What did and did not cause collapse of World Trade Center twin towers in New York?

Keyphrases

• New York 100%
• Pulverization 100%
• World Trade Center 100%
• Twin Towers 100%
• Free Fall 100%
• Progressive Collapse 100%
• Dust 50%
• Comminution 50%
• Ejection 50%
• Kinetic Energy 50%
• Video Record 50%
• Differential Equations 50%
• Small Hole 50%
• Motion History 50%
• Dust Cloud 50%
• Gravitational Collapse 50%
• Gravitational Energy 50%
• Seismic Record 50%
• Speed of Sound 50%
• Uncertain Value 50%
• Dust Particles 50%
• Out of Range 50%
• Controlled Demolition 50%
• Logical Interpretation 50%
• Airborne Dust 50%

Earth and Planetary Sciences

• New York 100%
• World Trade Center 100%
• Kinetic Energy 50%
• Gravitational Collapse 50%
• Comminution 50%

Engineering

• Tower 100%
• Free Fall 66%
• Size Range 33%
• Dust Cloud 33%
• Gravitational Energy 33%