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    Features

    Population, Poverty and the Local Environment

    As forests and rivers recede, a child's labor can become more valuable to parents, spurring a vicious cycle that traps families in poverty

    By Partha S. Dasgupta

    Sonoluminescence: Sound into Light

    A bubble of air can focus acoustic energy a trillionfold to produce picosecond flashes of light. The mechanism eludes complete explanation

    By Seth J. Putterman

    Manic-Depressive Illness and Creativity

    Does some fine madness plague great artists? Several studies now show that creativity and mood disorders are linked

     
    This article appears in the In-Depth Report Genius, Suicide and Mental Illness: Insights into a Deep Connection

    By Kay Redfield Jamison

    Masers in the Sky

    Interstellar gas clouds produce intense, coherent microwaves. This radiation offers a glimpse of the size, content and distance of objects that may otherwise be invisible

    By Moshe Elitzur

    The Mid-Cretaceous Superplume Episode

    The earth has an erratic "heartbeat" that can release vast amounts of heat from deep within the planet. The latest pulse of the earth occurred 120 million years ago

    By Roger L. Larson

    Toward "Point One"

    Gigabit chips are now in the laboratory. But the critical technology needed for manufacturing smaller circuits confronts diminishing returns

    By Gary Stix

    Departments

    • Manic-Depressive Illness and Creativity [All-Access Subscribers Only]

    • Errata

    • Dangerous Sex

    • No, Really, It Was This Big

    • Molecular Machines That Control Genes

    • The History of Synthetic Testosterone

    • Letters

      Letters to the Editors, February 1995

    • Recommended

      Behind the Curve

    • 50, 100 & 150 Years Ago

      50 and 100 Years Ago: Benefits of University Laboratories and Record Low Temperatures

    • Profile

      Strings and Gluons—The Seer Saw Them All

    • Amateur Scientist

      Producing Light from a Bubble of Air

    • Science and the Citizen

      Putting Alzheimer's to the Tests

    • Global Warming Is Still a Hot Topic

    • Broken Dreamtime

    • Commanding Attention

    • Finessing Fermat, Again

    • Seeing How the Earth Moved

    • It's Getting Easier to Find a Date

    • Nothing Personal, You're Just Not My Type

    • Out of the Lab and into the Fire

    • Departments

      Once Upon a Time There Was a Theory

    • Scientists and their CD-ROMs

    • Technology and Business

      A Budgetary Storm is Brewing

    • Agents and Other Animals

    • The Chilling Wind of Copyright Law?

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    February 1995