02 – Tommy Who?

Learn how the Germans used the Lorenz machine (the Tunny) to send secret messages using a binary code and tapes

Use this topic to introduce students to data analysis. Students will write a class questionnaire and analyse this data to identify a need. Sketch a design for their new machine, and consider the resources needed to make their creative idea a reality.


Jump to another topic

  • 01 - The GPO - The Heart of Communication

    Learn how General Post Office engineers worked hard to build Colossus and discuss the skills needed to be an engineer.

    Read more
  • 03 - Building Colossus

    Learn about the original blueprint for Colossus, how to read a map, design a blueprint and make a scale drawing.

    Read more