'Lone' longitude genius may have had help

23:00 11 May 2009

Even in the 18th century mariners couldn't accurately measure longitude at sea, leading to dangerous navigation errors. Country carpenter John Harrison is credited with changing that, by building timepieces more accurate than any before.

But a horologist who dismantled one of his masterpieces has uncovered evidence that Harrison did not work alone.

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Brass craftsmanship

The high quality of H1's brasswork also suggests Harrison had help, says Betts.

He thinks he may have had tuition, or even some parts finished for him, because it would have taken a carpenter a long time to become so skilled at brasswork.

"It was in Harrison's interest to play down the idea that he had help, and if he paid people for manual work he probably didn’t record their role."

(Image: NMM)
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