NEVER FORGET: JET FUEL MELT STEEL BEAMS BUT NOT PASSPORT PAPER
(media.greatawakening.win)
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Steel melts at 2500F. Jet fuel burns from 800F to1500F.
Oxy-acetylene flame gets anywhere from 5600F to 6300F.
If you still believe that the fire from jet fuel brought those twin towers down to the ground, then you shouldn't be on this Q board.
This is basic common sense stuff.
We can go over it again. The adiabatic flame temperature of kerosene is 2093 C (3801 F). (In rocket engines it can reach ~3,400 C at high pressure.) The melting point of iron is 1538 C (2800 F). At 600 C, the strength of structural steel is 30% of its strength at room temperature. If you still believe you understand the circumstances, you shouldn't be on this Q board. This is basic science that you can look up.