
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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Air Date: 2000-01-02
When the British Parliament creates an award of £20,000 to whoever can come up with a solution for determining longit...
Air Date: 2000-01-03
Rallying after sickness to prove the integrity of their marvelous seafaring chronometers, the Harrisons still had to ...