Word: emits
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Dates: during 1990-1999
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...that the orbit of Mercury wobbles in a certain way -- were confirmed within just a few years, convincing scientists that relativity was a revolutionary discovery, not just a mathematical curiosity. But Einstein thought another of his claims would never be proved. His theory predicted that fast-moving, massive objects emit gravity waves, small distortions moving through the fabric of space and time. Einstein said these waves would be virtually undetectable, and it was not until a few years ago that physicists began their so far futile search for the elusive ripples...
...miles) to rule out false signals from, say, local earthquakes. Each L-shaped installation will consist of two pipes 4 km (2.5 miles) long, set at right angles to each other and emptied of air. A laser, placed at the intersection of the pipes, will emit a beam that is split into two parts, each of which will bounce back and forth between suspended weights and finally return to the intersection. There the beams will be recombined, and a detector will examine them for slight distortions that will reveal whether movements of the weights have forced one light beam...
...federal truth-in-advertising and mail-fraud laws. But these weapons have generally been used just against products that are truly outrageous. The Postal Service, for example, took action against diet sunglasses, which supposedly altered food color and made meals appear less appetizing, and a satin headband designed to emit electromagnetic waves that, according to the manufacturer's claims, help customers refuse to eat calorie- laden foods...
...least a 15% reduction in the production of ozone-destroying chlorofluorocarbons. But Washington is letting the four CFC manufacturers decide how to allocate the pain; they can buy and sell CFC production rights. Senator Wirth thinks that global warming could be countered by international trading of permits to emit carbon dioxide and other greenhouse gases...