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Features

The Mortality of Men and Women

The tendency of women to live longer than men is increasing. The study of differences in the death rates of the sexes may hold clues to the prevention and treatment of many diseases

By Amram Scheinfeld

Strong Magnetic Fields

Physicists are building electromagnets whose fields compare with TNT in their concentration of energy. The resulting forces can explode the massive metal coils which produce them

By Harold P. Furth, Morton A. Levine and Ralph W. Waniek

Ancient Temperatures

The ratio of the oxygen isotopes in a fossil shell reflects the temperature of the water in which the shell grew. This "thermometer" is now used to study the climate of the past

By Cesare Emiliani

The Juvenile Hormone

The larva of an insect makes a hormone which keeps it from changing into a pupa until it has reached its full growth. Recent experiments with this substance have produced both dwarf and giant adult insects

By Carroll M. Williams

The Discovery of Fission

In 1939 Otto Hahn and Fritz Strassmann announced that uranium nuclei "burst" when they are bombarded with neutrons. How they came to this conclusion is a classic example of the nature of science

By Otto Hahn

Prehistoric Man in the Grand Canyon

In an oasis at the bottom of the Canyon live the Havasupai Indians, who have now been linked to a vanished people who settled the surrounding plateau in the seventh century A.D.

By Douglas W. Schwartz

Departments

  • Letters to the Editors, February 1958

  • 50 and 100 Years Ago: February 1958

  • The Metabolism of Ruminants

  • Science and the Citizen: February 1958

  • Ballistocardiography

  • Recommended

    Books

  • Mathematical Recreation

    Mathematical Games

  • Amateur Scientist

    The Amateur Scientist

  • Departments

    The Authors

  • Bibliography

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February 1958

Think Outside the Gift Box