19-08-2013, 10:03 AM
Tony Szamboti Wrote:Additionally, the vertical acceleration through the first story in the North Tower was 5.1 m/s^2. That is far too fast for fire weakened columns.Not necessarily too fast for incendiary weakened columns, particularly not in the case of steel melted like the pieces documented in FEMA 403 Appendix C or heated to the point that they can be cleanly bent into a horseshoe like so:
And even more so not if some of the core columns had previously been compromised by blasting them out at the base, which also explains the various reports of explosions around ground level shortly before the buildings were brought down. That's long been the gist of how I've long figured he happened, explosives near the foundations to weaken the towers, incendiaries near the impact points to initiate the collapses, and then more explosives throughout the buildings to insure their destruction progressed all the way to the ground.
Albert Doyle Wrote:I said you can't reconcile your claims that the progressive explosions Chandler claims were muffled by the roar while also showing videos of people who said they heard them clearly.What can be heard clearly at some locations can be muffled at other locations, acoustics are tricky like that. Furthermore, what will wind up muffled on recordings made even from the same location can vary greatly depending on the capabilities and settings of the equipment used. Even using one microphone to record at two different sampling rates and/or compressed with two different methods can result in particular noises being describable in one recording but not the other, so what few recordings are available of those roars of the buildings coming down hardly do anything to impeach the witness reports of sounds consistent with explosives during those events. In more general terms: absence of evidence is not necessarily evidence of absence.