Scientific American Magazine Vol 268 Issue 5

Scientific American Magazine

Volume 268, Issue 5

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Features

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

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

Raymond Jeanloz, 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

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

Yoshihito Osada, Simon B. Ross-Murphy

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

Denis Wood

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

Ned H. Kalin

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

He preferred the beautiful theory to the fact-buttressed ugly one because, as he noted, facts change. He proved his point by predicting the existence of antimatter

R. Corby Hovis, Helge Kragh

Inconstant Cosmos

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

Corey S. Powell,

Departments

Letters to the Editors, May 1993

Errata

50 and 100 Years Ago: Asian Schools and Linguistic Spat

Triple Whammy

Balanced Immunity

Honest Advertising

Three Faces of Venus

Attractive and Demure

Make, Model and...

"Daisy, Daisy"

The Worst Enemy of Science

Gigabit Gestalt

Silicon Glen's Semi-Success

Bright Opportunity

Three Swings

Garbage in, Gravel out

Why do Some Industries Pay Better?

Mapping to Preserve a Watershed

Book Reviews--The Legacy of Homo sapiens

Why Do Things Become More Complex?