slash11: I have looked up your videos but still they cannot convince me and why ?
Just overlook the damage that is done by the fire and the debris.
The steel columns must be destroyed so that the building can go down in this manner, perfect symmetrically and it was in like i think 6-7 seconds, i must look it up again.
Notice that never in history steel structure buildings were destroyed by fire and why ?
Because fire cannot melt steel. On 9/11 there have been 3 !
Overlook the damage?
Whut? You're ignoring one of the contributing causes because it doesn't fit your preconceptions? O_o
That pretty much sums up you, and all "Truthers" out there. Ignore what doesn't fit, and leave, twist, and add what can support you.
NO! NO! NO! NO! NO! NO! NO!
How many
MORE times do we have to tell you that the steel does NOT have to be destroyed?
At 650 degrees C it has ~50% the structural strength of steel at room temperature.
At ~1,000 degrees C, (well within the range a NORMAL fire reaches) it has less than 10% the structural strength. And with the fire-proofing knocked off parts - to all in a section of the building - due to aircraft strike, or building debris knocking it off, enough steel will be exposed to the heat. Destroyed. HAHAHHAHAHAHHAHAHAAAA! :facepalm:
It'll sag, and the more weight on it, the more it'll sag. It'll not be able to support the weight of the building, and cause a collapse, pulling the attached steel beams and concrete in on it as it does so, which is seen time and again in ALL three building collapses!
Of course, fire wasn't the sole contributor to the failure, here, and everyone knows it! A plane, another plane, and rubble from the South Tower striking WTC7 helped those failures, too.
But you'll note, or should note, it took hours for WTC1+2 to fail, and collapse - it was
not an immediate failure.
It also took WTC7 7 or 8 hours to fail and collapse, again, not an immediate failure, by any stretch of "Truthers" claims.
Please, go away until you can provide something a little less hilarious and more realistic.