Light/Colour

https://ourworldindata.org/light  Light, (general)    light good when dark? good for preventing vandalism? not good for sleep?... But good for safety? Remember that study of side streets being dangerous and that? Alley ways or BENCH which was not lighted up Optics, light.. lighting Light … OR ABSENCE OF LIGHT… PERHAPS LIVE IN EXTREMES… 6:1 RATIO WORK 6 DAYS REST 1 DAY

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Lightning Planet https://www.lightningplanet.com.au/
Disclaimer/ ~See sources outside of Hollutions for more information about topic e.g. Professionals like Doctors, Lawyers, etc.
INTERESTING APPLICATION OF LIGHTS USED AT HOUSE PARTY
Water + bleach + on roof in contact with sun? = light?
Plants like go from green to red? Look at light spectrum roygbiv..