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Issues

Reference Frame

Physics Today 62 (10), 8–9 (2009); https://doi.org/10.1063/1.3248496

Letters

Physics Today 62 (10), 10 (2009); https://doi.org/10.1063/1.3248447
Physics Today 62 (10), 10–12 (2009); https://doi.org/10.1063/1.3248449
Physics Today 62 (10), 10 (2009); https://doi.org/10.1063/1.4796978
Physics Today 62 (10), 12 (2009); https://doi.org/10.1063/1.3248452
Physics Today 62 (10), 12 (2009); https://doi.org/10.1063/1.3248454
Physics Today 62 (10), 12 (2009); https://doi.org/10.1063/1.3248456
Physics Today 62 (10), 12 (2009); https://doi.org/10.1063/1.4796981

Search and Discovery

Physics Today 62 (10), 14–16 (2009); https://doi.org/10.1063/1.3248458

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

Physics Today 62 (10), 16–19 (2009); https://doi.org/10.1063/1.3248460

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

Physics Today 62 (10), 18 (2009); https://doi.org/10.1063/1.3248463
Physics Today 62 (10), 19 (2009); https://doi.org/10.1063/1.3248498
Physics Today 62 (10), 19–20 (2009); https://doi.org/10.1063/1.4796984
Physics Today 62 (10), 20 (2009); https://doi.org/10.1063/1.4796986
Physics Today 62 (10), 20 (2009); https://doi.org/10.1063/1.4796989
Physics Today 62 (10), 20 (2009); https://doi.org/10.1063/1.4796991

Issues and Events

Physics Today 62 (10), 21–23 (2009); https://doi.org/10.1063/1.3248465

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.

Physics Today 62 (10), 23–25 (2009); https://doi.org/10.1063/1.3248467

The laboratory-directed R&D program is a bright spot in a bleak outlook for nuclear weapons R&D.

Physics Today 62 (10), 25–26 (2009); https://doi.org/10.1063/1.3248469

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

Physics Today 62 (10), 26 (2009); https://doi.org/10.1063/1.3248471
Physics Today 62 (10), 26 (2009); https://doi.org/10.1063/1.3248474

Articles

Physics Today 62 (10), 27–32 (2009); https://doi.org/10.1063/1.3248476

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.

Physics Today 62 (10), 34–39 (2009); https://doi.org/10.1063/1.3248499

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.

Physics Today 62 (10), 41–47 (2009); https://doi.org/10.1063/1.3248478

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.

Meetings

Physics Today 62 (10), 48 (2009); https://doi.org/10.1063/1.3693321
Physics Today 62 (10), 50–56 (2009); https://doi.org/10.1063/1.3693322

Books

Physics Today 62 (10), 57 (2009); https://doi.org/10.1063/1.3248480
Physics Today 62 (10), 57–58 (2009); https://doi.org/10.1063/1.3248483
Physics Today 62 (10), 58–59 (2009); https://doi.org/10.1063/1.3248485
Physics Today 62 (10), 59–60 (2009); https://doi.org/10.1063/1.3248487
Physics Today 62 (10), 60–66 (2009); https://doi.org/10.1063/1.3248489

New Products

Physics Today 62 (10), 68–70 (2009); https://doi.org/10.1063/1.3248491

Obituaries

In Special Collection: Print Obituaries
Physics Today 62 (10), 72–73 (2009); https://doi.org/10.1063/1.3248493
In Special Collection: Print Obituaries
Physics Today 62 (10), 73–74 (2009); https://doi.org/10.1063/1.3248494

Quick Study

Physics Today 62 (10), 76–77 (2009); https://doi.org/10.1063/1.3248495

In a reference frame fixed to the solar system’s center of mass, a satellite’s energy will change as it is deflected by a planet. But a number of satellites flying by Earth have also experienced energy changes in the Earth-centered frame—and that’s a mystery.

Back Scatter

Physics Today 62 (10), 100 (2009); https://doi.org/10.1063/1.3248445
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