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The Power of Maps

The authoritative appearance of modern maps belies their inherent biases. To use maps intelligently, the viewer must understand their subjective limitations

By Denis Wood

The Economics of Life and Death

Mortality data can be used to analyze economic performance. Such information can illuminate critical aspects of the economic organization of society

By Amartya Sen

The Core-Mantle Boundary

This interactive zone may be the most dynamic part of the planet, directly affecting the earth's rotation and magnetic field

By Raymond Jeanloz and Thorne Lay

Intelligent Gels

Soft aggregations of long-chain molecules can shrink or swell in response to stimuli. They may form the basis of a new kind of machine

By Yoshihito Osada and Simon B. Ross-Murphy

Inconstant Cosmos

Space-based telescopes endowed with x-ray and gamma-ray vision observe an ever restless, dynamic universe.

By Corey S. Powell,

How Cells Respond to Stress

During emergencies, cells produce stress proteins that repair damage. Inquiry into how they work offers promise for coping with infection, autoimmune disease and even cancer

By William J. Welch


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