Muslims Suspend Physics

Using jet fuel to melt steel is an amazing discovery, really. It is also amazing that until now, no one had been able to get it to work,
and that proves the terrorists were not stupid people. Ironworkers fool with acetylene torches, bottled oxygen, electric arcs from generators, 
electric furnaces, and other elaborate tricks, but what did these brilliant terrorists use? Jet fuel, costing maybe 80 cents a gallon on the open market.

Let us consider: One plane full of jet fuel hit the north tower at 8:45 a.m., and the fuel fire burned for a while with bright flames and black smoke. 
We can see pictures of white smoke and flames shooting from the windows.

Then by 9:03 a.m. (which time was marked by the second plane's collision with the south tower), the flame was mostly gone and only black smoke continued to pour from the building. To my simple mind, that would indicate that the first fire had died down, but something was still burning inefficiently,
leaving soot (carbon) in the smoke. A fire with sooty smoke is either low temperature or starved for oxygen -- or both. (http://public-action.com/911/jmcm/fires1-2.html)

But by 10:29 a.m., the fire in north tower had accomplished the feat that I find so amazing: It melted the steel supports in the building, 
causing a chain reaction within the structure that brought the building to the ground.

And with less fuel to feed the fire, the south tower collapsed only 47 minutes after the plane collision, again with complete destruction. 
This is only half the time it took to destroy the north tower.