http://www.911research.com/wtc/e...north_tower_collapse.mpeg
When the north tower collapses, all floors ABOVE the impact zone explode first before anything occurs below!
http://www.911research.com/wtc/evidence/vi...r_collapse.mpeg Just keep your eyes fixed on the few floors directly beneath the impact zone and watch how nothing happens to them whilst everything above is being pulverised! The collapse of the north tower was obviously not initiated at the impact zone--nor by gravity!
Everything above the impact zone is first turned to dust and resisted by the floors below. At this point there is now even less weight above to "crush" the floors below, which have so far not budged whilst all that action has been happening above. It's only when the demolition wave reaches the impact zone that the rest of the tower follows suit in near free-fall speed. That is NOT how nature behaves! It's so blatantly obvious... even a 5 year old child should be able to work this out! I've even tried showing adults the hundreds of brief demo charge flashes observed during the collapse, but people ignorantly refuse to belive(sp) that they are seeing explosions! Nevermind squibs, WTF are those quick bright flashes if they aren't explosions!?!? You only see those type of instant flashes in controlled demolition... ,p>
My comments:
This is the strongest evidence and the most convincing analysis I have seen challenging the official explanation of the collapse of the North Tower.
If you pause the video intermittently, you can clearly see the floors above the impact zone disintegrating before any significant event at the area of impact. In addition, you can clearly see a "squib" above the impact zone early in the collapse event, eliminating the compressed air theory.