Wednesday 28th June 2:36 pm
Why we need a leap second added to our clocks
Tuesday 31st January 2017 2:37 pm
GREAT MOMENTS IN SCIENCE: As New Year’s Eve ticked over to 2017, scientists added an extra second to atomic clocks to compensate for the Earth’s variable rotation. Dr Karl explains the pros and cons of doing this.
Read more here:: Great moments in science
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