This is the final report of the National Institute of Standards and Technology (NIST) investigation of the collapse of the World Trade Center (WTC) towers, conducted under the National Construction Safety Team Act.
At 5:20 in the afternoon on 9/11, Building 7 of the World Trade Center collapsed, even though it had not been struck by a plane and had fires on only a few floors. The reason for its collapse was considered a mystery. In August 2008, NIST (the National Institute of Standards and Technology) issued its report on WTC 7, declaring that "the reason for the collapse of World Trade Center 7 is no longer a mystery" and that “science is really behind what we have said.” Showing that neither of these claims is true, David Ray Griffin demonstrates that NIST is guilty of the most serious types of scientific fraud: fabricating, falsifying, and ignoring evidence. He also shows that NIST’s report left intact the central mystery: How could a building damaged by fire—not explosives—have come down in free fall?
“9/11 conspiracy theorists beware: Popular Mechanics has popped your paranoid bubble world, using pointed facts and razor-sharp analysis.” —Austin Bay, national security columnist (Creators Syndicate) and coauthor of From Shield to Storm Decades after the World Trade Center disaster, rampant speculation abounds on what actually happened. Wild talk flourishes on the Internet, TV, and radio. Was the Pentagon really struck by a missile? Was the untimely death of Barry Jennings, who witnessed the collapse of Tower 7 and thought he heard “explosions,” actually an assassination? Not everyone is convinced the truth is out there. Once again, in this updated edition of the critically acclaimed Debunking 9/11 Myths, Popular Mechanics counters the conspiracy theorists with a dose of hard, cold facts. The magazine consulted more than 300 experts in fields like air traffic control, aviation, civil engineering, firefighting, and metallurgy, and then rigorously, meticulously, and scientifically analyzed the twenty-five most persistent 9/11 conspiracy theories. Each one was conclusively refuted with facts, not politics and rumors, including five new myths involving the collapse of 7 World Trade Center and four longstanding conjectures now considered in the context of new research. “A reliable and rational answer to the many fanciful conspiracy theories about 9/11 . . . What happened on 9/11 has been well established by the 9/11 Commission. What did not happen has now been clearly explained by Popular Mechanics.” —Richard A. Clarke, #1 New York Times-bestselling author of Against All Enemies “Do you have a friend who emails you the most recent documentary ‘proving’ that a missile impacted the Pentagon or that timed explosions brought down WTC-7? Buy him a copy of this book. He’ll thank you later.” —The Weekly Standard
High-Rise Security and Fire Life Safety servers as an essential took for building architects, building owners and property managers, security and fire safety directors, security consultants, and contract security firms. * Provides the reader with complete coverage of high-rise security and safety issues * Includes comprehensive sample documentation, diagrams, photographs to aid in developing security and fire life safety programs * Serves as an essential tool for building owners and managers, security and fire safety directors, security consultants and contract security firms.
Report of a team of civil, structural, and fire protection engineers, deployed by the Federal Emergency Management Agency (FEMA) and the Structural Engineering Institute of the American Society of Civil Engineers (SEI/ASCE), in association with New York City and several other Federal agencies and professional organizations, to study the performance of buildings at the WTC site following the attack of September 11, 2001.
This report presents findings of a workshop featuring representatives of Internet Service Providers and others with access to data and insights about how the Internet performed on and immediately after the September 11 attacks. People who design and operate networks were asked to share data and their own preliminary analyses among participants in a closed workshop. They and networking researchers evaluated these inputs to synthesize lessons learned and derive suggestions for improvements in technology, procedures, and, as appropriate, policy.
1. General collapse information 2. Terms of construction and building design 3. Building construction: firefighting problems and structural hazards 4. Masonry wall collapse 5. Collapse dangers of parapet walls 6. Wood floor collapse 7. Sloping peak roof collapse 8. Timber truss roof collapse 9. Flat roof collapse 10. Lightweight steel roof and floor collapse 11. Lightweight wood truss collapse 12. Ceiling collapse 13. Stairway collapse 14. Fire escape dangers 15. Wood-frame building collapse 16. Collapse hazards of buildings under construction 17. Collapse caused by master stream operations 18. Search-and-rescue at a building collapse 19. Safety precautions prior to collapse 20. Why the World Trade Center Towers collapsed 21. High-rise building collapse 22. Post-fire analysis 23. Early floor collapse EPILOGUE: Are architects, engineers, and code-writing officials friends of the firefighters?