Scientific American Magazine Vol 265 Issue 2

Scientific American Magazine

Volume 265, Issue 2

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Features

Antiscience Trends in the U.S.S.R.

A prominent Soviet scientist traces the reasons underlying the current surge in superstitions, cults and antitechnological protests in his country

Sergei Kapitza

Colliding Galaxies

Violent encounters between galaxies appear surprisingly common. Computer models and observations indicate that these cosmic collisions may form elliptical galaxies and activate quasars

Joshua Barnes, Lars Hernquist, François Schweizer

The Human Telomere

Although this specialized DNA cap at each end of the chromosome carries no genes, it is still valuable. Recent evidence indicates that chromosomes need their telomeres to survive

Robert K. Moyzis

Tracking and Imaging Elementary Particles

How and why 25 billion bits of data produced in a second by the world's largest collider are translated into images of elementary particles

Horst Breuker, Hans Drevermann, Christoph Grab, Alphonse A. Rademakers, Howard Stone

Biosensors

Sophisticated descendants of the canary in the coal mine are based on molecular components of plants and animals bound to microscopic electrodes or optical fibers

Jerome S. Schultz

Beewolves

The females of these insects are voracious predators, each year capturing many bees to feed to their young. The males are highly aggressive and fight among themselves for access to females

Howard E. Evans, Kevin M. O'Neill

Antichaos and Adaptation

Biological evolution may have been shaped by more than just natural selection. Computer models suggest that certain complex systems tend toward self-organization

Stuart A. Kauffman

Smart Genes

How do very similar genes produce very different cells? It depends on which genes are activated and when. The elaborate chemical messages that control differentiation are now being deciphered.

Tim Beardsley

Departments

Erratum

Letters to the Editors, August 1991

50 and 100 Years Ago: August 1991

Exporting Misery

Do DNA Fingerprints Protect the Innocent?

A Small Disturbance

Waves are Waves...

Caribbean Killer

The New Moon

Positive Response

Man's Best Friend

The Reward of Ideas that are Wrong

Ordering Chaos

Can Japan Put the Brakes on Global Warming?

Firewater Fish

Off the MAP

Painkiller

Binding Bone

The Rise and Fall of Cities

What in Heaven is a Digital Sundial?

Book Reviews, August 1991

The Second Bottom Line