Word: emits
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Dates: during 1980-1989
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...reason for the growing popularity of tanning salons is an advance in technology. Old-fashioned sunlamps emit strong doses of ultraviolet radiation, which can cause a quick sunburn if one is not careful. New tanning machines, however, block out most of the sunburn-linked beta rays (UVB) in favor of alpha rays (UVA), which promote a more gradual tan. The most popular device for soaking up UVA is a clamshell-like tanning bed. The customer lies down on a Plexiglas surface, closes the lid and relaxes as lights from above and below bake him to a golden brown...
...remnants of pulsars rotate and emit radiation at their magnetic poles. Whenever one of the poles turns toward the line of light from the Earth, a pulse of radiation is received. The phenomenon is comparable to the pulse of light emitted by a lighthouse beam...
Although the pulsars often emit weak signals, scientists use radio signals to learn more about them. Scientists also get data from recently taken satellite photographs of the phenomena...
...facility already delivers steam and chilled water to a handful of Harvard-affiliated hospitals, but nearby residents have blocked use of its diesel generators to create electric power because they contend the engines emit carcinogens. Robert H. Scott, Harvard's administrative vice president, says an August 24 report from the state's hearing officer indicates "no problem of any kind" with approval, although the University may be forced to abide by some operating restrictions...
...objects emit radiation, but not all radiation is visible, and sub-millimeter waves cannot be seen with the naked eye. Moreover, sub-millimeter waves do not even reach Earth because they are absorbed by water vapor in the atmosphere...