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The clean-energy challenge redux
Physics Today 76 (11), 10 (2023);
Physics Today 76 (11), 10 (2023);

Search and Discovery

Physics Today 76 (11), 12–13 (2023);

Oxygen-isotope measurements of ocean-bottom organisms are an excellent indicator of the atmosphere’s radiation flux.

Physics Today 76 (11), 14–16 (2023);

Nuclear reactions produce a plethora of short-lived artificial isotopes. Figuring out what they look like has been a challenge.

Issues and Events

Physics Today 76 (11), 18–21 (2023);

A dedicated satellite would provide global coverage to improve understanding of the hydrologic cycle and inform water-use and risk-management strategies.

Physics Today 76 (11), 21–24 (2023);

Though quantum computers are still a decade or more away, NIST is finalizing new encryption standards now to replace current vulnerable protections.


Physics Today 76 (11), 26–32 (2023);

Recent studies of a model system—a fluid in a box heated from below and cooled from above—provide insights into the physics of turbulent thermal convection. But upscaling the system to extremely strong turbulence remains difficult.

Physics Today 76 (11), 34–41 (2023);

Proponents of Project Plowshare argued that using nuclear explosives for peaceful means offered technical and economic advantages. But getting the biggest bang for the buck didn’t outweigh the varied environmental and sociopolitical costs of their use.

Physics Today 76 (11), 42–49 (2023);

Unlike at most other observatories in the early 20th century, women working at Yerkes Observatory were able to earn graduate degrees. Here are some of their stories.


Physics Today 76 (11), 50–51 (2023);

General Relativity: The Theoretical Minimum, Leonard Susskind and André Cabannes

Physics Today 76 (11), 51–52 (2023);

On the Origin of Time: Stephen Hawking’s Final Theory, Thomas Hertog

Physics Today 76 (11), 53–54 (2023);

New Products

Physics Today 76 (11), 56–59 (2023);


In Special Collection: Print Obituaries
Physics Today 76 (11), 61 (2023);

Quick Study

Physics Today 76 (11), 62–63 (2023);

The winged mammals produce high-frequency sounds and listen to their echoes from surrounding objects to track down insects to eat. Counterintuitively, the interference from the echoes of clutter nearby can help.

Back Scatter

Physics Today 76 (11), 64 (2023);
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