EvC Forum: Was the destruction of the twin towers scientifically possible on 9/11

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lost-apathy
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From: Scottsdale, Az, USA
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Originated: 08-18-2007 7:43 PM
Total Participants: 35
Total Posts: 151

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Topic: Was the destruction of the twin towers scientifically possible on 9/11

kjsimons

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Posts: 533

From: Orlando,FL

Registered: 06-17-2003

Member Rating: 3

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Message 148 of 151 (432354)
05-29-2008 9:00 AM

Reply to: Message 147 by VirtuousGuile
05-29-2008 6:51 AM

Re: Please offer me an explanation

VG writes:

Now the question that has bugged me is why didn't the subsequent central steel columns on the lower floors, which weren't damaged give way with out seemingly any resistance, or why didn't they seemingly affect the fall of the structure.

The answer is that the floors in the building weren't designed (and no building is) to withstand the dynamic load of the top quarter of the building falling on it. The equation F = ma shows that the force load goes up as acceleration increases (ie the top of the building falling due to gravity ~9.8m/s/s). No other explaination should be needed.

Edited by kjsimons, : Mixed up my physics equations.