Posted on 06/27/2021 10:07:34 AM PDT by DUMBGRUNT
Color is to the eye what birdsong is to the ear: a primal communion between ourselves and nature.
The Middle Ages saw further expansion of available colors for artistic and decorative works. A handbook from the 1390s contained recipes for five different pigments of red, six of yellow, seven of green and a variety of blacks and whites. Another medieval writer described pigments with which to dye horses to increase their value. During the 15th century, painters began blending pigments with linseed or other oils, yielding glossier, more multitextured surfaces than their predecessors’ egg-tempera works.
European easel painting into the 19th century, long after its deleterious health effects were known. Nevertheless, by century’s end, the U.S. was producing 70,000 tons of the stuff every year, much of it slathered onto houses. Nontoxic alternatives, such as calcium carbonate (chalk) and zinc white, were not as durable, and were more expensive. Mr. Rogers provides a lively account of the discovery, production and marketing of titanium dioxide, the predominant whitener in modern paints, paper, pottery, pills and sunscreen. The pursuit of white is a lucrative business, he adds, with titanium white pigment accounting for $18 billion in world-wide sales each year.
. There are delightful disquisitions on the patois of color (why do Homer’s epics call the sea “wine-dark”?); the uproar within the artistic community over Vantablack, a proprietary carbon-based substance said to be the blackest synthetic material ever made; and “The Dress,” the viral internet image from 2015 that some viewers saw as black and blue and others as white and gold—this “memetic frenzy,” Mr. Rogers writes, upended established ideas about color perception.
...Whether you’re feeling blue, in the pink, or green with envy, Mr. Rogers sheds light on the meaning of color in our lives.
(Excerpt) Read more at wsj.com ...
I've been fascinated by pointillism but never jumped in, this might be a fun read? www.worldcat.org Shows it available at a nearby library but checked out.
A companion video. Adam Rogers | Full Spectrum: The Science of Color and Modern Human Perception https://youtu.be/E7M2Dm1tE0U
FULL TXT:
https://archive.vn/8nOjt
—”Mr. Rogers...”
Same mother, different brother?
I don't know if this is an error in the book or merely the review:
(Trichromacy is absent in people with red-green color blindness, who are born with two functional color receptors instead of three.)
Most of the colorblind are anomalous trichromats. The have three types of cones, but one is either weak or the red and green are too close in wavelength which weakens color perception.
This picture was taken near Moscow in 1910. It was made by taking 3 pictures . Each one with a different color filter then combining all 3.
Those are amazing photos.
Blue-Black Or White-Gold? What Color Is The Damn Dress!
https://www.scienceabc.com/humans/blue-black-white-gold-colour-damned-dress.html
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