Word: strokings
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Holography, which employs laser light to produce accurate three-dimensional images, has long been used by engineers to study stresses in building materials and machine parts. Now one of holography's pioneers is developing a new use for the 30-year-old process. Physicist George Stroke, head of the Electro-Optical Sciences Laboratory of the State University of New York at Stony Brook, has found a way to use holography to see into crystals and view the arrangement of their atoms from inside...
...implications of Stroke's work are important. Scientists must know the three-dimensional structure of biological molecules if they are to understand fully how they are assembled and how they function. A primary means of obtaining this knowledge is X-ray diffraction, a process in which molecules are first crystallized, then examined by X rays. The data collected can be analyzed by computer and then used to draw elaborate "electron density" maps from which complex models can be built...
...Stroke's process, developed under a grant from the National Science Foundation, promises to make molecular structures visible. Stroke had been experimenting since 1963 with new ways to utilize holography. But it was not until about a year ago that he and his colleagues-Maurice Halioua, Venugopal Srinivasan and Raghupathy Sarma-hit upon their potentially revolutionary process. Explains Stroke: "We realized that a crystal, in which the atoms are arranged in a repeating array, can be made to produce a sort of hologram, a three-dimensional display of data. What we've figured...
Science alone cannot zero in on contemporary problems so easily. Most of the germ-caused diseases are well under congrol in the U.S.; the main causes of death now are heart disease and stroke, cancer, and accidents, homicide and suicide. Such ills can not be eliminated with simple drugs. They are not bugs inside the body--they are in fact hard to separate from the body, and are caused by factors like aging, stress, and hazardous chemicals in the environment. Relieving stress takes compassion. Keeping the environment clean requires social and political action...
...bone. The prow of a nose and the jutting underlip have a fierce antique gravity, like Renaissance portrait sculpture-one thinks of the faces of Verrocchio's Colleoni or Donatello's Gattamelata. Every cut of the chisel seems to possess the final, unlabored Tightness of a brush stroke by a master of sumi-e (ink painting). There is probably not a sculpture on view in America this week that gives a clearer impression of the mystery of great portraiture: how realism, a recognizable type and shape, can be conveyed through complete stylization. Like a Giacometti, the figure...