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WTC 'Active Thermitic' Pyrotechnic Evidence in 3 Easy Lessons
Jim Hoffman of 911Research.WTC7.net breaks down some of the findings in the Harrit et al 'Active Thermitic Material' paper, in easy to understand language.
The scientific paper Active Thermitic Material Discovered in Dust from the 9/11 World Trade Center Catastrophe provides, quite simply, proof that explosives were used in the destruction of the Twin Towers. Specifically, the paper positively identifies an advanced engineered pyrotechnic material in each of several samples of dust from the destroyed skyscrapers, in the form of tiny chips having red and gray sides and sharing a very specific three-dimensional structure, chemical composition, and ignition behavior.
The basis and validity of this identification can grasped quickly by anyone with a working knowledge of physics and chemistry. They need only read the paper's one-page conlusion, and perhaps its section describing the provenance of the dust samples.
But what of the reader whose strong suit isn't the hard sciences? Does one have to be an expert to understand the findings and evaluate the many claims thrown up by "debunkers" to dismiss those findings?
Fortunately, the answer is no. The central observations of the paper can be understood by any intelligent person with some effort. In this thumbnail summary of the paper's findings, I focus on three easy-to-remember features of the red-gray chips established by the paper -- features that undeniably show that the chips are a high-tech engineered pyrotechnic material. Because my description includes some technical language, I have provided a glossary for the benefit of the non-technical reader.
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Erik Larson
Washington, District Of Columbia, United States



Most RecentMost Recommended Comments (2)
at 18:55 on April 20th, 2009
There was a conference at the University of Manitoba about that and all experts seems to agree that the three buildings could not have come down as they did due to Air Plane impact and fire alone. They had to be blown up with pyrotechnics in very precise way.
Only those Pyrotechnics could have generated the heat released, fire even exploding air jet gas could not have cause the temperature about 1400 degree Celsius and sat recorded 1800 degree Celsius.
at 20:30 on April 20th, 2009
thx, Paschen and everyone recommending this.
There are actually not that many experts willing to publicly defend the "science" behind the official claim that plane damage, office fires and gravity completely destroyed the Twin Towers. The NIST report doesn't actually analyze the "collapse"; just the "inititiation". And about the "collapse", it says the lower 80-95 stories of redundantly-reinforced steel-framed structure provided "minimal resistance" to the 15-30 stories above- so minimal, in fact, that the lower structure came down "essentially in free fall" (146). This was the same structure that it had described as a "strong, rigid box, structurally undamaged and at almost normal temperature." (29) NIST NCSTAR 1