Scientific American Magazine Vol 265 Issue 5

Scientific American Magazine

Volume 265, Issue 5

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Features

Firearms, Violence and Public Policy

More guns mean more deaths from crime and accidents. Yet in the u.s. many laws that regulate firearms are misdirected and ineffective. What we don't know about gun control can hurt us

Franklin E. Zimring

The Nuclear Equation of State

By describing how nuclear matter behaves at various temperatures and pressures, the equation offers a glimpse of new phases of matter and conditions inside a supernova or during the big bang

Hans Gutbrod, Horst Stöcker

Amyloid Protein and Alzheimer's Disease

When this protein fragment accumulates excessively in the brain, Alzheimer's disease may be the result. Understanding how that fragment forms could be the key to a treatment

Dennis J. Selkoe

Chromoskedasic Painting

It is a novel method for producing color images on black-and-white photographic paper without using pigments or dyes

Dominic Man-Kit Lam, Bryant W. Rossiter

Microlasers

Millions of lasers measuring just a few millionths of a meter can now be etched on a single chip, offering a host of novel applications in optical communications and information processing

Jack L. Jewell, James P. Harbison, Axel Scherer

Cultured Cells for the Treatment of Disease

The successful growth of human skin cells in culture has made it possible to restore epidermis after severe burns and other forms of damage

Howard Green

Genes, Peoples and Languages

The family tree relating human populations corresponds to another relating the languages of the world. Both trees imply a series of migrations; the biological evidence indicates a homeland in Africa

Luigi Luca Cavalli-Sforza

Mirroring the Cosmos

A new generation of telescopes that embrace huge light-collecting mirrors and cunning optical technology promises a tremendous leap in astronomers' ability to explore the universe.

Corey S. Powell

Departments

Letters to the Editors, November 1991

Errata

50 and 100 Years Ago: November 1991

Red Alert

Atomic Turn-on

Are Species Specious?

Dyslexia: A Problem of Timing

Murder Mystery

Big Bang

Quantum Pinball

Endless Endgame?

The Pied Piper of Superstrings

Brain, Food

Sustainable Jobs

Skinside Out

Plastic for the '90s

Human Spec Sheet

No Accounting for Disaster

Painting in Color without Pigments

Book Reviews, November 1991

Animal Thinking