I watched a documentary last night on the saloman brothers building 7 which also collapsed in the vicinity of WTC on 9/11...
You can watch a short version on this,
http://911research.wtc7.net/wtc/evidence/videos/index.html#building7
or this which is only 9secs long,
http://www.youtube.com/watch?v=LD06SAf0p9A
I didn't know about this building collapsing as well, the documentary makers showed it to some experts who all said it was a controled demolition and were gobsmacked when told it was 9/11 footage.....
Other points which were brought up.....
The BBC announced 23 minutes before it actualy fell that it had collapsed,
They announced it twice once when they were told it had collapsed and once when it did collapse,
In this footage at the begining they go to a live broadcast from New York where Jane Stanley is reporting about building 7's collapse 'YET' building 7 is quite visible behind her head to the right..
http://www.youtube.com/watch?v=6mxFRigYD3s
This thread should be in 'Architecture and Engineering' not P/Math and certainly not the cess pool.....
Here a skyscraper burns for 15 hours and the building is shown the next day...
building 7 burnt for just 7 hours.....
http://www.youtube.com/watch?v=GEPjOi2dQSM&feature=related
Never before in the history of Engineering has a steel building collapsed pre-9/11 then it all happens at once....here is some info on steel buildings,and what would/wouldn't make them collapse,
http://www.youtube.com/watch?v=nnnjIzamnJo
The truth is painful that people who are supposed to look after you care more about money than human life....there is no warant for the cesspool it's about the possability of the structures collapse due to fire, and the facts state that the building's should not have collapsed from this and the hundreds of people's reports of explosions prior to collapse puts it down to an engineer to anwser...
"Steel will never become hotter than the flame/heat applied to it and melts at 2750 degrees, it would need a blast furmance or a thermite device applied to it for it to melt"
"Airplane/jetplane fuel burns at 1400 degrees" you do the math.........................