With this fun challenge, brought to you in partnership with the Science Museum Group, you and your child can learn how to make a cipher wheel together and use it to send secret messages to one ...

It's possible to make a 'cipher wheel' that represents how many steps shifted a cipher is, making it a little easier to translate an encrypted message back into something readable. You can ...

Now that you have this code, go to the end of the room opposite the entrance and then turn left to see the Cipher Machine. You will need to set the Code Wheels found around the machine to the ...

In 1854, Sir Charles Wheatstone invented the cipher known as "Playfair," named for his friend Lyon Playfair, first Baron Playfair of St. Andrews, who popularized and promoted the cipher.