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August 2003

Volume 56, Issue 8

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The Discovery of Rapid Climate Change

Spencer Weart
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Only within the past decade have researchers warmed to the possibility of abrupt shifts in Earth's climate. Sometimes, it takes a while to see what one is not prepared to look for.
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A Topological Look at the Quantum Hall Effect

Joseph E. Avron, Daniel Osadchy, and Ruedi Seiler
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The amazingly precise quantization of Hall conductance in a two‐dimensional electron gas can be understood in terms of a topological invariant known as the Chern number.

Quantum Physics Under Control

Ian Walmsley and Herschel Rabitz
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Thanks to the increasing ability to coherently control quantum systems, designer Hamiltonians can be created to explore new physics and to yield a better understanding of complex phenomena.
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Physics Update

Phil Schewe and Ben Stein
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Science for All Americans: Seeking a Common Knowledge Core Across Disciplines

Richard Conn Henry, Jo Ellen Roseman, Rustum Roy, and Leon Lederman
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Ronald Richter, Genius or Nut?

Friedwardt Winterberg and Juan G. Roederer
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Baade, Shapley, and the Doubling of the Universe

Sidney van den Bergh and Norriss S. Hetherington
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Karl Brown's Role in TRANSPORT

David C. Carey
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Group Velocity Is Not Signal Velocity

Max J. Lazarus
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Correction

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Intriguing Properties Put Sodium Cobalt Oxide in the Spotlight

Barbara Goss Levi
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The compound is a good thermoelectric material. In hydrated form, it superconducts. And its structure is a theorist's dream.

Band on the Run: Light Meets Shock Fronts in Virtual Photonic Crystals

Steven K. Blau
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When light interacts with dynamically changing photonic structures, the results can be surprising—and in some cases unprecedented.

Watching a Molecule Break Up Reveals How Quickly It Changes Shape

Charles Day
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It takes less than 60 femtoseconds for a doubly charged acetylene ion to change into its structural isomer vinylidene.
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Astronomy Foes Join Forces to Build Giant Telescope

Toni Feder
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A new public–private partnership faces hurdles but promises to make the US a formidable international competitor in ground‐based astronomy.
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South Dakota Governor Pushes for Underground Lab as Homestake Water Rises

Jim Dawson
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NSF officials say approval of a science laboratory in the Homestake mine can come only after a multistep review process that takes “many months to many years.” But a determined Republican governor and South Dakota's congressional delegation may bring politics to the science.

Italy's Underground Lab Recuperates From Toxic Spill, Gets New Director

Toni Feder
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Research Workforce Will Weaken Without Focus on Homegrown Talent

Jim Dawson
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North American Women Sweep Top Honors at Intel Competition

Anthony Tweed
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News Notes

Jim Dawson and Toni Feder
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Web Watch

Charles Day
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Science Fashions and Scientific Fact

Michael Riordan
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Selectivity and Discord: Two Problems of Experiment

Allan Franklin and Benjamin Bederson, Reviewer
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Quantum Physics: A Text for Graduate Students

Roger G. Newton and N. G. Deshpande, Reviewer
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From Nuclear Transmutation to Nuclear Fission, 1932–1939

Per F. Dahl and Guy T. Emery, Reviewer
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Tools for Computational Finance, Rüdiger Seydel

Rüdiger Seydel and Frank Cuypers, Reviewer
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New Books

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Focus on Analytical Instruments

Lawrence G. Rubin
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Physicist, Chemist Will Receive Kyoto Prizes

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ASP Names Award Winners for 2003

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Academy Names Fellows, Foreign Honorary Members

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In Brief

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Grote Reber

J. Anthony Tyson
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Peter Gabriel Bergmann

Joshua N. Goldberg and Engelbert L. Schucking
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Robert Lull Forward

Gregory Benford and James Benford
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Frank Slagle Ham

George D. Watkins, W. Beall Fowler, and Michael D. Sturge
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Charles Earle Mandeville III

Vasant R. Potnis and Gary P. Agin
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