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作 者:Chris Palmer
机构地区:[1]Senior Technology Writer
出 处:《Engineering》2023年第8期6-7,共2页工程(英文)
摘 要:Half a century—plus 37 seconds—after it was first introduced to the world,the leap second has been scheduled for retirement.On 18 November 2022 at the General Conference on Weights and Measures(CGPM)outside of Paris,France,representatives of governments around the globe decided that astronomical time(known as UT1),which is determined by Earth’s rotation,will be allowed to diverge by more than one second from Coordinated Universal Time(UTC),which is based on the steady ticking of atomic clocks[1].While the change—not to be implemented until 2035—will go unnoticed by most people,it promises to simplify the timekeeping vital to services provided by a wide range of global industries,including transportation,defense,and finance.
分 类 号:TH714.8[机械工程—测试计量技术及仪器]
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