Can jet fuel melt steel beams?

>>>/r9k/

>>1552158
Nope

>>1552158
That's the co-pilot's seat.

No, but the temperatures which jet fuel burns at is such that steel loses its rigidity and becomes more malleable than at room temperature. The same is true of most plastics; although most plastics doesn't melt at ~100C, they becomes very malleable which makes them far easier to break. Therefore, as the load-bearing steel beams lost structural rigidity due to heat, although they did not melt, the weight on them was enough to force them to break. Interestingly enough, since the walls offered no real support, they were able to stand ~11 minutes after the internal structure of the building collapsed. This caused the infamous scene where it looks as if the entire building is collapsing rather than just the walls. I believe this is also why the collapse produced so much dust relative to a controlled demolition. The internal structure collapsed before the walls, meaning all of the dust produced might have settled, but would have then been thrown up into the air when the walls fell. Contrast with a controlled demoliton where the building falls at all once, so there's less of a chance for dust to be thrown outwards.