Village at the heart of the race for longitude

Sally Fairfax,in Barrow-upon-Humberand
Paul Johnson,East Yorkshire and Lincolnshire
News imageNeil Hall/EPA/Shutterstock A woman, slightly out of focus, wears purple gloves and a blue apron as she adjusts a large, golden 18th Century timepiece. She is wearing glasses and focusing intently. The timepiece has a rectangular base and two raised arms, each topped with a metallic globe.Neil Hall/EPA/Shutterstock
John Harrison's H1 marine timekeeper at the Prince Philip Maritime Conservation Centre in London, where it is being restored

His inventions shaped the world as we know it – and famously made Del Boy rich.

Carpenter and clock-maker John Harrison died 250 years ago in March 1776, on his 83rd birthday.

He is known today for the marine chronometer, a device that solved the age-old problem of calculating longitude – how far east or west a ship is –while at sea.

It helped to transform navigation and led to safer and faster voyages across the oceans.

And for a generation of TV viewers, Harrison's work was the device that finally made the Trotters millionaires in Only Fools and Horses, when Del and Rodney sold one of his long-lost timepieces at auction, in the 1996 episode Time on Our Hands.

In Barrow-on-Humber, North Lincolnshire, a statue of Harrison stands in the marketplace, near the remains of the wall of his workshop. Nearby, a real ale pub is, predictably, called Harrison's.

The latest tribute to the village's most famous son is a plaque at the railway station, which commemorates his life and work.

It was unveiled on Tuesday by Howard Boyd, a sculptor and Harrison enthusiast who lives locally.

News imageA woman and a man remove a blue curtain covering an information board on a railway station platform. The woman has grey hair and wears a blue coat and matching dress and scarf. The man as white hair, a full beard and wears a three-piece grey pin-striped suit. The board, primarily coloured white and blue, features text and images, including a picture of a man wearing 17th Century clothing and the words: "John 'Longitude' Harrison & Barrow Haven".
Howard Boyd unveils an information board about Harrison, with Christine Andrew, an adopter of Barrow Haven railway station

"I was absolutely fascinated by this man," Boyd tells the Secret Lincolnshire podcast. "He was quite a metallurgist.

"An absolute, an utter genius."

The 18th-Century search for ways to calculate longitude at sea captivated the nation.

The complex conundrum baffled scientists as they attempted to accurately measure exact points east and west from a fixed meridian line.

For decades from 1714, experts and enthusiasts submitted their ideas to the Board of Longitude in the hope of winning a £20,000 prize - worth about £3.5m in today's money.

Listen to the story of John Harrison and longitude

The son of a carpenter, Harrison was born in Nostell, near Wakefield, in 1693. His family moved to Barrow when he was a small boy.

He spent his early years creating clocks entirely from wood. Later, Harrison realised that the solution to calculating longitude was creating a reliable clock that could keep the time of a reference place, such as Greenwich, and provide an accurate local time.

He created his first marine timekeeper, the H1, in 1735 and it was tested in the Humber Estuary off Barrow Haven. By 1759, he had developed the watch that won the Longitude prize.

But despite his genius, Harrison was known as a difficult character to deal with, Boyd says.

"He was a bit of a rascal, you know, he was an irascible man.

"He was very awkward in his dealings with the Board of Longitude. He had no patience with them at all and he said as he thought, which didn't go down very well."

News imageA dark grey statue of a man in 18th Century clothing and wig. He is looking down at an object held in his hands. A beige stone plinth has the words "John Harrison, 1693-1776" etched into it. The statue stands in front of a patch of green grass and a white-washed terrace of houses. Blue planters stand to either side of it.
A statue of John Harrison in Barrow-upon-Humber, where he carried out his experiments

Fortunately, his son, William, took over negotiations with the board.

"He was awarded half the prize," Boyd explains. "The other half was withheld."

It wasn't until William appealed to the king, himself a keen amateur clock-maker, that Harrison received the rest of the prize.

Incredibly, Harrison is not only credited with the life-saving marine chronometer.

While developing the watch in Barrow, he needed to find a way for its workings to be unaffected by variations in temperature and for it to function on board a constantly moving ship. That meant inventing the bimetallic strip, which is now used in hundreds of devices, including thermostats, fire safety devices and the humble kettle.

Harrison is also credited with inventing the caged roller bearing for his "sea watch", which has gone on to become an important element in modern machinery.

News imageA television promotional picture showing three men standing shoulder to shoulder as they hold a small pocket watch with a white face. The man on the left is wearing a checked flat cap, a burgundy leather jacket and an orange polo-neck sweater. The man in the midden is wearing a tweed jacket, checked shirt and brown tie. The man on the right is younger and is wearing a blue coat and holding a notepad and pen.
David Jason, Michael Jayston and Nicholas Lyndhurst pose with the fictional Harrison timepiece that made Del Boy and Rodney rich in Only Fools and Horses

So what would the modern world make of Harrison, a man who did so much to create it?

"Well, he's a very crabby old fellow," says Boyd, 81. "I mean, cranky, I'm getting that way myself.

"Where would he have been? He would have been into technology and everything else, but his precision and his draftsmanship were incredible, it's perfect for his time."

And given what he invented, what would the world be like without him?

"Where would the Industrial Revolution be without those inventions?

"We owe him a lot and, in my opinion, he ought to be on a plinth in Trafalgar Square."

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