CANCELLED Holiday workshops: The enigma of cryptography (age 13–15)

10.30am to 3.30pm, Monday 6 April

The Royal Institution of Great Britain GB United Kingdom W1S 4BS 21 Albemarle Street London

This event has been cancelled

  • Credit: Tim Mitchell
  • Type

    Summer Schools
  • Audience

    Age 13–15

  • Speakers

    • Tom Briggs


Standard £52

Ri Young Members £44

Event description

Due to the ongoing COVID-19 outbreak, this event has been cancelled. All attendees will be contacted to offer a full refund.

In this workshop with Tom Briggs, students will learn about different codes and ciphers that have been used throughout history, as well as some of the methods used to break them.

Students will work their way up from early military ciphers like Caesar shift until they end up at one of the most famous ciphers of all: Enigma.

In this workshop students will get the chance to interact with a real, working World War II Enigma machine – and then make their own to take home.

About the speaker

After 30 years as a nerd (including seven years as a mathematics teacher), Tom Briggs suddenly found himself in the ultimate geek job: traveling the length and breadth of the land in the company of an actual Enigma machine from World War II.

Together they spread the story of Bletchley Park's Codebreaking heroes far and wide and make the most of an excellent opportunity to spread enthusiasm for mathematics.

Please note

Please note, this workshop is strictly for 13–15 year-olds and will include a 45 minute supervised lunch break. Students will not be able to leave the building at lunch time unless permission is given at the time of booking. Students should bring lunch and a drink, pens, pencils and a calculator.

Discounted tickets are available to Ri Members. Find out more about how to join.

This workshop is based on Ri Masterclasses. Students who have attended a Masterclass series which included a session on a similar topic may have already seen some of the content in this workshop. Please contact us on with any questions.

Refunds can only be issued for tickets cancelled at least two weeks (14 calendar days) in advance of the event date. Please note that this supersedes our normal event terms and conditions.


Workshops are on the first floor of our building, for which there is step-free access from the street via lift.

The closest underground station is Green Park, which is step-free.

Seating is usually unreserved for our events. If you and your group require seating reservations, or if you have any other questions, please do let us know by email and we’ll be more than happy to help. Email:

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