So that anyone who's interested will know from which CNN video clip I
extracted the position v. time data for the collapse of WTC North Tower,
I've posted one frame from the clip along with the Excel spreadsheet and
some explanatory material. The address of the page is
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Glenn A. Carlson, P.E.
St. Charles Community College
St. Peters, MO USA
www.stchas.edu/faculty/gcarlson/physics
PGP Fingerprint E88D 2AB8 C5A8 D231 06B9 1597 3C72 5CC2 7D87 5519
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