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Features

Is Global Warming Harmful to Health?

Computer models indicate that many diseases will surge as the earth¿s atmosphere heats up. Signs of the predicted troubles have begun to appear.

By Paul R. Epstein

How Green are Green Plastics?

By Steven C. Slater and Tillman U. Gerngross

Fountains of Youth: Early Days in the Life of a Star

To make a star, gas and dust must fall inward. So why do astronomers see stuff streaming outward?

By Thomas P. Ray

Form from Fire

Self-propagating heat waves can engender new and improved materials, but only recently have researchers found ways to monitor these ultraquick chemical reactions

By Arvind Varma

The Universe's Unseen Dimensions

The visible universe could lie on a membrane floating within a higher-dimensional space. The extra dimensions would help unify the forces of nature and could contain parallel universes

By Nima Arkani-Hamed, Savas Dimopoulos and Georgi Dvali

Male Sexual Circuitry

By Irwin Goldstein

Birth of the Modern Diet

Ever wonder why dessert is served after dinner? The origins of modern Western cooking can be traced to ideas about diet and nutrition that arose during the 17th century

By Rachel Laudan

Departments

  • From the Editor

    If you can't Stand the Heat...

  • Letters

    Letters

  • Erratum

  • Recommended

    Hidden World

  • Anti Gravity

    Measure for Measure

  • 50, 100 & 150 Years Ago

    50, 100 & 150 Years Ago: Zeppelin's First Flight and Observing a Firestorm

  • Wonders

    Laws of Calorie Counting

  • In Brief

    Data Points: The Need for Zzz's

  • Profile

    Blue Chip

  • Mathematical Recreation

    A Fractal Guide to Tic-Tac-Toe

  • Amateur Scientist

    How to Rear a Plankton Menagerie

  • Science and the Citizen

    Global Positioning

  • Gene Scenes

  • Magnetic Anomalies

  • More Than the Best Medicine

  • Uncontrolled Burn

  • Island Survivors

  • Cosmic Cartography

  • Size Doesn't Matter

  • DNA Junk and Lupus

  • A Dose of Our Own Medicine

  • Atomic-Force Geckos

  • Sea Change for Tides

  • By the Numbers

    The U.S. Population Race

  • Working Knowledge

    Focusing in a Flash

  • Connections

    The Grand Plan

  • Departments

    End Point

  • Cyber View

    Circles of Trust

  • Technology and Business

    Different Stripes

  • No Resistance

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August 2000

Beyond XX and XY

Biology. Identity. Equality.