Did you know that? Eigengrau, also called Eigenlicht, dark light, or brain gray, is the uniform dark gray. Scientists believe that Eigengrau is the colour that human eyes see in perfect darkness and this is said to be the result of "visual signals from optic nerves". . To check this, cover your eyes if you are in a bright room or outside. Now open them quickly and look at a black object. Now it may take you a few tries to fully see it, but you’ll soon notice that the black object appears darker than the black of total darkness. . Follow @atomstalk . . . . #facts #factsgram #factsandscience #factsoftheday #sciencefact #sciencefacts #humanfacts #humananatomy #humaneye #humaneyes #interestingfact #interestingfacts https://www.instagram.com/p/CHMkvvDDqPX/?igshid=1tgtp0xzsyven