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Physics Today

Physics Today     04.09.2019

Getting rid of the Swedish bomb

Why do states develop nuclear weapons, and how can they be discouraged from doing so? The story of Sweden provides some insight. A nuclear aspirant in the 1950s, Sweden eventually changed its course and became one of...
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61
Physics Today     03.09.2019

Environmental sustainability goals drive changes in conference practices

Frequent travel is a professional norm in academia. Attending and speaking at conferences is expected of active researchers at all levels. But traveling to attend conferences can greatly expand a researcher’s carbon...
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Physics Today     03.09.2019

Physics Today

September 2019 Computer scientist Manohar Vanga generated this image from a photograph by iteratively adjusting the colors of a pixel's neighbors via a random walk in color space. Random walks are the crucial...
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Physics Today     03.09.2019

Physics Today's cover photo

September 2004 Our cover photo shows a tree, a typical one that exhibits multiple branching levels. Studies have shown that the number of branches in a tree varies roughly as the predicted inverse square of the...
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156
Physics Today     01.09.2019

How strong can a hurricane get?

With its sustained winds of 185 mph, Hurricane Dorian is about as strong as an Atlantic hurricane can get. We explored the variables that determine a tropical cyclone's maximum wind speed in 2017, when Hurricane Irma...
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Physics Today     30.08.2019

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Born on 30 August 1912 in Taylorville, Illinois, Edward Mills Purcell was a physics Nobel laureate who developed a way to measure radio emissions from hydrogen in space. Purcell started out in electrical engineering,...
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Physics Today     30.08.2019

Commentary: On the quality and costs of science publication

Detlef Lohse and Eckart Meiburgask ask what are the benefits and costs in the new push for Plan S, and open access. https://physicstoday.scitation.org/doi/10.1063/PT.3.4259
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114
Physics Today     30.08.2019

Q&A: Marylia Kelley, Lawrence Livermore watchdog

On 6 August, Marylia Kelley stood in front of the gates of Lawrence Livermore National Laboratory in California and spoke at an event commemorating the 1945 atomic bombing of Hiroshima. Organizing the annual...
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Physics Today     29.08.2019

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Born on 29 August 1959 in London, Stephen Wolfram is a physicist who created software including Mathematica and Wolfram|Alpha. Wolfram published his first scientific paper at age 15 and earned his PhD in theoretical...
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Physics Today     29.08.2019

Tracking the journey of a uranium cube

In the summer of 2013, a cube of uranium two inches on a side and weighing about five pounds found its way to the University of Maryland. If the sudden appearance of the unusual metal cube wasn’t intriguing enough, it...
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