A world-renowned scientist, recipient of the National Medal of Science, America's highest honor for scientific achievement (Dr. Lynn Margulis) said:
"I suggest that those of us aware and concerned demand that the glaringly erroneous official account of 9/11 be dismissed as a fraud and a new, thorough, and impartial investigation be undertaken."The former head of the Fire Science Division of the government agency which claims that the World Trade Centers collapsed due to fire (the National Institute of Standards and Technology), who is one of the world’s leading fire science researchers and safety engineers, a Ph.D. in mechanical engineering (Dr. James Quintiere), called for an independent review of the World Trade Center Twin Tower collapse investigation. "I wish that there would be a peer review of this," he said, referring to the NIST investigation. "I think all the records that NIST has assembled should be archived. I would really like to see someone else take a look at what they've done; both structurally and from a fire point of view. ... I think the official conclusion that NIST arrived at is questionable."
Former Director for Research, Director for Aeronautical Projects, and Flight Research Program Manager for NASA's Dryden Flight Research Center, who holds masters degrees in both physics and engineering (Dwain A. Deets) says:
"The many visual images (massive structural members being hurled horizontally, huge pyroclastic clouds, etc.) leave no doubt in my mind explosives were involved [in the destruction of the World Trade Centers on 9/11].''
A prominent physicist, former U.S. professor of physics from a top university, and a former principal investigator for the U.S. Department of Energy, Division of Advanced Energy Projects (Dr. Steven E. Jones) stated that the world trade centers were brought down by controlled demolition
A U.S. physics professor who teaches at several universities (Dr. Crockett Grabbe) believes that the World Trade Centers were brought down by controlled demolition
A safety engineer and accident analyst for the Finnish National Safety Technology Authority (Dr. Heikki Kurttila) stated regarding WTC 7 that "The great speed of the collapse and the low value of the resistance factor strongly suggest controlled demolition."
A 13-year professor of metallurgical engineering at a U.S. university, with a PhD in materials engineering, a former Congressional Office of Technology Assessment Senior Staff Member (Dr. Joel S. Hirschhorn), is calling for a new investigation of 9/11
A Danish professor of chemistry (Dr. Niels Harrit) said, in a mainstream Danish newspaper, "WTC7 collapsed exactly like a house of cards. If the fires or damage in one corner had played a decisive role, the building would have fallen in that direction. You don't have to be a woodcutter to grasp this" (translated)
A former guidance systems engineer for Polaris and Trident missiles and professor emeritus, mathematics and computer science at a university concluded (Dr. Bruce R. Henry) that the Twin Towers "were brought down by planted explosives."
A mechanical engineer with 20 years experience as a Fire Protection Engineer for the U.S. Departments of Energy, Defense, and Veterans Affairs, who is a contributing Subject Matter Expert to the U.S. Department of Energy Fire Protection Engineering Functional Area Qualification Standard for Nuclear Facilities, a board member of the Northern California - Nevada Chapter of the Society of Fire Protection Engineers, currently serving as Fire Protection Engineer for the city of San Jose, California, the 10th largest city in the United States (Edward S. Munyak) believes that the World Trade Center was destroyed by controlled demolition.
The former Chief of the Strategic and Emergency Planning Branch, U.S. Department of Energy, and former Director of the Office of Engineering at the Public Service Commission in Washington, D.C., who is a mechanical engineer (Enver Masud) , does not believe the official story, and believes that there is a prima facie case for controlled demolition of the World Trade Center.
A professor of mathematics (Gary Welz) said "The official explanation that I've heard doesn't make sense because it doesn't explain why I heard and felt an explosion before the South Tower fell and why the concrete was pulverized"
A prominent engineer with 55 years experience, in charge of the design of hundreds of major building projects including high rise offices, former member of the California Seismic Safety Commission and former member of the National Institute of Sciences Building Safety Council (Marx Ayres) believes that the World Trade Centers were brought down by controlled demolition (see also this)
Two professors of structural engineering at a prestigious Swiss university (Dr. Joerg Schneider and Dr. Hugo Bachmann) said that, on 9/11, World Trade Center 7 was brought down by controlled demolition (translation here)
Charles Pegelow, structural engineer, of Houston, Texas (and see this)Dennis Kollar, structural engineer, of West Bend, Wisconsin
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