Building 7

It's still 'common knowledge' that fire brought down the WTC. I find this difficult to believe for two reasons. First, my father worked for the FAA and told me in great detail why they had required the airlines to reformulate their jet fuel (kerosene) so that in the event of a crash, the occupants wouldn't be vaporized like they were in the early jet crashes; as in the one over NYC in 1960, and the resulting survival rates would be more acceptable. As I recall, kerosene burns somewhere around 1700 degrees F, while reformulated jet fuel now burns at between 500 and 600 degrees F in open air. Most of the fuel in those jets blew outside the WTC buildings in a huge fireball and the dark smoke confirmed what one ill-fated fireman was recorded as saying - he could put the fire out with two hoses. It was no serious fire and it was fading. The second reason being that I used to work with steel buildings and am unfortunate enough to be able to read engineering specs on them. If you can find it on the net in 2003 NIST posted a mock-up test they did on a prototype of a typical WTC floor; bar joists, bracing, decking, concrete, columns, beams. They rebuilt an identical section in their lab and then exposed it to various temperature ranges over a three hour period. Over 124 pages they went into mind numbing details about how the test was devised and carried out. The temp ranges to which they subjected the mockup ranged from 1400 to 2000 degrees F for three hours. I finally got to the end; ok great. What happened? And of course, the results were buried. After backtracking several times I found a nondescript chart with the final results under the heading ‘worst case scenario’. "Structural failure" the leading entry read. I followed it over several columns which directed me down to some footnotes and under the fourth footnote heading I found "did not occur". They subjected the mockup two to three times the duration at temperatures two to three times as high and "Structural Failure - did not occur". Didn't surprise me. If you check the specs on the WTC towers, those flimsy outside columns which simply disappeared during the demolition weigh a mere 2000 pounds per vertical foot in the lower floors. There are three main loads associated with a building: dead load, live load and wind load. Dead load is what it takes for the building to carry the weight of itself. Wind load is how it reacts to various wind speeds. Live load is how the building is designed to take active forces upon it such as elevators or cars parking in the lower levels. The live loads were 20X. Twenty times the expected loads it would ever experience. If anything was going to cause structural failure, it was the initial impact of those jets. The WTC buildings were designed to withstand a strike from a 707 and remain standing, and did so with great success. __________________ Here the lease owner Larry Silverstein has a serious ‘senior moment’ and admits bldg 7 was ‘pulled’. This is a serious smoking gun along with the fact that thermate residue was identified from dust collected from several points surrounding the WTC complex. http://www.youtube.com/watch?v=sBOel-LyJ_E