dafydd
Banned
- Joined
- Feb 14, 2008
- Messages
- 35,398
Difficult to believe as it may be, you missed the point of my post.
When buildings are demolished, they collapse. When they collapse, there is always a huge dust cloud.
I have seen one of these collapses myself. There was a 37-story building near the demolition site, and when the 19-story building was demolished, it produced a dust clould that completely obscured the larger building.
I never took high school physics, but in first grade I learned that a stack of wooden blocks never fell into its own footprint. The horizontal force here is essentially the same, except that the elasticity of the (non-dustified) steel members caused a somewhat different re-distribution of energy.
When I was a child some friends and I pushed over a rickety brick wall,it was about 12 feet long and 8 feet high.We were caught by the owner of said wall because he saw the large dust cloud and came to investigate.