They(building 7, the 2 towers) seem to go perfectly straight down with fires. Fire is much cheaper and if they were controlled, they wouldn't be very dangerous. It would save time in meticulous planning etc...
2007-02-01 06:45:48 · 5 answers · asked by Ilooklikemyavatar..exactly 3 in Science & Mathematics ➔ Engineering
I don't believe the other posters get your question. You are asking if the buildings can be dropped so well, why use demolition crews. Well, we do use controlled explosion to bring down tall buildings, but that is highly specialzed and expensive. Only for very large buildings is it more cost effective to explode it, then to take it apart. Smaller buildings are just easier to take apart. Either way, you still need a crew to clean up afterward. Also, burning would produce horrible levels of pollution.
2007-02-01 22:56:00 · answer #1 · answered by BP 2 · 0⤊ 0⤋
this is wrong thinking there is no engineer in the world that thought that the building would drop~sticking a twenty million dollar airplane full of $8.00 dollar a gallon flite fuel is no the way to bring a building down~the massive expansion of the fuel alone could have been a whole new ball game had the pilots dove at the bases of the towers instead of the tops
2007-02-01 07:12:04 · answer #2 · answered by bev 5 · 0⤊ 0⤋
The Two Towers weren't brought down by fire. The structural integrity of the building, particularly the upper floors was compromised by the collissions.
The top of the buildings started collapsing because the load-bearing columns and beams were damaged. Once that happened, each subsequent floor was basically crushed by the weight of the floors above falling on it.
2007-02-01 06:57:56 · answer #3 · answered by Anthony Stark 5 · 1⤊ 0⤋
Well if all the buildings were designed the same way. With only outer columns, braced by concrete floors sitting on steel joist I guess you could. Then again, I don't know how much fuel a transcontinental jet has on board. It still might be cheaper to set charges than to deliver and burn enough jet fuel to heat the joist to a point where they fail.
Don't wear that tin foil hat outside the house.
2007-02-01 09:53:56 · answer #4 · answered by Roadkill 6 · 0⤊ 0⤋
There was still tons of concrete and metal there that had to be removed. That stuff doesn't burn. Also it was an effort to reclaim remains of the victims where possible.
2007-02-01 06:58:14 · answer #5 · answered by Gene 7 · 0⤊ 0⤋