In-bed light reading

I stumbled upon this one at a book swap today!

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(And yes, red-lights for the win after sunset)

100%

Here in BA they recently replaced street lamps with cool white LED lamps (blue not red wavelengths), another insult to the population

Fun fact, Google Bletchley Park and enjoy the animation 💜

Oh damn! Cool!

That's a good book!

Another in the same vain:

Gordon Welchman: Bletchley Park's Architect of Ultra Intelligence

I'm big on cryptography/cryptanalysis history.

Thanks for the recommendation!

#[3]​ add this to my reading list under “cryptohistory books”

Good stuff! Wonder if it mentions On the Roof Gang at all?

Hope that is a red filter and not a fancy night stand lamp or you will go blind lol