Ahhh grahod I wondered when you would show up. Now Imperial has been eliminated it looks like simple me has to respond. Maybe you will be able to answer the question no one else wants to touch:- How does a fire-protected, massive steel framed building fall down, on it's own footprint, at free-fall speed, in 6.5 seconds?? If you can't answer that question precisely, please don't post some other rubbish.
