police lights blue and white only no more red? anyone know why or what the meaning is? Submitted by [deleted] t3_ytix0r on November 12, 2022 at 9:30 PM in Pennsylvania 41 comments 1
Odd_Description_2295 t1_iw4j5sn wrote on November 12, 2022 at 10:18 PM The way our eyes adapt to the dark. Its actually "easier" for human eyes to see blue light spectrum at night. Whereas red light is more pronounced during the day Permalink 1
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