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Diet and Cancer

Recommendations aimed at reducing the incidence of cancers associated with nutrition are based on limited but suggestive evidence from epidemiological studies and animal experiments

By Leonard A. Cohen

Helium-Rich Supernovas

Computer modeling suggests that they result when the denuded core of a massive star collapses. These "peculiar" supernovas are close cousins of this year's bright event

By Robert P. Harkness and J. Craig Wheeler

Artificial Chromosomes

In its infancy genetic engineering was confined to the manipulation of individual genes. Now the same strategies can be used to create whole chromosomes in order to investigate chromosome behavior...

By Andrew W. Murray and Jack W. Szostak

Synchrotron Radiation

A threadlike beam of electrons wiggling through a gauntlet of magnets in a storage ring produces the world's brightest ultraviolet light and X rays. Such radiation opens the way to new science and technology...

By Herman Winick

The Ancestry of the Giant Panda

Is the panda a bear? Is it a raccoon? Or does it actually belong in a family of its own? Molecular analysis provides new insights into this long-standing genealogical problem

By Stephen J. O'Brien

Demons, Engines and the Second Law

Since 1871 physicists have been trying to resolve the conundrum of Maxwell's demon: a creature that seems to violate the second law of thermodynamics. An answer comes from the theory of computing...

By Charles H. Bennett

Early Farming in Northwestern Europe

Agriculture spread north and west from eastern Europe 8,000 years ago. Recent work based on distribution maps of Stone Age sites is showing how the "invasion" took place and what happened afterward...

By John M. Howell

Modeling Tidal Power

Computer simulations show that a tidal power dam in the Bay of Fundy would raise tide levels as far away as Boston. The models can now be used to help assess the environmental and economic cost of tidal power...

By David A. Greenberg


  • 50 and 100 Years Ago: November 1987

  • Odyssey

  • Ozone Watch

  • Double-Beta Decay

  • DNA Unveiled

  • Pluto's Poles

  • Unadvertised Receptivity

  • Goethe V. Newton

  • Hope for Blighted Bays

  • Stimulating Recovery

  • Stressed Out

  • Faces, Couches, Cats...

  • One-Stop Medicine

  • Aquatic Astronomy

  • Letters

    Letters to the Editors, November 1987

  • Amateur Scientist

    The Amateur Scientist, November 1987

  • Departments

    The Authors, November 1987

  • Computer Recreations, November 1987

  • Books, November 1987

  • Bibliography, November 1987

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