rik@ucla-cs.UUCP (11/17/84)
%A Samuel H. Preston %T Children and the Elderly in the U.S. %J Scientific American %V 251 %N 6 %D December 1984 %P 44-49 %Z The well-being of elderly people has been improving, while that of children has declined sharply. %A Richard G. Brewer %A Erwin L. Hahn %T Atomic Memory %J Scientific American %V 251 %N 6 %D December 1984 %P 50-57 %Z Some atomic systems seem capable of overcoming entropy: they can regain apparently lost order. %A Corey S. Goodman %A Michael J. Bastiani %T How Embryonic Nerve Cells Recognize One Another %J Scientific American %V 251 %N 6 %D December 1984 %P 58-66 %Z They may follow pathways marked by molecular codes. %A John Monforte %T The Digital Reproduction of Sound %J Scientific American %V 251 %N 6 %D December 1984 %P 78-84 %Z This technique produces superior recording by representing sound as a series of binary digits. %A Philip H. Brownell %T Prey Detection by the Sand Scorpion %J Scientific American %V 251 %N 6 %D December 1984 %P 86-97 %Z Structures on its legs act as sensitive seismometers that pick up minute vibrations in the sand. %A Ye. A. Kozlovsky %T The World's Deepest Well %J Scientific American %V 251 %N 6 %D December 1984 %P 98-104 %Z A 12,000-meter-deep well is providing a direct look into 1.4 billion years of geologic history %A Lynn A. Cooper %A Roger N. Shepard %T Turning Something Over in the Mind %J Scientific American %V 251 %N 6 %D December 1984 %P 106-114 %Z In imagining manipulations of objects the mind imitates events in the real world. %A John D. Harbron %T The Spanish Ship of the Line %J Scientific American %V 251 %N 6 %D December 1984 %P 116-129 %Z The most awesome warship of its day, the Santisima Trinidad had 144 guns and a crew of 1,200.