Word: decays
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Dates: during 1980-1989
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...want to succeed to the throne of a divided Britain. It came out that the Prince, who has recently been depicted as something of a royal layabout, has actually been making clandestine visits to the homeless of London and seeking advice on how to remedy inner-city decay. Critics of the government applauded, while Conservatives gave indignant speeches protesting what they saw as a breach of the taboo against royalty dabbling in politics...
...mimic conditions at the earliest moments of the universe. It would enable physicists to probe fundamental mysteries about the origin of matter and energy and could help them achieve a long-sought goal: to weave the four known forces of nature--electromagnetism, gravity, the weak force (responsible for radioactive decay) and the strong force (which holds atomic nuclei together)--into a single, elegant, grand unified theory. Says Leon Lederman, director of the Fermi National Accelerator Laboratory (Fermilab), the high-energy physics facility near Chicago: "With the SSC, we are bound to make fantastic new discoveries...
...difference between a semi crashing into a small car and two semis crashing head-on." Some of the tremendous energy of those impacts is fleetingly transformed into strange particles that are thought to have existed in the very first moments of the universe. Before the unstable fragments decay back into energy and more familiar bits of matter, their feathery traces are recorded by detectors...
...preventive medicine, dentistry, more than any other, has put its money where its mouth is. The results have been astounding. Over the past two decades, the widespread use of fluoridated drinking water and toothpastes, along with improved dental care, has produced a 50% drop in the incidence of tooth decay. A further drop is imminent because of the growing use of sealants, protective resins painted on the biting surfaces of back teeth. According to the American Dental Association (A.D.A.), which recommends sealants for all children, they should virtually eliminate childhood tooth decay...
Ultimately, the dentist's principal instrument of agony, the drill, may be used less often because of a substance called Caridex 100, developed at Tufts University in Medford, Mass. Caridex, which is gradually being introduced around the country, is an amino-acid solution that dissolves tooth decay, leaving behind a clean, sturdy area that can be filled with little or no drilling. However, the method is not suitable for all cavities...