Monthly Archives: April 2023

Postcards and encryption

While I was down the Charles Babbage and the Crimean War rabbit hole, I came across a couple of coding cribs designed to allow people using postcards to encode the message written on the cards. You see, when postcards were … Continue reading

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Codes, the Crimean war, and a hint of incest

Today’s been wet. Too wet for a walk or gardening, and of course a bike ride is out of the question for a day or two until a replacement tyre arrives in the mail. So, I’ve been off down an … Continue reading

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