People head indoors as extreme cold grips Williams Lake
Both shelters have room for more people, recreation complex busy with patrons
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Both shelters have room for more people, recreation complex busy with patrons
Chinese Academy of Sciences A research group led by Prof. ZHANG Shougang and Prof. YUN Enxue (Peter Yun) from the National Time Service Center (NTSC) of the Chinese academy of sciences (CAS) developed a high-performance and compact coherent population trapping (CPT) atomic clock, which solves the miniaturization problem of high-performance CPT atomic clock. The study was published in Metrologia on July 1. The current chip-scale atomic clocks (CSAC) based on the CPT occupy volume similar to that of a matchbox. There is still much room for its frequency stability to be improved for the applicat...