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Think Again

BBC One
on BBC One London

Six programmes with Johnny Ball
This week discover the fun behind the facts about Clocks. How Stone Age man used the sun to tell the time, the Chinese used water, and how some inventors used gravity and precious stones.
So Think Again about clocks - it's about time.
Did you know that one man took 26 years to produce a clock that won him £20,000?
BBC Bristol

Contributors

Presenter/Writer:
Johnny Ball
Designer:
John Bone
Director:
Mike Seddon
Producer:
Albert Barber
Source: Radio Times

BBC One London

About BBC One

BBC One is a TV channel that started broadcasting on the 20th April 1964. It replaced BBC Television.

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