Scientific American Magazine Vol 291 Issue 5

Scientific American Magazine

Volume 291, Issue 5

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Features

Abrupt Climate Change

Winter temperatures plummeting six degrees Celsius and sudden droughts scorching farmland around the globe are not just the stuff of scary movies. Such striking climate jumps have happened before--sometimes within a matter of years

Richard B. Alley

Black Hole Computers

In keeping with the spirit of the age, researchers can think of the laws of physics as computer programs and the universe as a computer

Seth Lloyd and Y. Jack Ng

Computing at the Speed of Light

Emerging ways to make photonic connections to electronic microchips may dramatically change the shape of computers in the decade ahead

W. Wayt Gibbs

Holes in the Missile Shield

The national missile defense now being deployed by the U.S. should be replaced with a more effective system

Richard L. Garwin

Music and the Brain

What is the secret of music's strange power? Seeking an answer, scientists are piecing together a picture of what happens in the brains of listeners and musicians

Norman M. Weinberger

Rebuilding Broken Hearts

Biologists and engineers working together in the fledgling field of tissue engineering are within reach of one of their greatest goals: constructing a living human heart patch

Smadar Cohen and Jonathan Leor

A Split at the Core

Physics is forcing the microchip industry to redesign its most lucrative products. That is bad news for software companies

W. Wayt Gibbs

Departments

Errata

50, 100 & Years Ago: Puzzling Courtship, Mysterious Aether and Mythic Life-Forms

Data Points: November 2004

Brief Points, November 2004

Ask the Experts

Political Science

Flying Carpets and Scientific Prayers

Terrified by a Tyrannosaur

What's in a Name?

Getting Sicker

Wild Life

Keep the Beat

Letters