Word: clouding
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...115th lap Johnnie Parsons was back in front again. Before the race Johnnie had asked his pit crew to watch the sky for signs of rain, give him the high sign (two vertical arrows) on the communications blackboard in his pit. Johnnie caught sight of the big black cloud at about the 300-mile mark, before his pit crew...
According to Langmuir's theory, silver iodide particles in the right amount will turn a cloud of supercooled (below freezing) water droplets into snowflakes. The flakes sink to warm lower levels, melt and fall as rain. But if there are too many iodide particles competing for the moisture in the water droplets, the snowflakes formed are too small to fall. They may even rise, drifting off as thin cirrus clouds that never yield any rain...
...United States Weather Bureau isn't convinced. Despite extravagant publicity in the press, Harry Wexler, chief of the Bureau's Special Scientific Services Division, says flatly that "it has not been demonstrated that cloud seeding is a factor in producing a significant amount of precipitation." In nine months of its own tests in Ohio the Weather Bureau got few results unless there was natural rain within 30 miles, none without natural rain within 40-60 miles. According to Wexler, the New Mexico tests were inconclusive. Rain occurred somewhere in the state whenever the researchers operated, and also when they...
Across South Amboy windows burst into hurling, razorlike shards. Plaster crashed down from ceilings, doors blew in, walls bulged. The lights went out. All over town, the clocks stopped at 7:26. River mud, coal and metal fragments hurtled down from the sky. From the docks a huge mushroom cloud rose grey-white and languid...
There was only one cloud to mar the horizon. The tea ration, announced Food Minister Maurice Webb, would soon be cut from 2½ to two ounces a week...