9/11

[Fisherking]

If fire had caused the building collapse there are several things missing.

Each of the structural members had a safety factor of at least 5, meaning they could support 5 times the load placed upon them. Straight down was the path of greatest resistance.

Had it been fire which caused the failure then you would expect to see the building lean in the direction of least resistance until the effected area toppled over leaving the floors beneath substantially unaffected. Had it pancaked as NIST theorised there would have been a number of substantial jolts and left a collapsed structure about 30 stories high.

Instead we have building 1 coming down in 11 sec. and building 2 in only 9 sec. There was very little of the building left above the first two floors and those who escaped after the collapse reported seeing blue sky overhead. Essentially 900,000 tons of reenforced concrete and steel were pulverised to dust before it ever hit the ground. There were pools of molten metal and the rubble pile remained hot for weeks.

The black smoke coming from the buildings is also an indicator of the temperature of the fires inside. Black smoke is oxygen starved and would indicate fires of only about 600° to possibly 800° C, NIST acknowledges the presence of molten iron and steel but offers no explanation.
https://www.youtube.com/watch?t=1&v=OmuzyWC60eE

Just who is ignoring the physics and engineering behind it?