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Momentum Transfer Analysis of the Collapse of the Upper Storeys of WTC 1
Here are some facts for the people new to physics and the world of mechanical engineering. The following is and excerpt. You can follow the whole thing at this link.
http://www.journalof911studies.com/articles/Journal_5_PTransferRoss.pdf
Author:
The author of this work, Gordon Ross, was born in Dundee, Scotland. He holds degrees in
both Mechanical and Manufacturing Engineering, graduating from Liverpool John
Moores University, in 1984.
Energy Summary:
The energy balance can be summarized as
Energy available;
Kinetic energy 2105MJ
Potential energy Additional downward movement 95MJ
Compression of impacting section 32MJ
Compression of impacted section 24MJ
Total Energy available 2256MJ
Energy required;
Momentum losses 1389MJ
Plastic strain energy in lower impacted story 244MJ
Plastic strain energy in upper impacted story 215MJ
Elastic strain energy in lower stories 64MJ
Elastic strain energy in upper stories 126MJ
Pulverization of concrete on impacting floor 304MJ
Pulverization of concrete on impacted floor 304MJ
Total Energy required 2646MJ
Minimum Energy Deficit -390MJ
Conclusion:
The energy balance of the collapse moves into deficit during the plastic shortening phase of the first impacted columns showing that there would be insufficient energy available from the released potential energy of the upper section to satisfy all of the energy demands of the collision. The analysis shows that despite the assumptions made in favor of collapse continuation, vertical movement of the falling section would be arrested prior to completion of the 3% shortening phase of the impacted columns, and within 0.02 seconds after impact.
A collapse driven only by gravity would not continue to progress beyond that point.
LF: Former German Minister Says Building 7 Used To Run 9/11 Attack Guide the planes in, then destroy the crime scene
Former Helmut Schmidt cabinet member, 25-year German Parliamentarian and global intelligence expert Andreas Von Bülow says that ..."the 9/11 attack was run by the highest levels of the US intelligence apparatus using WTC Building 7 as a command bunker which was later demolished in order to destroy the crime scene."
Former German Minister Says... "Building 7 Used To Run 9/11 Attack Guide the planes in, then destroy the crime scene"
Building #7 held offices of the CIA.......
MARVIN BUSH, BUILDING 7 AND FORBIDDEN QUESTIONS Hidden History
The German Minister says he believes the WTC Buildings were rigged with explosives while Marvin Bush was head of security for the airlines and the World Trade Center Buildings
WTC1 went from the top photo to the bottom photo.
Many Americans much of who are prominent physicists, scientists, architects believe likely after an hour was taken to determine where to start the collapse sequence of explosives.
Here are some facts for the people new to physics and the world of mechanical engineering. The following is and excerpt. You can follow the whole thing at this link.
http://www.journalof911studies.com/articles/Journal_5_PTransferRoss.pdf
Author:
The author of this work, Gordon Ross, was born in Dundee, Scotland. He holds degrees in
both Mechanical and Manufacturing Engineering, graduating from Liverpool John
Moores University, in 1984.
Energy Summary:
The energy balance can be summarized as
Energy available;
Kinetic energy 2105MJ
Potential energy Additional downward movement 95MJ
Compression of impacting section 32MJ
Compression of impacted section 24MJ
Total Energy available 2256MJ
Energy required;
Momentum losses 1389MJ
Plastic strain energy in lower impacted story 244MJ
Plastic strain energy in upper impacted story 215MJ
Elastic strain energy in lower stories 64MJ
Elastic strain energy in upper stories 126MJ
Pulverization of concrete on impacting floor 304MJ
Pulverization of concrete on impacted floor 304MJ
Total Energy required 2646MJ
Minimum Energy Deficit -390MJ
Conclusion:
The energy balance of the collapse moves into deficit during the plastic shortening phase of the first impacted columns showing that there would be insufficient energy available from the released potential energy of the upper section to satisfy all of the energy demands of the collision. The analysis shows that despite the assumptions made in favor of collapse continuation, vertical movement of the falling section would be arrested prior to completion of the 3% shortening phase of the impacted columns, and within 0.02 seconds after impact.
A collapse driven only by gravity would not continue to progress beyond that point.
LF: Former German Minister Says Building 7 Used To Run 9/11 Attack Guide the planes in, then destroy the crime scene
Former Helmut Schmidt cabinet member, 25-year German Parliamentarian and global intelligence expert Andreas Von Bülow says that ..."the 9/11 attack was run by the highest levels of the US intelligence apparatus using WTC Building 7 as a command bunker which was later demolished in order to destroy the crime scene."
Former German Minister Says... "Building 7 Used To Run 9/11 Attack Guide the planes in, then destroy the crime scene"
Building #7 held offices of the CIA.......
MARVIN BUSH, BUILDING 7 AND FORBIDDEN QUESTIONS Hidden History
The German Minister says he believes the WTC Buildings were rigged with explosives while Marvin Bush was head of security for the airlines and the World Trade Center Buildings
WTC1 went from the top photo to the bottom photo.
Many Americans much of who are prominent physicists, scientists, architects believe likely after an hour was taken to determine where to start the collapse sequence of explosives.
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