Word: acidity
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Dates: during 1940-1949
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...nearly 200,000 scattered acres of tung plantations, out of 750,000 acres believed to be suitable for the culture. But the tung tree is hard to raise in U.S. soil and climate. It needs a minimum of five, a maximum of 15 days of freezing weather; virgin, acid soil; good drainage and a hillside location. It should have at least 40 inches of well-distributed rainfall each year...
FIVE ALARM FUNERAL-Stewart Sterling-Putnam ($2). Criminally induced holocausts in New York City, as well as several murders, a spot of acid hurling and dirty work among the smoke-eaters, are all traced to the proper parties by Chief Fire Marshal Ben Pedley. Refreshing new scene, robust talk, unflagging action, and a completely cockeyed motive-which readers may ignore without spoiling the yarn...
...around one electrode is illuminated and the other is kept dark, the system becomes a galvanic cell in which chemical energy, formed by the conversion of light, is itself immediately converted into electrical energy." Galvanic cells and batteries-usually making current from the slow dissolving of zinc in sulfuric acid-are not uncommon, but Rabinowitch's is unique in that it will never wear...
Texas researchers last year found that royal jelly, the substance secreted and fed to the queen bees by the workers, is two and a half to six times richer in pantothenic acid-a vitamin of the B complex-than yeast or liver. Hambleton believes that pollen will prove to have a similar content, may soon become a major source of vitamin extracts...
Etchings, printed from copper plates in which a design, drawn by the artist, has been dug out by the corrosive action of nitric acid. He starts by giving his copper plate a coat of beeswax, scratching his design in the soft wax with a needle. Copper, exposed where the wax has been scratched away, is then eaten away by acid. Parts still covered with beeswax remain uneaten. When the acid bath is over, remaining wax is rubbed off and plate is ready for printing. In Drypoints, which look like etchings to the uninitiated, the artist scratches his design right...