Today we started our session with two more curly questions: 1. What can you do with a brick? 2. List as many jobs as you can think of that don't exist yet, but will in the future.
It was fun to discuss our answers. We noticed that as soon as we begin to pool our ideas we can think so much more broadly.
We had a look at the Khan Academy website, where you can learn anything. In the applied maths section there is a whole series on Cryptography, including its history and a chance to try it out.
We watched the videos and discussed the Caesar cipher, how it was broken, frequency tables, and how to make it harder to decrypt. We also used the cipher to create our own coded messages.
What is cryptography?: What is Cryptography? A story which takes us from Caesar to Claude Shannon.
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