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    Features

    Nuclear Bunker Buster Bombs

    New burrowing nuclear weapons could destroy subterranean military facilities--but their strategic and tactical utility is questionable

    By Michael Levi

    Electrodynamic Tethers in Space

    By exploiting fundamental physical laws, tethers may provide low-cost electrical power, drag, thrust, and artificial gravity for spaceflight

    By Enrico Lorenzini and Juan Sanmartín

    Next Stretch for Plastic Electronics

    Organic semiconductor devices can make more than just bendable displays. They will find use in wearable electronics, chemical sensors, skin for robots and innumerable other applications

    By Graham P. Collins

    Arsenic Crisis in Bangladesh

    Arsenic in drinking water could severely poison 50 million people worldwide. Strategies being tested in Bangladesh might help prevent the problem

    By A. Mushtaque R. Chowdhury

    Back to the Future of Cereals

    Genomic studies of the world's major grain crops, together with a technology called marker-assisted breeding, could yield a new green revolution

    By Stephen A. Goff and John M. Salmeron

    Departments

    • Oppenheimer Judged -- Kelvin Corrected -- Agassiz Contradicted

    • Questions That Plague Physics: A Conversation with Lawrence M. Krauss

    • Virtual-Reality Therapy

    • May Cause Wakefulness

    • Soaping up without Guilt

    • Sexual Healing

    • Letters

      Letters

    • Erratum

    • Advances

      Sloshing in Space

    • A Plan for Water

    • Anonymous Trust

    • Bumpy Flying

    • Salmon versus Salmon

    • I Don't Brake for Bogotá

    • Machine Made

    • Recommended

      Speaking for the Animals

    • Skeptic

      Miracle on Probability Street

    • Anti Gravity

      One Hundred Years of Magnitude

    • Perspectives

      The Green Gene Revolution

    • In Brief

      Data Points: SetiHome at Five

    • Brief Points: August 2004

    • Innovations

      Penny-wise Smart Labels

    • By the Numbers

      Middle of the Country

    • Technicalities

      Crippled but Not Crashed

    • Working Knowledge

      Seeing Inside

    • Insights

      From Finish to Start

    • Ask the Experts

      Ask the Experts: August 2004

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    August 2004

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