What's in a Color?Advanced-Level Science ProjectsChemistryWhat's in a Color?Copper Magic Are all colors created equally? Is the red dye in your favorite magic marker simply made up of red chemicals…
(Encyclopedia) Dewdney, Anna, 1965–2016, American children's book author and illustrator, b. Englewood Cliffs, N.J., as Anna Elizabeth Luhrmann, B.A. Wellesley, 1987. After illustrating adult and…
(Encyclopedia) Denison Dam, 17,200 ft (5,243 m) long, on the Red River along the Texas–Okla. border, NW of Denison, Tex. The dam, built by the U.S. Corps of Engineers for flood control and…
(Encyclopedia) Drew, Charles Richard, 1904–50, African-American physician, b. Washington, D.C. A surgeon and a professor at Howard Univ. (1935–36; 1942–50), he developed a means of preserving blood…
(Encyclopedia) BasmachiBasmachibäsmäˈchē [key], revolt against Communist rule in Central Asia by Muslims and bandits, 1917–30. The Basmachi fought a guerrilla war against the Red Army, leading…
(Encyclopedia) pigmentation, name for the coloring matter found in certain plant and animal cells and for the color produced thereby. Pigmentation occurs in nearly all living organisms. Almost all…
ProtistsOrigin of Prokaryotes and EukaryotesIntroductionOrigin of ProkaryotesEukaryote EvolutionProtistsSlime Molds Protists represent in excess of 100,000 species and are so varied in their…
HOW STRONG ARE BONES? ARE BONES DRY? HOW DOES A SKELETON GROW? BONEJOINTSFIND OUT MOREThe skeleton is the inner framework of BONES that supports and gives shape to the human body. It also protects…
(Encyclopedia) Grayson, Cary Travers, 1878–1938, American naval officer and surgeon, b. Culpeper co., Va. As a physician he entered (1903) the U.S. navy, was graduated (1904) from the navy medical…
