Switch to the dark mode that's kinder on your eyes at night time.

Switch to the light mode that's kinder on your eyes at day time.

Switch to the dark mode that's kinder on your eyes at night time.

Switch to the light mode that's kinder on your eyes at day time.

This Day in History: 2020-11-22

(Died on November 22, 2020)
Otto Hutter, Austrian-born British physiologist (b. 1924).

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