Once upon a time ... the rotating mirror light
09/02/2022
If a bank is robbed somewhere today, the first thing you should do is issue an epilepsy warning before calling the police. This is because the strobe lights of modern LED installations on emergency vehicles make even Rammstein concerts look like a lantern parade on St. Martin's Day. It flashes blue, flashes white and fidgets yellow, so that even previously inconspicuous people suddenly tend to be photosensitive.
It used to work much more harmoniously: a light bulb and a parabolic reflector, which rotates around it and distributes the light in every direction in a wonderfully uniform, predictable and pleasant way for the eyes, have served the same purpose for decades. If a car was equipped with two lights, they never ran at the same speed, so that right and left sometimes lit up simultaneously and sometimes alternately. But whether the rotating mirror light would still have the intended signaling effect today is questionable. In today's traffic, it would probably be outshone by every xenon light cannon and every running light blinker.
