Main content
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.
大象传媒 World Service Archive
This programme was restored as part of the World Service archive project
Space
The eclipses, spacecraft and astronauts changing our view of the Universe
The Curious Cases of Rutherford and Fry
A pair of scientific sleuths answer your perplexing questions. Ask them anything!
Podcast
-
![]()
Discovery
Explorations in the world of science.
