This summer I have been walking to work in the morning during twilight just
before the sun rises.
As I walk across asphalt paved streets which are old and cracking,
sometimes I see very faint bands of colour
in my peripheral vision when I am looking at the pavement. When it happens
I am walking roughly southward ( at 46 degrees north  latitude) and the
bands seem to appear on the left side of my peripheral vision. The colours
remind more of those found in the Goethe spectrum rather than the rainbow
spectrum. I wondered if it might be an effect of LED street lighting
reflecting off the pavement but sometimes it seems to arise far from any
LED street lights. Has anyone else experienced this?


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