Top ten best British tech inventions

From the computer to the World Wide Web, the iPod to the typewriter, a lot of modern technology started out in the UK

Thanks to the industrial revolution, the Second World War and the BBC, British inventions are behind more of modern life than you might realise.

Combine the resources of the Empire with the demands of automation and you get inventions that changed the world, from Jethro Tull's 1701 seed drill to the spinning machines of the 1760s to Bessemer's process for making better, cheaper steel.

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Add in refugees fleeing Nazi Germany, who brought the UK everything from developments in cryptography to what became holograms, plus some inventive UK companies whose technology sells better than their own products, and a surprisingly amount of tech ought be mark invented in Britain'.

1) The computer

In the 1820s, Charles Babbage was trying to make complex calculations easier by designing a calculating machine to replace the frequently inaccurate printed mathematical tables used by engineers. His Difference Engine was planned as a calculating machine that could add a sequence of numbers, but the Analytical Engine he designed in 1834 had all the principles of a computer; a separate processor and working memory, programming concepts like loops and parallel programming and even a printer.

Victorian manufacturing techniques weren't up to building Babbage's computer, and post-war Britain didn't have the facilities to build Alan Turing's planned Automatic Computing Engine in 1945 either. Incidentally, that was the same year as John von Neumannn's famous report on the potential of computers (based on the 1941 Atanasoff-Berry Computer, the first to use binary).

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Confusingly, von Neumann said the concept of the computer came from Turing's 1936 paper, with its discussion of a universal machine that could calculate anything that could be expressed as an algorithm. And in 1943, Tommy Flowers designed and built a system at Bletchely Park to crack a German cipher; Colossus was the first electronic, digital computer but it was an official secret and at the end of the war it was taken to pieces.

2) The computer program

Babbage borrowed the idea of using pattern cards to control his calculating machines from Jacquard weaving looms, but it was Countess Ada Lovelace (who called herself an Analyst and Metaphysician) who published the first program. She translated an 1842 French essay written about Babbage's work, adding her own explanation of how the Analytic Engine work - including a program for calculating a sequence of Bernoulli numbers. She also proposed the Engine could be used to calculate more than numbers, if you could express them as abstractions, for example, for composing music.

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3) Telephone and telegraph

Born in Scotland, Alexander Graham Bell moved to Canada for his health and worked on building his "harmonic telegraph" while teaching deaf students (including Helen Keller). Many people were working on the idea of a telephone using electromagnetic fields to send the vibrations of speech as electrical signals, which were picked up and reproduced by thin membranes, but he got the first patent in 1876.

While at Somerset College in Bath, Bell ran a telegraph wire from his room to a friend's; the electric telegraph was invented by Charles Wheatstone (who also invented the concertina and the Playfair cipher) and William Cooke in 1837, first installed it between two London stations that year but didn't become popular until it helped catch murderer John Tawell in London in 1845. The idea of instantaneous communication took off and telegraphs were installed in offices and clubs, with the first transatlantic cable coming ashore in Cornwall, which was used to send everything from stock prices to the results of horse races.

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