North Tower Exploding...

[gyroscope]

16. For every action...an equal and opposite reaction

You shouldn't notice much of a deceleration once the collapse gets underway because the difference in mass between the falling portion and subsequent floors is quite significant.

that might be true if the building was made out of balsa wood and toothpicks. then maybe fire could have turned it into a pile of ashes within a matter of seconds. but 90 floors and 47 core columns made of the strongest structural steel known to man...is going to provide quite a massive amount of resistance to the alleged pile driver or falling upper block which supposedly consisted of the 10 or 20 floors above the impact zone.


Physics 101: for every action, there is an equal and opposite reaction.

hence the upper block isn't going to destroy the much more massive lower block, without first destroying itself, long before it can reach the ground. so the official explanation, is beyond ludicrous.