BadBoy
Graduate Poster
- Joined
- Jul 24, 2009
- Messages
- 1,512
I purchased the book and read it. It is a very good book and several of the case studies are quite interesting. However, they do not get into detail about the WTC. They just use the NIST line of fire induced collapse. They wouldn't have known when they printed the book that there was no deceleration of the upper section of the building or that the resistance was only 0.3g at any point and what the ramifications of these things were.
deceleration of the upper section of the building
Do you mean deceleration as negative change in speed (ignoring changes in direction), I mean do you mean the collapse slowed down?
I thought what happened was that the collapse didnt accelerate at the same rate it would have if it just dropped in thin air. That it did accelerate and that the speed of collapse never decreased. The speed of collapse was always increasing was it not, just not at the same rate of increase as free fall?