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Smart Cards

As potential applications grow, computers in the wallet are making unobtrusive inroads

By Carol H. Fancher

The Stellar Dynamo

Sunspot cycles--on other stars--are helping astronomers study the sun's variations and the ways they might affect the earth

By Elizabeth Nesme-Ribes, Sallie L. Baliunas and Dmitry Sokoloff

Gradients That Organize Embryo Development

A few crucial molecular signals give rise to chemical gradients that organize the developing embryo

By Christiane Nüsslein-Volhard

Sands of the World

One of the most common elements on the earth's surface, sand is also one of the most various

By Walter N. Mack and Elizabeth A. Leistikow

Probing High-Temperature Superconductivity

Recent experiments exploiting subtle quantum effects yield important clues about why some ceramics conduct electricity without resistance

By John R. Kirtley and Chang C. Tsuei

The Mystery of Lambic Beer

An ancient brewing technique produces a beverage so complex that it is still yielding its secrets to organic chemists

By Jacques De Keersmaecker

Ring Bubbles of Dolphins

A number of bottlenose dolphins in Hawaii can create shimmering, stable rings and helices of air as part of play

By Ken Marten, Karim Shariff, Suchi Psarakos and Don J. White

Gaining on Fat

By W. Wayt Gibbs


  • From the Editor

    Aliens at Play

  • Letters

    Letters to the Editors, August 196

  • Recommended

    The Culture Machine: Science and Art on the Web

  • Anti Gravity

    Patient, Smell Thyself

  • 50, 100 & 150 Years Ago

    50, 100 and 150 Years Ago: The Magnesium Age, Compressed Air Motor and Uninhabited Moon

  • Wonders

    Great Books and City Crops

  • Working Knowledge on Slot Machines

  • In Brief

    In Brief

  • Profile

    Exploring the Business of Space

  • Mathematical Recreation

    Shedding a Little Darkness

  • Amateur Scientist

    Detecting Micron-Size Movements

  • Science and the Citizen

    Public Eye

  • The Wall Falls

  • Mussel Mayhem, Continued

  • The Blustery Void

  • A New King and His Tiny Minion

  • Mouse To Father Rat?

  • By the Numbers

    Lethal Accidents, 1979-1992

  • Connections

    A Lot of Boloney

  • Cyber View

    The Notworking Computer

  • Recently Netted....

  • Field Notes

    Insects of Generation X

  • Technology and Business

    Magnet on the Brain

  • Too Much for Too Little

  • One Small Step

  • The Right Touch

  • Coat of Many Colors

  • In Focus

    Paying Attention

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