Recently excavated artifacts from Pakistan have inspired a reevaluation of one of the great early urban cultures--the enigmatic Indus Valley civilization
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?
Recent evidence challenges long-held theories of how cells turn malignant--and suggests new ways to stop tumors before they spread
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
Adaptive antenna arrays can vastly improve wireless communications by connecting mobile users with virtual wires
Why do giant black holes and stellar baby booms, two phenomena with little in common, so often go together?
Deadline: Jul 30 2013
Reward: $100,000 USD
The Seeker desires a method for producing pseudoephedrine products in such a way that it will be extremely difficult for clandestine che
Deadline: Jun 29 2013
Reward: $7,000 USD
The Seeker for this Challenge desires proposals for chemical methods that could rapidly degrade a dilute aqueous solution
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