E-Mail from David Chandler

On another forum, I am in a discussion with one of the AE911 engineering petition signers regarding free fall implications and Richard the Gage claiming WTC 7 feel in 6.5 seconds. The petition signer has been in contact wtih Chandler and posted this e-mail he received from Chandler.

Quote:

What I know is --NIST was tracking WTC7 from Camera 3, with a viewing angle looking up at the building. This made the initial horizontal flexure ambiguous, which they intentionally misconstrued to be vertical motion. This became the basis of their artificially early starting point. It also provided the early departure from a static situation which could round out the initiation time. In fact the motion of the building transitioned from rest to freefall essentially instantly, as viewed from a camera level with the roofline. --The curve they imposed on the data is meaningless apart from being a rather bad empirical curve fit. It doesn't fit the data in phase 3, and the data in phase 1 is erroneous, as mentioned above. --I have repeatedly implored Richard Gage to quit citing the total fall time. It is irrelevant to the physics. It is the fact of a protracted period of instantaneous freefall that is dynamically relevant. During the period of freefall the building is doing no work, so the loss of support had to have been caused by other events. The fact that the freefall had sudden onset is inconsistent with buckling because some shortening would have to occur to get the geometry right to reduce the resistance to near zero. By the way, even while buckling the resistance would not actually be zero.

:boggled: