Word: emitted
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...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...
...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...
...reduce pollution would be to get stoves to burn at higher temperatures so they would emit less waste. Manufacturers have developed smaller, more efficient stoves. But poor burning practices abound. Homeowners sometimes toss green, moist wood into their fires, along with rubbish and newspapers. (The EPA recommends wood that has been air-dried at least a year.) Mark Loding, a chimney sweep who practices his Dickensian craft in the Charlevoix-Petoskey-Harbor Springs area of Michigan, is appalled by the fire making habits of his customers. Says he: "Chimneys are clogged with nasty stuff. People are putting in too much...
...basic mechanism of lasers is now familiar: they emit a concentrated stream of intense light powerful enough to melt metal. Experimental U.S. lasers have tracked and destroyed small missiles in flight; last May in California the Airborne Laser Lab was 5 for 5 firing at supersonic Sidewinders. But a device powerful and precise enough to be practical for nuclear defense cannot yet be built...