South Tower Coming Down Video segment of the collapse of the South Tower, taken apart
frame-by-frame, rectified so the building remains motionless, and reassembled into a movie, with commentary.
Race with Gravity
Video analysis, using Physics Tool Kit software, of the speed of the demolition wave
moving down a face of the North Tower in comparison with the rate of freefall
through air of heavy material nearby.
(Analysis based on the BBC footage which can be seen in full here.)
High Speed Ejection from WTC1 toward WTC7 Video analysis, using Physics Tool Kit software, of the horizontal
speed
of a plume of ejecta thrown from the North Tower toward WTC7, based on
Rick Siegel's video
shot from
across the Hudson River. Result: ~71 mph.
South Tower: Explosive Reality
Close-up video analysis, using Physics Tool Kit software, of the
initial velocity of two plumes of
dusty material ejected
immediately
after the initiation of the collapse of the
South Tower. Result: both over 100 mph.
The Terrorism Scam
This You-Tube video is a commentary piece about
the
virtual non-existence of a US terrorism threat.
Freefall Acceleration of WTC7
Video analysis, using Physics Tool Kit software, of the uniformly
accelerated
collapse of Building 7 of the World Trade Center
from a distant vantage
point to the NW. (This replaces two earlier
videos of a similar nature.)
This revision is based on a higher resolution
copy of the
video. The inescapable
conclusion that the building underwent demolition is discussed.