AtraposJM t1_j7xrlta wrote
Reply to comment by ozyx7 in TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23
Not sure this is true but I have a degree in graphic design and I had a teacher tell me that men see yellows and greens a little bit better than women do because when hunting they'd have to see movement in grass etc. Was told to be aware of over correcting for yellows and greens when colour correcting photos and things.
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