on 14/9/08 2:37 pm, Stephen A. Lawrence at [EMAIL PROTECTED] wrote: > > > Jones Beene wrote: >> >> ----- Original Message ---- >> From: Stephen A. Lawrence < >> >> >>> Whether any of my comments apply to WTC7 is not clear, as its collapse >> looked rather different on video. >> >> That is becasue it was completely different in the details, and your >> understanding of the first two as being "freefall" is incorrect, but >> understandable. They were not freefall during any significant portiion >> of their fall AFAIK. Close but no cigar. >> >> Videos of the Two Towers (1 & 2) clearly show large chunks of debris >> falling separately and unconnected from the main structure. This debris >> - which includes one 10 ton chunk of the exterior skin, is shown to >> descend at an acceleration which noticeably faster than that of the main >> portion of the collapse (perhaps 20% faster). > > Whoa -- good point! I recall seeing bits of junk arcing away from the > towers in the videos and descending faster than the collapse wave, but I > never made the connection -- it shows that they were not moving at "full > free-fall" speed, no matter what was claimed about them.
I find it hard to locate the front of the collapse wave on the video given all the dust and debris. harry
