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Why are you posting this? It doesn't appear related to the OP insofar as they are both encountered in Berlin.

Also this clock design seems unnecessarily inefficient. Why divide 24 hours in multiple of 5 hours instead of the much more natural 6? This way it would be a lot easier to decode AM/PM.

I realize that it's about art more than practicality but I don't really understand why that encoding was chosen.

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I think it has to do with design. They wanted to make the two top rows have the same amount of lights. Using 6 would mean one row of 6 lights and one of 4. 5^2 is the smallest square that provides enough values to fit 24 hours.

Why not? The post is about weird artifacts in Berlin. This clock may be the key to solving a crypto puzzle.

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