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The Case for Electric Vehicles

New technological developments have put practical electric cars within reach, but politics may slow the shift away from internal-combustion engines

By Daniel Sperling

Immunity and the Invertebrates

The fabulously complex immune systems of humans and other mammals evolved over hundreds of millions of years -- in sometimes surprising ways

By Gregory Beck and Gail S. Habicht

Sharks and the Origins of Vertebrate Immunity

Sharks, which have existed for as many as 450 million years, offer glimpses of a distant period in the evolution of the immune system

By Gary W. Litman

Quantum Seeing in the Dark

Quantum optics demonstrates the existence of interaction-free measurements: the detection of objects without light—or anything else —ever hitting them

By Paul Kwiat, Harald Weinfurter and Anton Zeilinger

Global Climatic Change on Mars

Today a frozen world, Mars at one time; may have had more temperate conditions, with flowing rivers, thawing seas, melting glaciers and, perhaps, abundant life

By Jeffrey S. Kargel and Robert G. Strom

Can China Feed Itself?

Some surprisingly reasonable policy changes would enable the world's largest nation to produce more food for its 1.2 billion citizens

By Roy L. Prosterman, Tim Hanstad and Li Ping


A new model of this reading disorder emphasizes defects in the language-processing rather than the visual system. It explains why some very smart people have trouble learning to read...

By Sally E. Shaywitz

Rock Art in Southern Africa

Paintings and engravings made by ancestors of the San peoples encode the history and culture of a society thousands of years old

By Anne Solomon


  • From the Editor

    An Honest Quantum Con Job

  • Letters

    Letters to the Editors, November 1996

  • Recommended

    Reviews and Commentaries—The World on a Platter

  • Anti Gravity

    On Presidents and King

  • 50, 100 & 150 Years Ago

    50, 100 and 150 Years Ago: Vitamin C Deficiency, London to Brighton Run and Issues with the Telegraph

  • Wonders

    Giant against Giant in the Dark

  • In Brief

    In Brief, November 1996

  • Profile

    Starting with a Clean Slate

  • Mathematical Recreation

    A Guide to Computer Dating

  • Amateur Scientist

    Much Ado about Nothing

  • Science and the Citizen

    Hot Jupiters

  • Multicultural Studies

  • Science with Brass

  • Different Strokes

  • By the Numbers

    Global Forest Cover

  • Working Knowledge

    Television Ratings—Working Knowledge

  • Connections

    What Goes Around Comes Around

  • Cyber View

    The Rosetta Hack

  • Field Notes

    Bring Me a Shrubbery

  • Technology and Business

    Pressure to Change

  • Needles in A Cold War Haystack

  • Pump It Up

  • Molecular Molds

  • Pictures Worth a Thousand Cameras

  • In Focus

    The Price of Silence

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