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Has there ever been any analysis or investigation examining the microstructure of the steel from the beams?
RJ Lee Group Confirms: No Evidence of Explosives and Thermite in its Dust Samples
No Thermite Found
The R.J. Lee Company did a 2003 study on the dust and didn't find thermitic material. Other sampling of the pulverized dust by United States Geological Survey and RJ Lee did not report any evidence of thermite or explosives. It has been theorized the "thermite material" found was primer paint.
No evidence has ever been found of explosive charges and there are no recordings of a series of very loud explosions that would have been expected with controlled demolition. Furthermore, there is an alternative explanation for the "thermitic material" the sceptical scientists found in the dust - it is just a type of primer paint. It's calculated 1,200,000 tonnes of building materials were pulverised at the World Trade Center and most minerals are present in the dust (not necessarily in a large quantity).
More extensive sampling of the dust has not found any evidence of thermite or explosives, says a report from the US Geological Survey.
The RJ Group
The RJ Lee Group report considers samples taken several months after the collapses, and it is certain that torch-cutting of steel beams as part of the cleanup process contributed some, if not all, of the spherules seen in these samples.
I am not sure if this is legit. They found sulphur.
originally posted by: skyeagle409
This video is a load of crap, there was no pancaking, if air was being pushed out we would not see it. Instead we see debris..edit on 19-12-2015 by wildb because: (no reason given)
my argument referring to physics as the explanation for debris flying horizontally stands
'm not so sure, gravity does not have energy to propel a steel beam weighing 18 thousand pounds over 600 feet.