Physics Today

• 1. Introduction

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  Physics Today has been landing on the desks of physicists every month since May 1948. It is the membership magazine of the American Institute of Physics, and its reach stretches across ten affiliated physics societies, including the American Physical Society. What makes a publication like this endure across decades of scientific upheaval? And what does it mean to hold a mirror up to a discipline that reshapes the world? Those are the questions this documentary will explore.

• 2. Who Reads It and Why

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  Members of ten physics societies receive Physics Today as part of their membership. That built-in audience shapes the magazine's voice and its range. Non-members can also access it through a paid annual subscription, widening the circle beyond any single society. The editorial approach covers multiple registers at once. Expert contributors write longer overview articles on major developments. Staff writers handle shorter review pieces that digest and contextualise the news. Politics, education, and issues touching the science community at large all find room on its pages. The result is a publication that functions as both a professional briefing and a record of physics as a living, contested field.

• 3. Science Meets Policy

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  Few moments in the magazine's history illustrate its scope more plainly than its coverage of the Strategic Defense Initiative, commonly known as the Star Wars program, during the 1980s. Physics Today engaged directly with questions of feasibility, treating the proposed missile defence shield not merely as a political story but as a problem in applied physics. That willingness to enter contested territory extended to the state of physics in China and the Soviet Union, subjects the magazine examined during the 1950s and 1970s. In an era of Cold War tension, writing frankly about science behind closed borders required both editorial nerve and access to credible expert voices.

• 4. A Measure of Influence

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  The Journal Citation Reports recorded a 2017 impact factor of 4.370 for Physics Today. Impact factors measure how often articles in a journal are cited by researchers in other publications over a two-year window. For a magazine aimed primarily at practitioners rather than specialists in a narrow sub-field, a figure of that magnitude signals that its overview and review articles are being used as genuine reference points in scientific literature. That reach across disciplines is a direct consequence of the magazine's design: articles written by experts but pitched to a broad physics audience tend to be cited by researchers working in adjacent areas who need a reliable entry point into unfamiliar territory.

• 5. A Living Archive

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  Physics Today has accumulated a historical record that spans more than seven decades of physics. Its editors have described the magazine as providing a historical resource of events associated with the field. Coverage of the Star Wars debate in the 1980s and analyses of physics under authoritarian governments in mid-century are now primary documents in the history of science policy. Future researchers tracing how the physics community understood its own moment, negotiated with governments, or debated feasibility questions will find in the monthly archive of Physics Today something no textbook can replicate: the record of a discipline thinking out loud, month by month, since May 1948.