To understand what happened to the Twin Towers on 9/11, a scientist set up an elaborate computer simulation of the event. It ended up not just predicting the manner of the collapse, but also its speed.
The World Trade Center towers were once the tallest buildings in the world, marvels of engineering and architecture. But on 9/11, within two hours of being hit by a terrorist attack, they collapsed. The official report has left many questions unanswered and spawned countless conspiracy theories. But two scientists, working independently, have come up with the same new theory, based on missing evidence, which may finally explain what happened on that tragic morning.
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