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Showing posts tagged history of science

furtho:

George Mayerle’s eye chart featuring characters in English, Chinese, Japanese and Russian, as well as symbols for children or illiterate adults, 1907 (via The Verge)

"Across the bottom, boxes test for color vision, a feature intended especially (according to one advertisement) for those working on railroads and steamboats." Read all about it.

furtho:

George Mayerle’s eye chart featuring characters in English, Chinese, Japanese and Russian, as well as symbols for children or illiterate adults, 1907 (via The Verge)

"Across the bottom, boxes test for color vision, a feature intended especially (according to one advertisement) for those working on railroads and steamboats." Read all about it.

(via dooooq)

Many wonderful cicada illustrations from A Monograph of Oriental Cicadidae, 1889-1892

(via Scientific Illustration)