The magic wavelength of cadmium

Researchers experimentally determined a property of cadmium called the magic wavelength which is considered essential for the development of the most accurate clocks ever envisaged. The researchers hope this may permit simple ...

What will you do with your extra second?

This New Year's countdown will be one second longer as the National Physical Laboratory (NPL) introduces the 27th leap second into UTC(NPL), the UK's timescale. The additional second will keep the timescale based on atomic ...

The tick-tock of the optical clock

(PhysOrg.com) -- UK's National Physical Laboratory time scientists have made an accurate measurement of the highly forbidden octupole transition frequency in an ytterbium ion, which could be used as the basis for the next ...

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