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Readers’ Forum

Physics Today 68 (5), 8 (2015); https://doi.org/10.1063/PT.3.2759
Physics Today 68 (5), 8–9 (2015); https://doi.org/10.1063/PT.3.2760
Physics Today 68 (5), 9–10 (2015); https://doi.org/10.1063/PT.3.2761
Physics Today 68 (5), 10 (2015); https://doi.org/10.1063/PT.3.2762
Physics Today 68 (5), 10 (2015); https://doi.org/10.1063/PT.3.2763

Search and Discovery

Physics Today 68 (5), 12–14 (2015); https://doi.org/10.1063/PT.3.2764

Atmospheric maps and in situ spectrometry of clay minerals constrain climate models and the prevalence of water in the planet’s ancient past.

Physics Today 68 (5), 14–16 (2015); https://doi.org/10.1063/PT.3.2765

It’s long been thought that at size scales of tens of nanometers, our genetic material is packaged in a neat, orderly way. New observations show that’s not the case.

Physics Today 68 (5), 16–17 (2015); https://doi.org/10.1063/PT.3.2766

To explain the observed abundance of the light metallic element, astrophysical modelers have concluded that much of it was produced in stars. But direct evidence has been lacking until now.

Physics Today 68 (5), 18 (2015); https://doi.org/10.1063/PT.3.2767
Physics Today 68 (5), 18 (2015); https://doi.org/10.1063/PT.3.2768
Physics Today 68 (5), 18 (2015); https://doi.org/10.1063/PT.3.2769
Physics Today 68 (5), 18–19 (2015); https://doi.org/10.1063/PT.3.2770
Physics Today 68 (5), 19 (2015); https://doi.org/10.1063/PT.3.2771
Physics Today 68 (5), 19 (2015); https://doi.org/10.1063/PT.3.2772
Physics Today 68 (5), 19 (2015); https://doi.org/10.1063/PT.3.2773

Issues and Events

Physics Today 68 (5), 20–21 (2015); https://doi.org/10.1063/PT.3.2774

The machine that discovered the Higgs boson is flexing its muscles again. The results could be stunning new findings or striking new mysteries.

Physics Today 68 (5), 21–23 (2015); https://doi.org/10.1063/PT.3.2775

Bernard Bigot sees management of the seven-party international effort as a greater challenge than the technological demands.

Physics Today 68 (5), 23–25 (2015); https://doi.org/10.1063/PT.3.2776

With federal funding in decline, philanthropists are stepping up to back risky projects, early-career researchers, and expensive scientific equipment.

Physics Today 68 (5), 25–26 (2015); https://doi.org/10.1063/PT.3.2777

Pledged US greenhouse gas cuts should need no new authorizations from Congress, officials say.

Physics Today 68 (5), 26–28 (2015); https://doi.org/10.1063/PT.3.2778

Combined developments could break the logjam over disposition of spent nuclear fuel and defense high-level radioactive waste.

Physics Today 68 (5), 28–29 (2015); https://doi.org/10.1063/PT.3.2779

Nonproliferation concerns should propel US Navy to switch to safer nuclear fuel, says FAS task force.

Physics Today 68 (5), 29 (2015); https://doi.org/10.1063/PT.3.2780
Physics Today 68 (5), 29 (2015); https://doi.org/10.1063/PT.3.2781

Articles

Physics Today 68 (5), 30–35 (2015); https://doi.org/10.1063/PT.3.2782

Recent experiments suggest that helium-4 atoms can flow through an experimental cell filled with solid helium. But that incompletely understood flow is quite different from the reported superfluid-like motion that so excited physicists a decade ago.

Physics Today 68 (5), 36–42 (2015); https://doi.org/10.1063/PT.3.2783

Pulsations known as starquakes can provide precious glimpses into a star’s interior—and clues to how the star will live and die.

Physics Today 68 (5), 44–48 (2015); https://doi.org/10.1063/PT.3.2784

A panel discussion: Nine specialists foresee an expanded frequency range, new kinds of lasers, and many novel applications.

Books

Physics Today 68 (5), 50 (2015); https://doi.org/10.1063/PT.3.2785
Physics Today 68 (5), 50–52 (2015); https://doi.org/10.1063/PT.3.2786
Physics Today 68 (5), 52 (2015); https://doi.org/10.1063/PT.3.2787
Physics Today 68 (5), 52–53 (2015); https://doi.org/10.1063/PT.3.2788
Physics Today 68 (5), 53–57 (2015); https://doi.org/10.1063/PT.3.2789

New Products

Physics Today 68 (5), 58–60 (2015); https://doi.org/10.1063/PT.3.2790

Obituaries

In Special Collection: Print Obituaries
Physics Today 68 (5), 63 (2015); https://doi.org/10.1063/PT.3.2791
In Special Collection: Print Obituaries
Physics Today 68 (5), 64 (2015); https://doi.org/10.1063/PT.3.2792
In Special Collection: Print Obituaries
Physics Today 68 (5), 65 (2015); https://doi.org/10.1063/PT.3.2793

Quick Study

Physics Today 68 (5), 66–67 (2015); https://doi.org/10.1063/PT.3.2794

The media attention bestowed on scientists is like a hundred-year flood—rare but potentially overwhelming for the unprepared.

Back Scatter

Physics Today 68 (5), 72 (2015); https://doi.org/10.1063/PT.3.2795
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