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Features

Radio-Emitting Flare Stars

Certain stars periodically erupt in a brilliant flare. The radio waves that are emitted by these flares are the first to have been definitely shown to come from individual stars other than the sun

By Sir Bernard Lovell

The Great Infra-Cambrian Ice Age

There is considerable geological evidence for an extensive glaciation some 600 million years ago. Its end caused an alteration of climate that made possible the proliferation of animal life in Cambrian times

By W. Brian Harland and Martin J. S. Rudwick

Wine

This happy invention of man is a solution of hundreds of subtly interacting substances. Modern understanding of the wine-making process cannot explain a great wine but guarantees a good one

By Maynard A. Amerine

The Embryological Origin of Muscle

How does the fertilized egg differentiate into specialized tissues? This traditional question of biology is now being investigated by growing differentiated muscle colonies from single embryonic cells

By Irwin R. Konigsberg

Liquid Crystals

Substances that behave mechanically as liquids yet exhibit many of the optical properties of crystals have been known for more than 70 years. Their technological possibilities are just beginning to be explored

By James L. Fergason

The Solutrean Culture

A vigorous hunting culture with a unique tool kit appeared in western Europe 21,000 years ago. Once deemed invaders, the practitioners of Solutrean techniques instead seem to have had their roots in France

By Philip E. L. Smith

Departments

  • 50 and 100 Years Ago: August 1964

  • Insect Attractants

  • Science and the Citizen: August 1964

  • Population Control in Animals

  • The Amateur Scientist

  • Letters

    Letters to the Editors, August 1964

  • Recommended

    Books

  • Bibliography

  • Mathematical Recreation

    Mathematical Games

  • Departments

    The Authors

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August 1964

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