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Uncovering the Keys to the Lost Indus Cities

Recently excavated artifacts from Pakistan have inspired a reevaluation of one of the great early urban cultures--the enigmatic Indus Valley civilization

By Jonathan Mark Kenoyer

Pumphead

In what has become almost routine, the heart-lung machine "breathes" for patients during coronary-bypass operations. But could this lifesaving device have a dark side?

By Bruce Stutz

Counting the Last Fish

Overfishing has slashed stocks--especially of large predator species--to an all-time low worldwide, according to new data. if we don't manage this resource, we will be left with a diet of jellyfish and plankton stew

By Daniel Pauly and Reg Watson

Antennas Get Smart

Adaptive antenna arrays can vastly improve wireless communications by connecting mobile users with virtual wires

By Martin Cooper

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