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Issues

From the Editor

Physics Today 73 (2), 8 (2020); https://doi.org/10.1063/PT.3.4399

Readers’ Forum

Physics Today 73 (2), 10–11 (2020); https://doi.org/10.1063/PT.3.4400
Physics Today 73 (2), 11 (2020); https://doi.org/10.1063/PT.3.4401

Search and Discovery

Physics Today 73 (2), 12–14 (2020); https://doi.org/10.1063/PT.3.4402

Until now, researchers have struggled to study reactions whose products they couldn’t see.

Physics Today 73 (2), 14–17 (2020); https://doi.org/10.1063/PT.3.4403

The quasiparticles essential for proposed magnonic devices exert a spin-transfer torque of the same magnitude as that of electrons.

Physics Today 73 (2), 17–19 (2020); https://doi.org/10.1063/PT.3.4404

High-frequency audibility is critical for understanding speech in crowded social settings.

Issues and Events

In Special Collection: Celebrating Black History
Physics Today 73 (2), 20–23 (2020); https://doi.org/10.1063/PT.3.4405

The recommendations of a new AIP report aim to catalyze and guide a huge cultural shift.

Physics Today 73 (2), 23–25 (2020); https://doi.org/10.1063/PT.3.4406

Scientists say subcritical experiments with plutonium will eliminate the need for nuclear tests, a promise that was first made in 1995.

Articles

Physics Today 73 (2), 26–33 (2020); https://doi.org/10.1063/PT.3.4407

Climate conditions for growing corn and soybeans have improved, but current trends indicate they will not last.

Physics Today 73 (2), 34–40 (2020); https://doi.org/10.1063/PT.3.4408

As a clinical technology, MRI offers unsurpassed flexibility to look inside the human body.

Physics Today 73 (2), 42–48 (2020); https://doi.org/10.1063/PT.3.4409

The definition has evolved through history from an acoustical term informed by music to a plurality of meanings. Today one person’s noise may be someone else’s signal.

Books

Physics Today 73 (2), 49–50 (2020); https://doi.org/10.1063/PT.3.4410
Physics Today 73 (2), 50–51 (2020); https://doi.org/10.1063/PT.3.4411
Physics Today 73 (2), 52–53 (2020); https://doi.org/10.1063/PT.3.4412
Physics Today 73 (2), 54 (2020); https://doi.org/10.1063/PT.3.4413

New Products

Physics Today 73 (2), 55–57 (2020); https://doi.org/10.1063/PT.3.4414

Obituaries

In Special Collection: Print Obituaries
Physics Today 73 (2), 59 (2020); https://doi.org/10.1063/PT.3.4415
In Special Collection: Print Obituaries
Physics Today 73 (2), 60 (2020); https://doi.org/10.1063/PT.3.4416

Quick Study

Physics Today 73 (2), 62–63 (2020); https://doi.org/10.1063/PT.3.4417

With complex throwing patterns of multiple objects, jugglers seemingly defy human limits of reaction time and throwing accuracy.

Back Scatter

Physics Today 73 (2), 64 (2020); https://doi.org/10.1063/PT.3.4418
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