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The Structure of the Influenza Virus

A sequel to "The Influenza Virus," published in the April, 1953, issue of this magazine. Since that time the behavior of the virus has been increasingly related to its physical and chemical nature...

By Sir Macfarlane Burnet

The Intelligence of Elephants

How much can an elephant learn? Do elephants really possess a good memory? If so, is it associated with the fact that they have large brains? The answers are sought by experiments at a zoo in Germany...

By B. Rensch

Heart Metabolism

The muscle of the human heart continuously does twice as much work as the muscles in the arms and legs of a man running at top speed. This prodigy is studied by inserting a tube into the heart itself...

By Richard J. Bing

Atomic Clocks

The "pendulums" which regulate them are the vibrating parts of atoms or molecules. So steady are these oscillations that atomic clocks keep better time than the spinning earth itself

By Harold Lyons

Messengers of the Nervous System

The internal communication of the body is mediated by chemicals as well as by nerve impulses. Study of their interaction has developed important leads to the understanding and therapy of mental illness...

By Amedeo S. Marrazzi


Newton supposed that inertia was an independent property of matter. Some later physicists have argued that it is due to the interaction of all the matter in the universe

By Dennis Sciama

Sir William Perkin

A century ago a young English chemistry student made a mauve-colored dye from coal tar, thus launching one of the central themes of the modern chemical industry

By John Read

The Anthropology of Posture

Man differs from the apes by his standing posture, but this is only one among some 1,000 body positions of which he is capable. Here an anthropologist discusses their distribution and rationale...

By Gordon W. Hewes


  • 50 and 100 Years Ago: February 1957

  • Science and the Citizen: February 1957

  • Letters

    Letters to the Editors, February 1957

  • Recommended


  • Mathematical Recreation

    Mathematical Games

  • Amateur Scientist

    The Amateur Scientist

  • Departments

    The Authors

  • Bibliography

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