Word: filter
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...Angeles' sunshine has made the atmosphere the most ozone-laden in the world: as high as 80 parts per 100 million parts of air. The solution to the Los Angeles smog problem, according to the Stanford scientists: find out which materials react with the sun to form ozone, filter them out before they reach the open...
...total eclipse can be shot with fast black and white film using a one-second exposure and f/4·5· Color film calls for one second and f/2. These settings will show the horizon faintly as well as silhouettes of nearby objects. The partial eclipse requires a filter (Kodak neutral density 4.0), 1/100 seconds and f/16 for black and white film...
Away from the path of totality, the sun will seem to shine almost as brightly as usual, but if it is looked at through a dense filter (smoked glass or an overexposed photographic negative), it will show a bite taken out of its disk. At St. Louis the moon will cover a maximum 85% of the sun's surface, at New York 74%, at Columbia, S.C. 65%. Total time between the beginning and the end of the unusual show will be about two hours...
...shook Detroit by calling fellow members of the city council "a lot of jerks") announced that he would run for the Democratic nomination for Senator. McNamara would never have taken that step if he thought his opponent would be Soapy Williams. Within a few hours, the word began to filter through political channels: Williams, who hopes to see his name on the Democratic national ticket in 1956, had decided to seek an unprecedented fourth term as governor. The Williams-blessed candidate for Senator will be former Senator Blair Moody, the newspaper correspondent (Detroit News) who was appointed to Arthur Vandenberg...
Cincinnati is also busy with air samples. A paper filter exhibited at the center last week was black with filth from local air, which had been sucked through it. Doctors have seen that the city's curve of smog concentrations matched the curve of deaths from heart and respiratory disease. Each day the center receives filters, coated with air pollutants collected by the same process in 23 other U.S. cities, for analysis and comparison. Right now, the Fort Worth filters are tan from wind-borne topsoil. Those from Detroit and Los Angeles show that, at rush hours, the lead...