OK, how long did the collapse take and how long would a free fall from the top of the towers last? Lets see your numbers and your source.
I'll look for the hard numbers, but they're also difficult to come by...the final portion of the collapses is obscured by the dust cloud, so you can't actually see when the last bit of the building hits ground zero. What I referred to earlier is that there is debris falling below the collapse zone, and falling faster than the collapse zone. That alone refutes the 'at free fall' claim, or else the debris is falling faster than free fall.
Btodd
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