Notes used by mathematician Alan Turing and his team to break the Nazi German code during World War II, which for some reason were being used as insulation in Bletchley Park’s Hut 6, will go on display later this month. The documents were recovered as part of a building restoration project, according to Mkweb and other news reports.
The documents, some of which illustrate a technique that Turing used to speed up decryption, are thought to be the only examples of that work in existence. Once they were discovered by building restorers, they were frozen for preservation.
Turing’s team worked to decrypt supposedly unbreakable code created by the Germans using the Enigma Machine (pictured above.) All of their work — on paper or otherwise — was top secret at the time and remained so for years after the war. The papers at issue here should have been destroyed but were apparently used to plug holes in the…
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