Reply #58: Surprisingly, they did.

[Make7]

Quote: "Surprisingly, the World Trade Center towers were actually engineered to withstand the impact of a airliner collision." - engineering.com

They did withstand the impact. Or did I miss the video where the towers fell down right after the impact of the planes?

But there's more - the article continues....

Quote: "The most likely cause of the complete failure of the towers was the enormous heat generated by the ignited jet fuel (the reinforced steel core would likely have reached temperatures of 800°C or more). The resultant explosion and extremely intense fire would have substantially decreased the tower's ability to maintain it's structural integrity. The collapse of the upper floors and the inability of the lower floors to bear the load resulted in the catastrophic failure of both towers." - engineering.com

Seems like they're saying the cause of the collapse was not just from the impact of the planes. Hmmm....

-Make7