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Not sure I'm following your thinking here; what light sources are you unclear about w/ regard to their status as artificial or not?
by wjb3 2y ago
Not sure I'm following your thinking here; what light sources are you unclear about w/ regard to their status as artificial or not?
- 1oooqooq 2y agomost literature makes distinctions on blue, red lights for sleep impact. they just named it artificial night light, even included the moon there.