434 2 #1 September 19, 2011 According to a theory advanced by a SINTEF materials scientist, a mixture of water from sprinkler systems and molten aluminium from melted aircraft hulls created explosions that led to the collapse of the Twin Towers in Manhattan. http://www.sintef.no/home/Press-Room/Research-News/New-theory-explains-collapse-of-Twin-Towers/ Quote Share this post Link to post Share on other sites