The Royal Mint has issued a commemorative 50-pence coin celebrating mathematician and computer scientist Alan Turing.
The Royal Mint has released a new collectable 50p coin to celebrate the life of British scientist and codebreaker Alan Turing.
Computer genius Turing is best known for breaking the German Enigma code during World War Two, leading to victory over Nazi Germany.
Historians believe he may have shortened the war by four years - saving tens of thousands of lives.
Turing already features on the new polymer £50 note - and now the Royal Mint are honouring him on a coin for the first time.
The 50p is available in gold, silver and base metal and was designed by artists Matt Dent and Christian Davies.
The reverse side of the coin features the name Alan Turing alongside an image of the Bombe machine used during the Second World War.
In a special nod to his work, the designers have incorporated hidden word sequences as part of the 50p design.
Each one represents a Turing quote and significant location, as well as the designers' initials.
The coin is the final release in the Innovation is Science 50p series, which also features Charles Babbage, John Logie Baird, Rosalind Franklin and Stephen Hawking, and the Discovery of Insulin.
Can you spot the hidden messages? One came easy to me, but it's front and center in the design. The second one (first, reading left to right on the coin) is a phrase related to Cambridge University, where Turing studied. Never woulda guessed that one.
Third are the designers initials. Once you see these, you can't unsee them. Not terribly well-hidden (by design, I'm sure), this code doesn't take a Turing-class genius to break. -Editor
To read the complete article, see:
Royal Mint releases new Alan Turing 50p coin - and it contains three secret messages
Wayne Homren, Editor
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