Word: intersections
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...across a controller's green radar screen as a blip of light in the middle of a round white "halo" or "doughnut," representing an area that has a diameter of five miles. The aim of the controllers is to "keep green" between the doughnuts. Whenever two circles begin to intersect, indicating that two planes have violated the horizontal separation standard of five miles, an alarm sounds, the doughnuts flash and a teletype clacks out the incriminating data. The controller must file a report on the incident, as must the pilot if he is suspected of being at fault. Anyone found...
Boston is an old town, its narrow streets not neat grids like Kansas City's. The streets wind, end in cul-de-sacs, curve back on themselves, disappear, intersect by the sixes and sevens at rotaries. Their direction is fluid and changing. An outsider, carefully learning that Charles Street is one way this way, returns a year later to find it that way. Overhead traffic signs are terse, grudging and lacking in true meaning. Street signs are usually placed only on cross streets, leaving unnamed the street upon which one is driving...
...asteroids at least 1 km (.62 mile) in diameter have been cataloged. In addition, about three earth-crossing comets are detected each year. From the rate at which new earth crossers are discovered, Shoemaker estimates that there are some 2,000 asteroids in this category and that 100 comets intersect the earth's orbit every year...
...CERN, Fermilab and the Stanford Linear Accelerator Center. Whizzing past each other, the SSC's two opposing beams, consisting of closely packed bunches of about 10 billion protons each, would complete about 3,000 laps a second. In four to six places around the ring, the beams would intersect, producing up to 100 million collisions a second. At each collision site, a highly sophisticated detector at least three stories high would be needed to sense and record the impacts, telltale debris and any newly created particles...
Almost all of the people intersect in some way. But these conjunctions, meant to be an inspirational example of how all mankind is bound together, can sometimes seem forced and almost irrelevant...