9/11/01
- Thread starter MECH-lift
- Start date
...a same building in Australia burned for weeks...open your eyes union brothers!Jet fuel burns at 800° to 1500°friend, not hot enough to melt steel (2750°friend). However, experts agree that for the towers to collapse, their steel frames didn't need to melt, they just had to lose some of their structural strength—and that required exposure to much less heat. "I have never seen melted steel in a building fire," says retired New York deputy fire chief Vincent Dunn, author of The Collapse Of Burning Buildings: A Guide To Fireground Safety. "But I've seen a lot of twisted, warped, bent and sagging steel. What happens is that the steel tries to expand at both ends, but when it can no longer expand, it sags and the surrounding concrete cracks."
"Steel loses about 50 percent of its strength at 1100°friend," notes senior engineer Farid Alfawak-hiri of the American Institute of Steel Construction. "And at 1800° it is probably at less than 10 percent." NIST also believes that a great deal of the spray-on fireproofing insulation was likely knocked off the steel beams that were in the path of the crashing jets, leaving the metal more vulnerable to the heat.
Debunking the 9/11 Myths: Special Report - The World Trade Center
"Steel loses about 50 percent of its strength at 1100°friend," notes senior engineer Farid Alfawak-hiri of the American Institute of Steel Construction. "And at 1800° it is probably at less than 10 percent." NIST also believes that a great deal of the spray-on fireproofing insulation was likely knocked off the steel beams that were in the path of the crashing jets, leaving the metal more vulnerable to the heat.
Debunking the 9/11 Myths: Special Report - The World Trade Center
After 7 hours of uncontrolled fires, a steel girder on Floor 13 lost its connection to one of the 81 columns supporting the building. Floor 13 collapsed, beginning a cascade of floor failures to Floor 5. Column 79, no longer supported by a girder, buckled, triggering a rapid succession of structural failures that moved from east to west. All 23 central columns, followed by the exterior columns, failed in what's known as a "progressive collapse"--that is, local damage that spreads from one structural element to another, eventually resulting in the collapse of the entire structure.
World Trade Center 7 Report Puts 9/11 Conspiracy Theory to Rest
World Trade Center 7 Report Puts 9/11 Conspiracy Theory to Rest
1BROWNWRENCH
Amatuer Malthusian
Unexpected was not expected.
Avoidable.... or unavoidable ?
rod
Retired 22 years
Did the driver get away ok? Did any UPS'er get killed? When I've been in Manhattan there seemed to be 5 or 6 UPS trucks on each block.
Covemastah
Hoopah drives the boat Chief !!
Your out of your Fn mind !!
Elmo.goes.to.prom
Well-Known Member
Was changing the silo unloaders over to run backwards.
A guy who was hanging some gutters leaned into the silo to tell us what he heard on the radio about the twin towers.
A guy who was hanging some gutters leaned into the silo to tell us what he heard on the radio about the twin towers.
Covemastah
Hoopah drives the boat Chief !!
I was at a stop delivering , saw live on tv
The store owner in his mid 70’s was in Airborne and jumped in Normandy was freaking out , said he’d go kill the bastards who did this , his son had to calm him down ,,, awful day
The store owner in his mid 70’s was in Airborne and jumped in Normandy was freaking out , said he’d go kill the bastards who did this , his son had to calm him down ,,, awful day
1BROWNWRENCH
Amatuer Malthusian
quad decade guy
Well-Known Member
It happened on my way to UPS as a pkg driver. I may have ridden my bicycle that day, thus not hearing the news. Then the cascade of non-stop news throughout the day, weeks, months, years.
When I returned to the building that evening, there was an friend-16 circling downtown at a very low level. You could see the missiles all over it. The next day four single engine contrails(fighters) were in combat air patrol high over our city. We have one of the busiest airports in the world and seeing nothing or hearing anything in the sky was weird(except military).
When I returned to the building that evening, there was an friend-16 circling downtown at a very low level. You could see the missiles all over it. The next day four single engine contrails(fighters) were in combat air patrol high over our city. We have one of the busiest airports in the world and seeing nothing or hearing anything in the sky was weird(except military).
badpal
Well-Known Member
Remember getting in that night and the next morning hearing the crazy rumors that over a 100 UPSers were lost. Then i believe in the end it was none. Which if true was really a miracle. Remember too about trying to buy outside fuel that evening, people really thought the end of the world was coming.
Richard Harrow
Deplorable.
watdaflock?
Well-Known Member
Lost a close friend that day.
bleedinbrown58
That’s Craptacular
Yep. I remember watching the news after the first plane hit....and then went outside to get the newspaper on the front lawn and thought...how did a plane not see the Towers, it was such a clear blue sky...not a cloud in it. I lived less than 40 miles from Manhattan at the time out on Long Island.
bleedinbrown58
That’s Craptacular
I lost my cousin...he worked on the 107th floor of the North Tower.
Covemastah
Hoopah drives the boat Chief !!
Sorry for your tragic loss
Wontmake9.5
My job is fun
I was in 8th grade. Teacher turned the tv on and we watched the news all day. Some parents came got their kids out of school. My mom didn’t like me so I stayed.
542thruNthru
Well-Known Member
Smart woman
Similar threads
