WTC Building 7, also known as the Salomon Brothers Building or WTC 7, was a 47–story skyscraper that was part of the World Trade Center complex. Built in 1984, Building 7 would have been the tallest high–rise in thirty–three of our United States. Building 7…
Abstract: The seismic signals propagating from New York on September 11, 2001, recorded at Palisades (34 km) and published by the Lamont-Doherty Earth Observatory of Columbia University (LDEO), have here been subjected to a new critical study concerning their sources. The aim of this paper is…
Introduction: The “Analysis of Structural Response of WTC 7 to Fire and Sequential Failures Leading to Collapse” (McAllister et al. 2012) published by the American Society of Civil Engineers (ASCE) presents a complex procedure used to analyze the structural behavior of Seven World Trade Center (WTC…
The final section of Popular Mechanics’ chapter on the Twin Towers addresses a theory that is not widely believed among members of the 9/11 Truth Movement: that large seismic spikes indicative of explosions occurred before the Towers collapsed.
A daring new documentary that uses scientific analysis to challenge the official 9/11 story became the most popular film on PBS during the week of the 9/11 anniversary, which followed its record-breaking broadcast on Colorado Public Television (CPT12).
Airplane impact tests conducted by WTC structural engineers in 1964, during the design of the Twin Towers, calculated that the towers would handle the impact of a Boeing 707 traveling at 600 mph without collapsing. Technical comparisons show that the 707 has more destructive force…
The next section of Popular Mechanics’ book deals with another subject not previously dealt with in the 2006 edition: the nanothermite discovered in dust samples from the World Trade Center
Thermite is a mixture of a metal and the oxide of another metal that produces temperatures well in excess of 4000° F when ignited, certainly high enough to allow cuts through the structural steel of the Twin Towers. Nanothermite is a nano-engineered variant of thermite…
The next section of Popular Mechanics’ book deals with one of the more direct pieces of evidence of demolition for the Towers — the isolated ejections of dust and debris from the Towers during the collapses. Like most of its arguments, PM’s challenge to this evidence of demolition is extremely weak and was previously refuted by experts at AE911Truth and elsewhere.
In Popular Mechanics’ next section, they discuss the rate at which the Twin Towers were destroyed. It is quite evident that PM has again misrepresented the characteristics of the buildings’ destruction.