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From:
http://www.sharpprintinginc.com/911/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=269&MMN_position=517:517
“Careful, systematic observation of the WTC1 and WTC2 core remnants and perimeter motion allow for an understanding of the probable mechanism by which the Twin Towers collapsed. The perimeter seems to have been collectively stripped of flooring through progressive floor failure and fell outward as large, unbuckled, interconnected pieces while most core columns of the building survived the initial collapse.
“In the case of WTC1, since the entire northern portion of the core survived unbuckled and the perimeter fell outwards, also unbuckled, it is concluded that the portion of the flooring that holds the perimeter to the core must have been stripped or eroded as debris initially descended to the ground, leaving much of the core standing and the perimeter unsupported.”
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