Re: Controlled Demolition Inc : Pull it!

Inviato da  Sertes il 27/7/2008 22:42:15
Citazione:

bubu7 ha scritto:
Oppure perchè la teoria del Pancake quì non si è realizzata:


La teoria pancake era prevista solo nella prima Versione Ufficiale, quella del FEMA e del 9/11 Commission Report

Poi è stata rigettata, nella seconda Versione Ufficiale, quella del NIST:

Citazione:

NIST’s findings do not support the “pancake theory” of collapse, which is premised on a progressive failure of the floor systems in the WTC towers (the composite floor system—that connected the core columns and the perimeter columns—consisted of a grid of steel “trusses” integrated with a concrete slab; see diagram below). Instead, the NIST investigation showed conclusively that the failure of the inwardly bowed perimeter columns initiated collapse and that the occurrence of this inward bowing required the sagging floors to remain connected to the columns and pull the columns inwards. Thus, the floors did not fail progressively to cause a pancaking phenomenon.


http://wtc.nist.gov/pubs/factsheets/faqs_8_2006.htm

Messaggio orinale: https://old.luogocomune.net/site/newbb/viewtopic.php?forum=5&topic_id=4506&post_id=123329