Definitions
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Etymologies
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Examples
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It is the task of scientists and officials at the International Earth Rotation Service based in France to study the planet's rotation.
Time running out for 'leap second' that has kept us in step with our slowing planet 2012
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The International Earth Rotation Service has done this 23 times before since 1972.
Happy New Year...no, wait, now! doyle 2008
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The International Earth Rotation Service has done this 23 times before since 1972.
Archive 2008-12-01 doyle 2008
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So, in 1972, an international agreement decreed that instead of continually revising the definition of a second, atomic clocks would be adjusted by adding a leap second each time an appreciable discrepancy was detected by observations made at the International Earth Rotation Service in Paris.
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