vacuum. Not the acceleration of a building collapsing like a pack of cards in an atmosphere. " Indeed exactly my point. If you check out 911blogger there is a diagram with a simple graph of the collapse speed of WTC7 and the acceleration for the majority of the duration of the collapse was calculated at near enough 9.8 m/s/s or 32feet/s/s - free fall. This is high school applied mathematics. If you apply physics to this, it shows that there was no internal resistance within the structure as it fell. This is seen within Controlled Demolition but not within usual building collpases due to fire. This about as factual as you can get. The NIST WTC7 report does not explain the collapse acceleration at all. Nor the molten steel, melting on steel beams, dust analysis. The only explosion simulation assumes dynamite-like explosives and not, for example nano-thermite, an explosive which appears to fit the dust analysis samples and upon which NIST themselves have expertise. Providing you have no axe to grind in supporting the official 9/11 story, I am happy to discuss this further with you. Comment number 74. A boy steals a postal order, is found guilty after a quick internal inquiry then after months of fighting for the the truth, and with detrimental effect to allthose concerned, eventually they get there day in court and the boy is found innocent. your right that more should be aware of this it amlost mirrors what is happening with the debate