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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

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

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

The Neurobiology of Fear

Researchers are beginning to tease apart the neurochemical processes that give rise to different fears in monkeys. The results may lead to new ways to treat anxiety in humans

By Ned H. Kalin

Inconstant Cosmos

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

By Corey S. Powell,


  • The Worst Enemy of Science

  • The Power of Maps

  • P.A.M. Dirac and the Beauty of Physics

  • Gigabit Gestalt

  • Garbage in, Gravel out

  • Book Reviews--The Legacy of Homo sapiens

  • Letters


  • Letters to the Editors, May 1993

  • 50, 100 & 150 Years Ago

    50 and 100 Years Ago: Asian Schools and Linguistic Spat

  • Amateur Scientist

    Mapping to Preserve a Watershed

  • Science and the Citizen

    Triple Whammy

  • Balanced Immunity

  • Honest Advertising

  • Three Faces of Venus

  • Make, Model and...

  • Attractive and Demure

  • "Daisy, Daisy"

  • Departments

    Why do Some Industries Pay Better?

  • Why Do Things Become More Complex?

  • Technology and Business

    Silicon Glen's Semi-Success

  • Bright Opportunity

  • Three Swings

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May 1993

20% Sitewide for President's Day