Flashing lights on emergency vehicles were invented by Nazi Germany in 1933!

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You certainly take many small things in everyday life for granted ... so for example that police cars, ambulance cars, and fire engines have flashing lights. But did you know that the concept of flashing lights was invented in Nazi Germany already in 1933? What color scheme do the emergency vehicles in your country use?
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You sure that’s true? From what I know, it was chosen for it‘s good visibility in traffic compared to red and white lights. Also they weren‘t really expecting enemy bombers at that time I believe…

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