Atomic clocks are the basis upon which a second is defined. But there is a new kid on the block, the optical clock, which ...
A more precise definition of the second is crucial to all sorts of physical measurements – but to get there, scientists have ...
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Irish Mirror on MSNThe exact date clocks change in Ireland with 8pm sunsets just around the cornerClocks in Ireland will spring forward by one hour this weekend, marking the start of Daylight Saving Time and bringing longer ...
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