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The Next Generation of Particle Accelerators

The smallest of objects can be perceived only with the largest of instruments. Penetrating deeper into the structure of matter may require accelerators built with multinational sponsorship...

By Robert R. Wilson

The Cell Biology of Human Aging

When normal human cells grow in laboratory glassware, they eventually lose the ability to function and divide. The timing of this loss may well represent the limit of the human life span...

By Leonard Hayflick

World Uranium Resources

A case study in the estimation of mineral resources, supported by U.S. mining records, indicates that the supply of uranium will not be a limiting factor in the development of nuclear power...

By Kenneth S. Deffeyes and Ian D. MacGregor

The Galilean Moons of Jupiter

In viewing the four largest Jovian satellites last year the Voyager spacecraft increased to nine the number of earthlike bodies that can be closely compared to gain an understanding of how they evolved...

By Laurence A. Soderblom

Geometrical Illusions

In these classic figures of psychology lines appear different from the way they really are. The effects appear to be related to clues to the size of objects in the three-dimensional world...

By Barbara Gillam

The Ancestry of Corn

The progenitor of modern corn is probably the wild grass known as teosinte. The hypothesis has been disputed, but it is supported by new evidence from plant breeding, archaeology and folklore...

By George W. Beadle


This ancient scourge of man is perpetuated by infected wild animals, notably skunks, bats and foxes. The classic Pasteur vaccine treatment can now be replaced by a shorter and less painful series of inoculations...

By Martin M. Kaplan and Hilary Koprowski

The Origins of the Water Turbine

How did the water wheel evolve into the water turbine, the machine that converts a head of water into shaft power and provides a fourth of the world's electricity?

By Norman Smith


  • 50 and 100 Years Ago, January 1980

  • Science and the Citizen, January 1980

  • Letters

    Letters to the Editor, January 1980

  • Recommended

    Books, January 1980

  • Mathematical Recreation

    Mathematical Games, January 1980

  • Amateur Scientist

    The Amateur Scientist, January 1980

  • Departments

    The Authors, January 1980

  • Bibliography, January 1980

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