Word: compounded
(lookup in dictionary)
(lookup stats)
Dates: during 1940-1949
Sort By: most recent first
(reverse)
...cannot always have new ones made of flesh-&-blood grafts. At the Mayo Clinic, Dr. Arthur H. Bulbulian, a trained sculptor, molds artificial noses and ears so rosy and translucent that only an eagle eye can spot them as fakes. Dr. Bulbulian uses "prevulcanized liquid latex," a creamy rubber compound, which can be tinted delicately before it hardens...
...British chemist named Greville Williams broke down natural rubber by distillation, obtained a hydrocarbon compound called isoprene. In 1882 William Tilden, also of Britain, made isoprene by .racking turpentine vapor in a red-hot tube...
...made one last plea for speed: "Immense values are at stake and time is limited."Calm and proud. Someone has said that though most human bodies are composed of oxygen (65%), carbon (18%), hydrogen (10%), nitrogen (3%), calcium (1.5%), phosphorus (1%), the body of a Frenchman is a simple compound of pepper, garlic, pate de foie gras, common bread and good red wine of the land. The French are pungent people. Little things make them gesticulate wildly and pour maledictions like a flood: a bowl of soup upset, a bus missed, a kiss refused. But big things-the Battle...
Crucially dependent on chemistry is quantity production of high explosives. When World War I broke out, Britain's standard propellant for shells was cordite, a nitroglycerin-nitrocellulose compound whose manufacture requires acetone. Best-known way of making acetone was to distill wood-a costly, low-yield process. When British cordite production hopped up to 4,000,000 lb. a week, all the wood in the world began to look meagre and the War Office was desperate. Acetone was skimped in making cordite, with the result that, in a naval engagement off South Africa, British shells glumphed dismally into...
Emission of light by living things is a chemical reaction requiring oxygen. Many luminescent creatures secrete an easily oxidizable compound, luciferin, which is oxidized with the help of an enzyme, luciferase. The exact chemical nature of luciferin and luciferase varies from species to species-firefly luciferin, for example, is no good when mixed with luciferase from worms. The reaction may occur in special gland cells, or the animal may eject luminous material. Some deep-sea squid throw off luminous puffs to confuse attackers, but this dodge is not always effective...