Leon Lobo, Head of the National Timing Center Programme at the National Physical Laboratory in Teddington, explains how we keep track of time, what an atomic clock is, and why accurate time keeping is important. This video is part of British Science Week, which this year is on the theme of time. RI science is for the whole family. Learn about science past, present and future with RI Family Membership. Join us today! https://www.rigb.org/join-and-support/become-ri-member | Royal Institution of Gr

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