Word: pigment
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...photographs of the tiny panels make them look like murals-they are among the most important paintings in the world. The Brothers van Eyck (Hubert 1366- 1426; John 1385-1441) used to be known as the inventors of oil painting. That they were not; oil as a binder for pigment instead of white of egg was used tentatively long before they were born. But they were major masters of the Flemish school, they popularized oil painting throughout the world and-what endears them most to dealers and collectors-they left precious few pictures behind them. Fewer than 20 genuine...
Carotene is a yellow pigment found in carrots and some other plants. In the human liver it becomes Vitamin A, hence has been dubbed "primary Vitamin A." Scientists agree that Vitamin A is essential to growth. Because an experimental animal deprived of it is susceptible to infection, some wishful-thinking investigators have assumed that Vitamin A is also "anti-infective," have cried it up as a weapon against respiratory infections. Experiments have by no means substan tiated their claims. Researchers in Manhattan lately reported that children dosed with Vitamin A (in fish liver oils) and "primary Vitamin A" had proven...
...from the "Kermes berry." Kermes is not a berry at all but a bug - a reddish, wingless female insect, relative to the cochineal of Mexico, that lays its eggs on oak leaves throughout southern Europe. The insects are killed in a vapor of hot vinegar, dried, and ground for pigment. It takes 10 to 12 lb. of kermes to produce as red a color as one pound of cochineal. The Louvre lady's lips are of cochineal, unknown in Europe before Cortes brought it back in 1523, unknown in Italy for 20 years more. Leonardo da Vinci died...
...chemists have studied reactions using water as the solvent but Conant has found that hitherto obscure reactions are brought to light when either or some other substance is substituted for water. One of the problems which has interested him in this connection has been the study of the blue pigment in the blood of horseshoe crabs...
...effects, mysterious lumps and sworls, curious beasts, grotesque faces, incised lines like vines and tendrils. Not a few were extremely effective. Outstanding fact about these colorful patterns was that they were produced not by brush or other tool but by the children's own chubby hands smearing liquid pigment on paper...