Controversial Ball
Meet the Shredder

Improvised explosive devices (IEDs), also known as roadside bombs, are the deadliest threat facing U.S. troops in the Afghanistan War and they are the weapon of choice for many insurgent groups. To better protect U.S. troops from IEDs, civilian mechanics at the Anniston Army Depot in Alabama have built the Assault Breacher Vehicle - a 64-ton tank nicknamed "the Shredder."

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This year, the U.S. Bureau of Engraving and Printing (a.k.a the "money factory") is all about the Benjamins. The new $100 bill was unveiled this April, and it looks to be much flashier than its predecessors. But this bill, the most technologically advanced the country has ever printed, was specially engineered not only to look cool but also to discourage criminal copycats.

© 2010 American Society for Engineering Education (ASEE)

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