posted on Jun, 21 2006 @ 09:13 AM
Wrt seismic readings, there was a thread, titled 'physics prof says explosives not fire brought down WTC towers' or somesuch, now i can only find
its atsnn twin, though.
When analysing visible collapse times and propagation delays, it becomes very clear that all three collapses started with noticably similar precursor
events, all looking like swelling triangles, then a second nothing, then the full blown collapse.
Strangely, the collapse of WTC7 had a precursor event with a larger seismic footprint than the collapse itself. note that this only becomes
obvious when vertically resizing all images to the same scale, which, by default differs by a factor of ten between wtc1/2 and #7 collapses.
So, seismic charts do exist, they're just misaligned for the most part due to selective omission of propagation delays and need resizing for clear