Portland, Ore. Sept. 10, 2020 5:32 p.m. Updated: Sept. 11, 2020 9:40 p.m. After more than 100 days of demonstrations for racial justice, Portland Mayor Ted Wheeler has banned the city’s police force ...
Some of the most sensitive methods of measuring magnetic fields use interactions of resonant light with atomic vapour. Recent developments in this vibrant field have led to improvements in sensitivity ...
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