10. Blue Traffic Signals
What it is: traffic signals that are blue rather than green.
The 1930s saw the invention of
The average cost is $7,500.
In the United States, most of us would stop our cars if we saw a traffic signal turn blue. They never stop in Japan. The rationale for the blue traffic lights instead of the green ones over there is related to the Japanese language. There were words in the Japanese language from hundreds of years ago to describe black, white, red, and blue.
Salaryman/Shutterstock/1024 Blue Traffic Lights
The same word, ao, used to describe blue was also used to denote everything green.Even after midori started to be used for green, it was still regarded as an AO hue. Blue go-lights were produced by the two overlapping.
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