Scientific American Magazine Vol 271 Issue 5

Scientific American Magazine

Volume 271, Issue 5

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Features

Cerebrospinal Meningitis Epidemics

A debilitating and often deadly disease, meningitis remains common in many developing countries. New insights may soon enable us to predict and control outbreaks

Patrick S. Moore, Claire V. Broome

The Self-Reproducing Inflationary Universe

Recent versions of the inflationary scenario describe the universe as a self-generating fractal that sprouts other inflationary universes

Andrei Linde

The Genetics of Flower Development

Flower cells learn which organs to become from genes that convey positional information. A model based on just half a dozen such genes can predict how mutations will affect floral structure

Elliot M. Meyerowitz

Escher's Metaphors

The prints and drawings of M. C. Escher give expression to abstract concepts of mathematics and science

Doris Schattschneider

Secure Distributed Computing

Networks and computer security often do not go well together, but the developers of the Athena ystem have yet to see their protocols fail

Jeffrey I. Schiller

Why Children Talk to Themselves

Although children are often rebuked for talking to themselves out loud, doing so helps them control their behavior and master new skills

Laura E. Berk

Resolving Zeno's Paradoxes

For millennia, mathematicians and philosophers have tried to refute Zeno's paradoxes, a set of riddles suggesting that motion is inherently impossible. At last, a solution has been found

William I. McLaughlin

Big-Time Biology

Tim Beardsley

Departments

Letters to the Editors, November 1994

50 and 100 Years Ago: Increasing Profits for the Chemical Industry and Increased Noise

Talk about the Weather

Global Aid Wars

Sex, Death and Sugar

Brain Storm

Microquasars

A Nova Burns Out

Branching Out

Some Like it Hot--and Cold

Gruff Guru of Condensed-Matter Physics

Fighting for Survival

A New View for Surgeons

Productivity Lost

Pricing Internet

Ounce of Prevention

Bettering Batteries

An Economic Uncertainty Principle

Playing Chess on a go Board

Book Reviews--Of Ants and Men

Words at Play on the Internet