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Features

Quantum Chaos

Does chaos lurk in the smooth, wavelike quantum world? Recent work shows that the answer is yes-symptoms of chaos enter even into the wave patterns associated with atomic energy levels

By Martin C. Gutzwiller

Accretion Disks in Interacting Binary Stars

Disks of matter naturally organize themselves around objects ranging from newborn stars to quasars. An unusual class of variable

By John K. Cannizzo and Ronald H. Kaitchuck

Tribal Warfare

Contact between Europeans and Native Americans may have shattered a delicate social balance that had existed among local tribes. One result was widespread violence

By R. Brian Ferguson

Lightwave Communications: The Fifth Generation

Optical fibers doped with erbium and powered by tiny laser chips are revolutionizing the way signals are regenerated for transcontinental communications and for fast data transmission over fiber-optic networks

By Emmanuel Desurvire

Departments

  • After the Inferno

  • Plant Life in a CO2-Rich World

  • How Cells Absorb Glucose

  • How Sea Turtles Navigate

  • Living Together

  • Explosive Images

  • Green Machine

  • Coping with Math Anxiety

  • Letters

    Letters to the Editors, January 1992

  • Errata

  • Recommended

    Book Reviews, January 1993

  • 50, 100 & 150 Years Ago

    50 and 100 Years Ago, January 1992

  • Profile

    A Troubled Homecoming

  • Amateur Scientist

    How to Generate Chaos at Home

  • Science and the Citizen

    Venus Revealed

  • Rocky Rendezvous

  • Report Card

  • Under Construction

  • Bonus Game

  • Tacky Lasers are the Tiniest yet

  • Turing Test

  • Inside Job

  • Population Pressure

  • Departments

    No Tipping, Please

  • Essay: An Inner-City Education

  • Technology and Business

    Growing Strong

  • Current Event

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January 1992

Think Outside the Gift Box