The fascinating story of John Harrison who, in the 18th century, believed he could make a clock that would work on board a ship—and so solve the problem of finding longitude at sea.
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Michael Gambon
John Harrison
Jeremy Irons
Rupert Gould
Gemma Jones
Elizabeth Harrison
Anna Chancellor
Muriel Gould
Stephen Fry
Sir Kenhelm Digby
Emma Kay
Laura Gurney