Word: discovering
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Dates: during 1980-1980
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James Moriarty, a University of San Diego marine archaeologist, identifies it as a so-called messenger stone, probably of ancient Chinese origin. Such a stone could be sent sliding down an anchor chain, via the hole, to strip away accumulations of seaweed. Another stony relic, discov ered five years ago off Los Angeles by two sports divers, Wayne Baldwin and Robert Miestrell, also hints at an early Chinese presence. To Moriarty and his assistant, Archaeologist Larry Pierson, it looks very much like the type of mill stone known to have been used by Chinese sailors as anchors...
...center of dispute was a new human-made variation of the common bacterium Pseudomonas. While working at General Electric's Schenectady, N.Y., labs in the early 1970s, Indian-born Microbiologist Ananda M. Chakrabarty made a significant discov ery. Chakrabarty knew that cer tain bacteria are able to break up hydrocarbons. What he found was that the genes responsible for this capacity are not contained in the bacterium's single chromosome, or principal repository of DNA, the genetic times Instead, they reside in small, auxiliary parcels of genes, called plasmids, elsewhere in the cell. Taking plasmids from three...