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The Real Threat of Nuclear Smuggling

Although many widely publicized incidents have been staged or overblown, the dangers of even a single successful diversion are too great to ignore.

By Paul N. Woessner and Phil Williams

Caloric Restriction and Aging

Eat less, but be sure to have enough protein, fat, vitamins and minerals. This prescription does wonders for the health and longevity of rodents. Might it help humans as well?

By Richard Weindruch

Technology and Economics in the Semiconductor Industry

Although the days of runaway growth may be numbered, their passing may force chipmakers to offer more variety

By G. Dan Hutcheson and Jerry D. Hutcheson

Neural Networks for Vertebrate Locomotion

The motions animals use to swim, run and fly are controlled by specialized neural networks. For ajawless fish known as the lamprey, the circuitry has been worked out

By Sten Grillner

Cleaning Up the River Rhine

Intensive international efforts are reclaiming the most important river in Europe

By Karl-Geert Malle

The Evolution of Continental Crust

The high-standing continents owe their existence to the earth's long history of plate-tectonic actty

By S. Ross Taylor and Scott M. McLennan

Working Elephants

They earn their keep in Asia by providing an ecologically benign way to harvest forests

By Michael J. Schmidt

Explaining Everything

By Madhusree Mukerjee


  • From the Editor

    Letter from the Editors, January 1996

  • Letters


  • Letters to the Editors, January 1996

  • Recommended

    Reviews and Commentaries: Mating Games

  • Anti Gravity

    Into the Wild Green Yonder

  • 50, 100 & 150 Years Ago

    50, 100 and 150 Years Ago:Night Photography, Death of Alfred Ely Beach and Hypnosis

  • Wonders

    Head Start on the 20th Century

  • Profile

    From Fission Research to a Prize for Peace

  • Mathematical Recreation

    Mother Worm's Blanket

  • Amateur Scientist

    Recording Nature's Sounds

  • Science and the Citizen

    Listening to Culture

  • Strange Places

  • Star Dreck

  • Virtual Pollution

  • Resisting Resistance

  • The World According to RNA

  • Rubbed Out with the Quantum Eraser

  • Return of the Red Wolf

  • By the Numbers

    Colorectal Cancer Mortality Among Men

  • Connections

    Breakfast Thoughts

  • Departments

    Flying Blind

  • The Constraints of Chance

  • Field Notes

    Changing their Image

  • Technology and Business

    Return of the Breeder

  • Making Free Software Pay

  • Freewheeling

  • Playing Slartibartfast with Fractals

  • The Midnight Hour

  • Light Over Matter

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