Two independent research teams have achieved a longstanding goal in physics: building a working nuclear clock. The devices, developed by Beichen Huang and colleagues at Tsinghua University and by Luca ...

U.S. health officials warn that emergency room visits for tick bites are higher than normal in many parts of the country, putting a renewed focus on tick-borne diseases, including one that can cause a ...

Two teams of physicists have made the world’s first nuclear clocks. These radical new devices keep time using fluctuations in the energy states of an atom’s nucleus, rather than those of its electrons ...

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