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Exotic particles with four or more quarks

Physics Today - Fri, 08/29/2014 - 12:19

The familiar denizens of the particle zoo are made of two or three quarks, but particle theory allows for states comprising any number of those fundamental particles. Finally, after decades of searching, tetraquarks seem to have been spotted.

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A new era of nuclear test verification

Physics Today - Fri, 08/29/2014 - 12:19

The global network of sensors commissioned to monitor compliance with the Comprehensive Nuclear-Test-Ban Treaty has proven capable of that task and more.

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White House offers encouragement for cyberphysical systems

Physics Today - Fri, 08/29/2014 - 12:18

SmartAmerica Challenge catalyzes two dozen projects that add further functionality to the Internet of Things.

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Report urges more planning to cope with Fukushima-like event

Physics Today - Fri, 08/29/2014 - 12:18

Industry and the NRC maintain that US reactor safety has greatly improved in the three years since Japan’s nuclear catastrophe.

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Out of Ehrenfest’s closet

Physics Today - Fri, 08/29/2014 - 12:18
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Mapping the mass of a galaxy cluster

Physics Today - Fri, 08/29/2014 - 12:18
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Dimitri Manuel Mihalas

Physics Today - Fri, 08/29/2014 - 12:18
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Stirling Auchincloss Colgate

Physics Today - Fri, 08/29/2014 - 12:18
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Principles of Musical Acoustics

Physics Today - Fri, 08/29/2014 - 12:18
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What we know and don’t know about tornado formation

Physics Today - Fri, 08/29/2014 - 12:17

Forecasters would love to predict violent weather with more accuracy and longer lead times. Researchers are helping them by unraveling the science behind the complex sequence of events that lead to tornadoes.

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New books

Physics Today - Fri, 08/29/2014 - 12:17
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