Actually what people don’t really get is that the steel never had to melt. It only had to reach the softening point which is a lot lower temperature than the melting point. The truth is that jet fuel will not get you to the melting point without some work. However it won’t have any trouble getting to the softening point. Once you hit that the structural members are more like silly putty than I beams.
I once had this discussion with a wingnut who believed it was an inside job. The fact that I have a PhD in steelmaking didn’t seem to phase him at all.
The fact that you have a PhD in steelmaking proves the point!! What’s the frequency, Kenneth??
/wingnut
iBeams - something else Apple will trademark. lol
According to them Bush was the most incompetent President ever. And yet he supposedly planned and orchestrated the most complicated and largest controlled demolition in history.
IIRC, the WTC towers employed an innovative construction technique. I do not recall the details, but it relied on steel cables in tension, something like a suspension bridge. Once the heat caused the cables to go into yeild (get soft), the whole thing collapsed like a house of cards. It had a considerable amount of redundancy, but more support was lost on the side of building towards the entrance wound, unbalancing the contraption and reducing the margin.
What you told him undoubtedly went against the grain.
≤}B^)