel, in the photo, from inside either twin tower. At least, not in the above photo. A great deal of granulation type debris is apparent, but no recoginizable steel from inside the twin towers.
Originally posted by ANOK
I'm not sure if you understand how the towers were built? Not trying to be condescending but let me explain in simple terms.
The floors were attached to central core and outer walls. The central core ran all the way from bottom to top in 3 sections welded and bolted together. 47 massive 4-6" thick steel box columns with multiple cross bracing. Those huge pieces you see in short neatly cut lengths are central core columns (see pic bellow). Think of the floors like a record on a spindle. If the record was attached to the spindle and the attachments came loose allowing the record to fall what would happen to the spindle? Any idea?
What made the central core globally collapse down on itself? Can you explain what NIST failed to do?
How did they get cut so neatly?
And I figured now I would offer a thought on the fires.
Heat rises. The steel of those supports are getting hotter and hotter.
And those of course radiate their heat mostly up.
Into a very good insulator known as concrete which does take some of the heat but deflects a good amount of it back to the steel supports in turn making them stay really hot and getting hotter and closer to plasticy stage of melting metal. Which of course reduces the strength of the structure to stay up, which after a little bit gravity takes over and does what it does enthusiasticly which is pull things down. And that is coupled with the sheer weight we are talking about here.
And remember we still have the highly enthusiastic burning of the fires creating even more head that follows the above progression.
Jet fuel once burning is after all highly enthusiastic in said process.
Please note I don't mean the above description as an insult to anyone it just amused me at typing this to use cutesy wording.
I am like that at times. I love to amuse myself.
I mean no offense.
Originally posted by WraothAscendant
Methinks I spy a little of the core standing up here. (refering to a previous post by gottago)
Fig 2. Tree columns are 51 ft long, weigh up to 51 tons.