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Conversation

It's Alan Turing on the £50! Delighted to be here launching the face of the new £50 note with

@DrEmilyGrossman

,

,

, and many others. Turing's work crossed, and was foundational in, fields as diverse as logic, computer science, theoretical biology, AI, maths.

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Dr Emily Grossman

@DrEmilyGrossman

I’m super excited to announce that from nearly 1000 nominated scientists we have chosen the father of computer science and WWII codebreaker Alan Turing to be the face of the new polymer £50 note. Hurray!

@bankofengland #Turing50 #ThinkScience #LGBTQ #Diversity

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@sim_manchester

has been inspiring me since school trips here - so what a privilege to return today to celebrate such a key figure in the intellectual history of the UK, and of Manchester. There’s a memorial to Turing on Sackville Street – near Manchester’s gay village. #LGBTQ

10:43 AM · Jul 15, 2019

#Turing50 Here's the design concept for the new £50 note 👇👇👇 It features some binary (can you tell what it is!?), a table showing a summary of Turing machine operations, and a Turing machine instruction that prints out some binary (again, can you work out what it is?)

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The Turing machine table and Turing machine instructions featured are from Turing's classic 1936 paper "On Computable Numbers" which I have had the pleasure of getting to know well recently :-)

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#Turing50 is a great choice but many amazing scientists were shortlisted. Here's the person I nomimated during the open process - Paul Dirac. He is best known for the Dirac equation that combines quantum mechanics with special relativity.

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Here are some of the other extraordinary scientists from the shortlist

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And more: