if jet fuel burns at 1120F and steel melts at 2800F,then how did WTC COME DOWN?

Question

I mean really,the commission report doesnt do justice to this simple fact

Answer 1

The temperature you refer to is for "pure" steel, not steel alloy. Most steel used in construction over the past half century has actually been steel alloy containing a mixture of other materials, such as aluminum. This alloy has a melting temperature much less than pure steel, which is 1370 degrees Celsius or 2500 degrees Fahrenheit!

Good question, though! I'm glad I was able to answer this for you!

Answer 2

WTC 7, which was not struck by a plane, was obviously a controlled demolition, and the 911 commission report doesn't offer any other explanation or even address WTC 7 at all. Is it possible that WTC 7 was destroyed in a controlled demolition, but WTC 1 and 2 weren't? That seems unlikely.

There are a lot of buildings in between the twin towers and WTC 7 that didn't fall down. What did WTC 1, 2, and 7 have in common that those other buildings don't? They were all leased or owned by Larry Silverstein, who made a huge profit from his insurance coverage.

The bottom line is that if a building at or near the World Trade Center site was owned by Larry Silverstein then it fell down that day, whether it was hit by an airplane or not.

Answer 3

OK, so jet fuel burns at 1,120 degrees Fahrenheit and steel melts at 2,800 degrees Fahrenheit. Questions for you, Mr. Armchair Engineer: (1) How much stress can steel struts withstand before shearing or breaking? Can they withstand the force of a commercial jetliner traveling at better than 130 knots? (2) What other combustible materials and accelerants were in that building? What are their burning points? Based on ALL factors, what was the internal temperature in the towers after the planes hit and for how long was that temperature sustained? (3) How many of those steel struts could have been compromised without the structure above coming down? And how many of them actually WERE compromised?

You really don't do justice to simple common sense. It's not like someone put a bunch of barrels of jet fuel next to those steel struts and lit 'em up. If that were the case, you'd have a feasible argument. But just like your comrades in the mainstream liberal media you editorialize all the information, take out one piece of information that you can spin to support your agenda, and then you pass it off as a vast right-wing conspiracy. THE TRUTH is the totality of the circumstances, moron.

Answer 4

As I am sure you have read in many of the supporting articles, Steel does not need to melt to drop a building. Steel only needs to weaken and allow the structure weight above it to collapse.

As a firefighter, we where taught it is much better to fight a wooden structure then a steel one. Steel structure collapse a lot faster then wood.

With that in mind. The aircraft slammed into the WTC's and dumped all of it's fuel inside. Now, that fuel is burning at (Using your numbers) 1120F. I wonder if you thought out the FACT that the fuel from the plane is now a starting source for other fuels to ignite. Natural Gas lines in the building, Wood, cloth, desks, doors, carpet. YOU name it. That structure could have easily achieved temperatures well above 4000F!

I know that the facts and scientific facts bother the conspiracy theorist. My comments, get a LIFE and stop blaming others for things that are so obvious. Seems like you are the kind who fall to those theorist at work too.. (Who is the boss doing?, Who is doing whom? Which boss is steeling from the company? Which boss is just not letting you get a promotion?) Get the picture?

Answer 5

Since you are not smart enough to figure it out, here we go.

Fire doesn't actually melt the steel, it weakens it, and under the tremendous weight of the WTC, you remember all the upper floors, there is a thing, us people with at least a high school diploma call it gravity. Well as the steel is weakened in the FIRE, GRAVITY is acting on the hundred of tons of concrete etc above. Finally the strain on the steel causes it to fracture and fail.

If this is still too much, email me, I could draw you a picture or two.

Answer 6

Because if you heat one end of a steel re-enforcing beam 300 degrees hotter than the other end (or heat the middle 300 degrees above either end) it BENDS and WARPS.

Also, if you heat a steel beam to 1000 degrees Farenheit, you've already lost a lot of strength, and the steel expands beyond what the expansion joints allow for.

Once one floor failed, the weight of ALL the stories above it came down on top of the next floor - dropping 8 to 10 feet to do so, and the the floors were not designed to withstand that amount of pressure from above.

They "pancaked."

Answer 7

Above the point of impact there were many tons of weight. The heat of the burning fuel didn't have to melt the steel, just slightly soften it. Wooden beams in a burning building will hold up longer that those of steel. The steel softens very quickly.

Answer 8

What do you think happened? Can you really believe thousands of pounds of explosives were somehow hidden throughout the building without anyone noticing? And who did the hiding? It would have taken hundreds of people! I think this scenrio is so unbelievable that only a moron thinks it is more likely.

Answer 9

The steel didn't melt. It was however, weakened enough to fail.
You don't have to chop all the way through a tree to make it fall. Same principal.

Answer 10

WTC7 wasn't hit by an airliner, but it came down just like WTC1 & 2.

Only a fool couldn't put the facts together.