Scientific American Magazine Vol 250 Issue 3

Scientific American Magazine

Volume 250, Issue 3

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Features

"No First Use" of Nuclear Weapons

The security of all nations would be enhanced if the U.S. and its allies were to adopt a military strategy that did not rely on nuclear arms to counter a non-nuclear attack

Kurt Gottfried, Henry W. Kendall, John M. Lee

The Dynamic Abyss

Cold currents flowing toward the Equator in the deep ocean are often agitated by powerful storms. These disturbances transport huge volumes of sediment across the ocean bottom

Charles D. Hollister, Arthur R. M. Nowell, Peter A. Jumars

How Genes Control an Innate Behavior

The techniques of recombinant DNA are exploited to define a family of genes encoding a set of related neuropeptides whose coordinated release governs a fixed-action pattern: egg laying in a marine snail

Richard H. Scheller, Richard Axel

The Descent of Hominoids and Hominids

Findings over the past five years have made it possible to trace with greater assurance the divergence of the apes from the Old World monkeys and the later divergence of humans from apes

David Pilbeam

Excitonic Matter

A conduction electron can combine with a positively charged hole in a semiconductor to create an exciton. Excitons in turn can form molecules and liquids, and a new phase of matter may be attainable

James P. Wolfe, Andr Mysyrowicz

Muscle Sounds

Contracting muscle generates distinct sounds that are not heard only because the human ear is insensitive to low frequencies. Such sounds are now studied for their possible usefulness in science and medicine

Gerald Oster

The Adaptability of the House Mouse

The reproductive abilities of this small mammal are remarkably flexible. It is for this reason that the species flourishes in a great diversity of habitats, notably those it shares with human beings

F. H. Bronson

Florence Nightingale

She saved the lives of thousands of soldiers in the Crimea and was one of the founders of modern medical care. She was also a pioneer in the uses of social statistics and in their graphical representation

I. Bernard Cohen

Departments

Letters to the Editors, March 1984

50 and 100 Years Ago: March 1984

The Authors, March 1984

Computer Recreations, March 1984

Books, March 1984

Science and the Citizen, March 1984

The Amateur Scientist, March 1984

Bibliography, March 1984