Okay,
1) why did the buildings collapse in 10 seconds?... almost identical to free-fall time.
if the weakened steel caused the collapse, the lower floors would have been able to hold the top floors for more than mere milliseconds
2) if it was the fires in the select floors (around 5 floors in each building), that caused the collapse, how come there was no office equipment from the other 80 floors [thousands and thousands of chairs, cubicles, desks, computers, copiers, fax machines] below the impact point which were not touched by fires found in the pile of rubble?
3) how were firefighters able to reach the floors of impact and respond to the chief with codes determining how bad the fires were and how to secure it when this would of occured: "It appears likely that the impact of the plane crash destroyed a significant number of perimeter columns on several floors of the building, severely weakening the entire system. Initially this was not enough to cause collapse. "
xblackdogx Reviewed by xblackdogx on . How they fell Here is some information on the WTC. from 3rd party...ill link ya http://www.civil.usyd.edu.au/wtc.shtml World Trade Center - Some Engineering Aspects Height: 1,368 and 1,362 feet (417 and 415 meters) Owners: Port Authority of New York and New Jersey. (99 year leased signed in April 2001 to groups including Westfield America and Silverstein Properties) Architect: Minoru Yamasaki, Emery Roth and Sons consulting Rating: 5