place…? Here is the sentence …
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This former landmark office block of 30 storeys featured a concrete core throughout, but with concrete columns up to the 21st floor and steel columns between the 22nd and 30th floors.
i have seen plane disasters on TV and when planes hit the ocean it disintegrates into tiny pieces
When it cant make an impact on water is it possible that it made impact on the WTC cutting the steel columns in the same?
Do you suspect it was a military plane made of hard substance or was it a missile?
Is the following description of building considered as hybrid building?
Here it is:
*This former landmark office block of 30 storeys featured a concrete core throughout, but with concrete columns up to the 21st floor and steel columns between the 22nd and 30th floors.*