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October 2009

Volume 62, Issue 10

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Shear thickening in colloidal dispersions

Norman J. Wagner and John F. Brady
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Shampoos, paints, cements, and soft body armor that stiffens under impact are just a few of the materials whose rheology is due to the change in viscosity that occurs when colloidal fluids experience shear stress.

The two‐fluid theory and second sound in liquid helium

Russell J. Donnelly
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Laszlo Tisza's contributions to our understanding of superfluid helium are often overshadowed by Lev Landau's, but Tisza's insights are still paying dividends—and not just for helium.

Teaching and learning astronomy in the 21st century

Edward E. Prather, Alexander L. Rudolph, and Gina Brissenden
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A national study of teaching and learning in courses that introduce astronomy to nonscience majors shows that interactive learning strategies can significantly improve student understanding of core concepts in astrophysics.
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A genuine teaching experience

Daniel Kleppner
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Recollections of Samuel Goudsmit's humor

William E. Howard, III, Lewis E. Snyder, and Aaron Temkin
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A life shaped by John Wheeler

A. Zee
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Troubling changes in scientific publishing

Peter Hawkes
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Putting a name to a face

Michael May
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Einstein and socialism

Rafael Sorkin and Robert Schulmann
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Hot dust evinces a violent planetary collision around a nearby star

Charles Day
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The dust's IR spectrum bears the signatures of crustal material that has been melted, vaporized, and blasted into space.

Superhydrophobic surfaces reduce drag

Mark Wilson
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Microscopic features on a wall can have an enormous influence on macroscopic flows along it.

Physics Update

Richard J. Fitzgerald, Stephen G. Benka, Jermey N. A. Matthews, Steven K. Blau, and Johanna L. Miller
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US government agencies work to minimize damage due to helium‐3 shortfall

Toni Feder
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Stiff new competition from security applications for a limited supply of helium‐3 threatens research in low‐temperature physics, neutron scattering, and medicine, for example.

As weapons work slows, DOE labs keep busy with research

David Kramer
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The laboratory‐directed R&D program is a bright spot in a bleak outlook for nuclear weapons R'D.

Mostly recovered, the LHC readies for restart

Toni Feder
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The LHC will run at reduced energy until its superconducting magnets are retrained and the connections between them fixed.

News Notes

Toni Feder
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Web Watch

Charles Day
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Plastic Fantastic: How the Biggest Fraud in Physics Shook the Scientific World

Eugenie Samuel Reich and Myriam P. Sarachik, Reviewer
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Mathematics for Physics: A Guided Tour for Graduate Students

Michael Stone, Paul Goldbart, and David Khmelnitskii, Reviewer
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Supersymmetry in Particle Physics: An Elementary Introduction

Ian Aitchison and Lisa Everett, Reviewer
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Acoustic Microscopy: Fundamentals and Applications

Roman Gr. Maev and Andrew Briggs, Reviewer
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New Books

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Focus on vacuum and cryogenics

Lawrence G. Rubin
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Arthur Dodd Code

Robert C. Bless and C. Robert O'Dell
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John Lamar Worzel

Dennis E. Hayes
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Earth flyby anomalies

Michael Martin Nieto and John D. Anderson
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Where Opportunity knocked

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