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October 2004

Volume 57, Issue 10

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Were Fundamental Constants Different in the Past?

Keith A. Olive and Yong‐Zhong Qian
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Atomic physics, nuclear physics, and cosmology enable physicists to probe changes in the fine‐structure constant over time scales ranging from a few years to nearly the age of the universe.

R‐Process Nucleosynthesis in Supernovae

John J. Cowan and Friedrich‐Karl Thielemann
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The heaviest elements are made only in cataclysmic events. Finding out whether supernovae are cataclysmic enough requires extensive astronomical observation and sophisticated computer modeling.

Shallow‐Water Acoustics

William A. Kuperman and James F. Lynch
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Extracting a signal from noise can be complicated, especially along a coastline filled with marine life, shipping lanes, undersea waves, shelves, and fronts that scatter sound.
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Physics Update

Stephen Benka and Phil Schewe
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Whence the Force of F  =  ma? I: Culture Shock

Frank Wilczek
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An American Physics Instructor in Botswana

Dan de Vries
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Quantum World Is Only Smoke and Mirrors

Aage Bohr, Ben R. Mottelson, Ole Ulfbeck, H. Dieter Zeh, and Michael Gerver
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An Early Route to MHV Tree Amplitudes

V. P. Nair
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Suárez a Father of South American Astronomy

Patricio A. A. Laura
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Naming a Name in H Spectroscopy

Daniel Kleppner
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Attosecond Bursts Trace the Electric Field of Optical Laser Pulses

Charles Day
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The familiar textbook sketch of light's oscillating electric field can now be drawn directly from measurements.

New All‐Electrical Measurement Schemes Can Detect the Spin State of a Single Electron

Richard Fitzgerald
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Spin‐to‐charge conversion improves prospects for semiconductor‐based quantum information processing.

Intense X-Shaped Pulses of Light Propagate Without Spreading in Water and Other Dispersive Media

Charles Day
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The nonlinear interaction of light with matter can imbue optical pulses with surprising and potentially useful properties.
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Special Report: Presidential Candidates Speak Out on Science Policies

Jim Dawson
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NASA Bows to Pressure to Save Hubble

Paul Guinnessy
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In a turnaround, NASA may extend the life of the Hubble Space Telescope by servicing it robotically. But doubts remain over the feasibility of such a mission, and over how NASA would pay for it.

Panel Chooses Superconducting Option for the International Linear Collider

Bertram Schwarzschild
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Physicists Get First Take at Science Fiction Film

Paul Guinnessy
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Japan Funds New Cosmic‐Ray Detector in Utah

Toni Feder
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Business Leaders Urged to Heed Global Warming Science

Jim Dawson
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News Notes

Jim Dawson and Paul Guinnessy
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Web Watch

Charles Day
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AVS to Assemble in Anaheim

Judith Barker
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The Herschel Partnership: As Viewed by Caroline

Michael Hoskin and Nina Byers, Reviewer
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Caroline Herschel's Autobiographies

Michael Hoskin and Nina Byers, Reviewer
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Bose–Einstein Condensation

Lev Pitaevskii, Sandro Stringari, and Anthony Leggett, Reviewer
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Probability Theory: The Logic of Science

E. T. Jaynes and Ralph Baierlein, Reviewer
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Introduction to Cosmology

Barbara Ryden and Bruce Partridge, Reviewer
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Fields, Flows and Waves: An Introduction to Continuum Models

D. F. Parker and James Casey, Reviewer
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Surface Science: An Introduction

K. Oura, V. G. Lifshits, A. A. Saranin, A. V. Zotov, M. Katayama, and John T. Yates, Jr., Reviewer
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An Analog Electronics Companion: Basic Circuit Design for Engineers and Scientists

Scott Hamilton and Lawrence Rubin, Reviewer
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Galaxies and the Cosmic Frontier

William H. Waller, Paul W. Hodge, and Judith Irwin, Reviewer
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Evolution of Networks: From Biological Nets to the Internet and WWW

S. N. Dorogovtsev, J. F. F. Mendes, and Albert‐László Barabási, Reviewer
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New Books

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Focus on Photonics and Imaging

Lawrence G. Rubin
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Bjorken, Callan Win Dirac Medal

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AAPT Bestows Honors

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In Brief

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Victor John Emery

John Tranquada, Myron Strongin, Peter Johnson, and Steven Kivelson
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Mario Iona

Herschel Neumann and Albert Bartlett
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Edwin Albert Power

David Craig and Thuraiappah “Thiru” Thirunamachandran
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Peter Wootton

Ira J. Kalet
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