Post by rex. on Sept 11, 2007 21:14:55 GMT -5
Its 9/11. maybe only for a few more hours, but I think that it'd be a nice idea to just pay thoughts to the victims of the terrible tradgedy...
Here I go:
sept. 11, 2001:
i was sitting in my tech. class back in middle school. its was about 5th or 6th hour. The PA came on and my principal spoke to the school. He said 'Teachers, would you please turn on your Televisions to the news channel at this time...' and my whole class, along with everyone else in the world looked on at the screen as we watched something unbeleivable and heartbreaking. A friend of mine Began to panic, saying his Grandpa was there. Luckily His grandfather managed to evacuated the building before it collaped, but the other 25 thousand or so people who were trapped above flames didnt make it.
I watched a Video today on the science of WHY the towers collaped. The towers were built with a core of steel beams (where the stairs and elevators were located), and an outer steel beam wall. The truces that held the core and ouside together were bolted into place and then sprayed with fire-protectant foam. the walls around the core were made of dry-wall rather than concrete (maybe not such a wise choice)...but these buildings were MADE to withstand the impact of a plane!
When the planes struck the north and south towers, the splayed the outer beams which definatly unbalanced the towers to some degree, but not enough to knock it over. At impact, all the debree that hit the truces knocked off the Fire-proofing, making the steal voulnerable in the scorching hot explosion.
the bolts eventually weakened in the proceeding blaze and the truces sagged and fell out of place...eventually causeing a floor-by floor collapes
__________
|--------------| <--veiw from above of the structure
|-----__------|
|----|\--/|----|
|----|__ |----|
|--------------|
May all those people who died in the terrible attack be remembered.
-Kash
Here I go:
sept. 11, 2001:
i was sitting in my tech. class back in middle school. its was about 5th or 6th hour. The PA came on and my principal spoke to the school. He said 'Teachers, would you please turn on your Televisions to the news channel at this time...' and my whole class, along with everyone else in the world looked on at the screen as we watched something unbeleivable and heartbreaking. A friend of mine Began to panic, saying his Grandpa was there. Luckily His grandfather managed to evacuated the building before it collaped, but the other 25 thousand or so people who were trapped above flames didnt make it.
I watched a Video today on the science of WHY the towers collaped. The towers were built with a core of steel beams (where the stairs and elevators were located), and an outer steel beam wall. The truces that held the core and ouside together were bolted into place and then sprayed with fire-protectant foam. the walls around the core were made of dry-wall rather than concrete (maybe not such a wise choice)...but these buildings were MADE to withstand the impact of a plane!
When the planes struck the north and south towers, the splayed the outer beams which definatly unbalanced the towers to some degree, but not enough to knock it over. At impact, all the debree that hit the truces knocked off the Fire-proofing, making the steal voulnerable in the scorching hot explosion.
the bolts eventually weakened in the proceeding blaze and the truces sagged and fell out of place...eventually causeing a floor-by floor collapes
__________
|--------------| <--veiw from above of the structure
|-----__------|
|----|\--/|----|
|----|__ |----|
|--------------|
May all those people who died in the terrible attack be remembered.
-Kash