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Measuring time
A look at time; how we measure minutes, weeks, months and years
A look at time; how we measure minutes, weeks, months and years. The first calenders date back to the Stone Age, and man has long been obsessed with making sure he can keep track of time. The earth's orbit of the Sun is not exactly 365 days, so a calender was made to introduce a leap day every four years, but even that isn't exact.
91热爆 World Service Archive
This programme was restored as part of the World Service archive project
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