Word: occurs
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Dates: during 1970-1979
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Reporter-Researcher Janice Castro, who interviewed more than 150 players, pros and psychologists for the cover story, was surprised to find that "everyone I talked with instantly recognized the sexual tensions that can occur on the tennis court." Castro, who learned the game at De Anza High School in El Sobrante, Calif., has been able to play only sporadically since moving to New York. "It's hard to find both time and money to play tennis in Manhattan," she says...
According to Boston Psychiatrist Chester Pearlman, evidence from both Europe and America is making 1976 "The Year of REM Sleep." Scientists have long known that REM (for the rapid eye movement during periods of dream sleep, which occur three to five times a night in 20-min. segments) serves crucial needs. One of those needs, Pearlman told the Paris conference, has now been clearly identified: REM dreaming is essential to consolidate memories -no dreaming, no long-term memory...
Everybody talks about the weather, but nobody can do much about it even today. Short-range forecasting has improved enormously in recent years, even though squalls occur on days when the weatherman insists the precipitation probability is near zero. And despite great advances in techniques and technology, the discipline of climatology-the study of long-range trends in weather-is still an inexact science, to say the least. Climatologists still disagree on whether earth's long-range outlook is another ice age, which could bring mass starvation and fuel shortages, or a warming trend, which could melt the polar...
...Answers. Other scientists are studying the sun to determine if its energy output is constant and if there is any link between sunspots (caused by magnetic storms on the sun's surface) and droughts, which often occur every other time the eleven-year cycle of sunspots reaches its low point. Other investigations-of ocean and atmospheric circulation, the processes of mountain building, the influence of land masses-are all pointed toward a better understanding of global climate. That understanding is sorely needed. "Our knowledge of the mechanisms of climatic change is at least as fragmentary as our data," says...
...oxygen could not have been produced by photosynthesis which can only occur in the presence of light because light was absent from the experiment which detected the oxygen, Barghoorn said. He added that water was present when the oxygen was produced...