It's all about the e... • 7m
Garrett Morgan’s Traffic Signal Legacy . Garrett Morgan invented the traffic signal, but one key scientific point that got completely missed was that red-green is the most common form of color blindness in humans. Almost 8% of men are color blind due
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Just curious to know what is the use case of these lights in the Vande Bharat and Shatabdi trains? Few observations by me: 1. They are placed vertically while the seats are placed horizontally, why? 2. How can person seated on aisle side can use this
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