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      10-05-2011, 01:41 AM   #56
Rochdale Pioneers
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Question for the engineers. OK, so lets say I buy the rational explanation of Tower 7. There have been very similar towers with much larger fires burning for longer that have not collapsed, or have seen a smaller cascade collapse on part of the structure.

If it only takes an office fire to cause a 47 storey building to collapse why has it vere happened before?

And none of you have explained the molten for days pools of steel yet. I know it doesn't fit your rational explanations but it was there. What (a) heated the steel up to melting temperature and (b) kept it so hot for so long?
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