re: Explain what caused the towers to collspse.

Nothing perfect about it, other than it was a perfect catastrophe. It was so hot that human bodies vaporized in the collapse. The miracle was that fewer than 3K perished; it could have been closer to 30K if not for speedy evacuation of the towers.

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Dust clouds did yes.

The concrete and steel didn't spread over blocks

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Dude, you're reaching.

When you show me your Engineering license then I'll be glad to entertain your theories.

Until then, you're another dumb schmuck watching Youtube videos who is easily led.

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We still haven't got to the temperature that would cause this to fall. Been asking but noone wants to answer.

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Effect of Temperature on Steel Strength

My guess would be that the steel for that era was A-36

I’m guessing you’ve never built anything before

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AtticusOSullivanExplain what caused the towers to collspse. by AtticusOSullivanJet fuel and office furniture burning caused massive steel I beams to fail? Help me out.

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If you're looking for unexplainable events that occurred on 9/11 the Twin Towers are not the best place to look, here's a better question.

Why aren't there dozens of surveillance video cameras showing the jet barreling towards the Pentagon? On the side of the Pentagon that was struck there was likely at a minimum of 3-4 surveillance cameras yet the only vid ever released is the low resolution clip of the Pentagon being struck by something. What about all the buildings in and around the Pentagon with probably hundreds of cameras.....where is that video?

Bro. Everyone knows airplanes crash and incinerate into nothing.

Just ask all those people in Kenner back in the day when the plane crashed. No bodies, blood, wings, metal ever found.

Don't need to melt the steel beans, just hot enough to weaken them. Ever heard of tempered steel? Tempering steel strengthens it. Heating it again above a certain temperature removes the temper thereby weakening it.

Can Jet Fuel Melt Steel Beams?
"Given adequate oxygen, certainly. From here, for instance, you can get an approximate maximum flame temperature for kerosene burning in air, and a higher concentration of oxygen will increase the temperature. At 3800 F, this is about 1000 F above the melting point of steel, so melting steel with jet fuel (kerosene) is entirely possible.
Of course, "Common sense suggests that steel beams should not yield" suggests that you've been visiting 9-11 conspiracy sites, and it's important that you realize that melting beams is not remotely required to bring down a building. All you need to do is a) destroy some of the existing beams in order to increase the load on the survivors, and b) heat some of the survivors enough to reduce their strength to the point that they can no longer support their load. When some start to deform, this will throw extra load on the others, and a chain reaction of failure is certainly possible. And steel will certainly lose strength at high temperatures - typically about 50% at 1000 F, and 75% at 1100 F." LINK

How well do you expect the structural steel to continue supporting the structure when it has lost 80% of it's original strength when it is heated to 1200 degrees F? It doesn't have to "melt" to fail.
Although paper ignites at around 480 degrees Fahrenheit, it gets far hotter once it’s burning. The temperature at the center of a paper fire is 1,500 degrees Fahrenheit, give or take a couple hundred. The tips of the flames themselves are usually between 600 and 800 degrees.
Common building materials will burn at temperatures in excess of 3500 degrees when provided with adequate supplies of air and the adiabatic flame temperature of jet fuel is quoted at in excess of 4000 degrees.
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This “jet fuel won’t melt steel beams” thing never ceases to amaze me.

Is very hot metal malleable?
Would a very large jet liner crashing at very high speed cause considerable structural damage?

A false flag is more believable than “jet fuel doesn’t melt steel beams”

Steel begins to weaken at 790 degrees, loses half its strength at 1190 degrees. At 2100 degrees it glows and it’s virtually play dough.

Jet fuel burns right at approximately 1590 degrees. More than hot enough to cause steel beams to lose approximately 2/3 Of it’s tempered strength.

You add in the fact that other materials were burning in a confined space, you basically created a furnace similar to those used in steel processing..

So stfu