What Time is It?

Synopsis: Professor Brian Cox explores what we really know about time. From our historical dictator of time - the Sun - to the world’s irregular flutters and the physical definition of a second by an atomic clock, Brian discovers telling the time is a tricky business. But why do we need to know what time it is so very accurately? Without correct time signals, aircraft, telecommunications systems, the world’s global financial systems, global positioning and many other systems we use and rely on every day wouldn’t work. They all depend on knowing the time. Exactly. In this film, Brian pushes our understanding of time to the depths of our imagination.
Series: Horizon, Series
Language: English
Country: Great Britain
Year of release: 2008
Year of production: 2008
Notes: Broadcast on BBC2 on 2/12/2008
Subjects: Physics
Keywords: philosophy of science; time; time measurement

Name: BBC Active Video for Learning - now BBC Learning
Contact: Carolina Fernandez Jeremy Wilcox (CF - for educational enquiries JW - channel sales manager)
Email: BBCStudiosLearning@bbc.com
Web: https://www.bbcstudioslearning.com/ External site opens in new window
Phone: +44 (0) 20 8433 1009
Address: BBC Studios Limited
Television Centre
101 Wood Lane
London
W12 7FA
UK
Notes: The BBC Active company has now been absorbed within BBC Learning, a division of BBC Studios. It was originally a joint venture between BBC Worldwide and Pearson Education. Formerly known as ‘BBC Worldwide Learning Studies’ and before that as ‘Videos for Education & Training’

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British Universities Film & Video Council