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On the Cover

July-August 2002 Volume 90, Number 4

Atomic structures have been determined for many of the most important molecules in living cells. The machinery of protein synthesis has been revealed with the determination of the structures of the ribosome (red), transfer RNA (yellow) and most of the protein factors and enzymes involved (orange). ...


FEATURE ARTICLES

Protein Structures: From Famine to Feast *

Helen Berman, David Goodsell, Philip Bourne

Thousands of protein structures are known and accessible. Structural genomics is building on new technology to fill in the missing pieces.


Cluster Dynamics: Fast Reactions and Coulomb Explosion *

A. Welford Castleman, Jr., Lutz Poth, Eric Wisniewski

The femtochemistry of these unusual aggregates reveals much about the fleeting instant between reactant and product


The Evolutionary Ecology of Escherichia coli

Valeria Souza, Amanda Castillo, Luis Eguiarte

Abundantly studied and much feared, E. coli has more genomic plasticity than once believed and may have followed various routes to become a pathogen


Greek Astronomy and the Medieval Arabic Tradition *

George Saliba

The medieval Islamic astronomers were not merely translators. They may also have played a key role in the Copernican revolution


Serendipitous Radiation Monitors *

Robert Fleischer

Past radiation doses can be measured by studying the tracks that speeding particles have left in ordinary solids?detectors that just happened to be there


* access restricted to members and subscribers


DEPARTMENTS

COMPUTING SCIENCE

The World According to Wolfram

Brian Hayes

A review of Stephen Wolfram's A New Kind of Science

MACROSCOPE

Sharing in Science

Karen Seashore Louis, Lisa M. Jones, Eric G. Campbell

Are research results freely shared?

MARGINALIA

Carbides

Roald Hoffmann

Exploring the neglected world of carbides

ENGINEERING

Art and Iron and Steel *

Henry Petroski

A look at the often spectacular intersections between engineering and art

SCIENCE OBSERVER

Electric Stars

David Schneider

What accounts for the enigmatic x-ray pulses of V407 Vul?

Huygens's Clocks Revisited

Erica G. Klarreich

An explanation for the "odd sympathy" between clock pendulums

LETTERS TO THE EDITOR

Measuring Risks

Benefits of Dust

Access to Europa's Oceans

The Rudist Reefs and the Dinosaurs

Conflict Resolution

FROM THE PRESIDENT


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