Word: problem
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Dates: during 1930-1939
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...York Stock Exchange. For the holding company, although often used as a slick device for controlling other people's money, is a practical solution to the problem of carrying on interstate commerce under 48 varieties...
...States-which Germany may soon join-were furnished last week by Yugoslav Premier Milan Stoyadinovich who turned up in Berlin the day after Colonel Beck. "We are," declared Stoyadinovich, "aware that Germany plays a decisive role in the Danube basin and that no solution of the so-called Danube problem can be achieved without German co-operation...
Harvard settled the troublesome problem of its scrubwomen's low pay several years ago by employing scrubmen at low pay. Last week, however, the university was negotiating with the A. F. of L., which was organizing kitchen workers, scrubmen, maids. Yale, meanwhile, had its hands full of C.I.O...
When extracted from the plant, chlorophyll as a catalyst is no longer effective. Scores of laboratories working on the problem of imitating natural photosynthesis have tried other catalysts, but none works so efficiently as chlorophyll. Some ten years ago at the University of Liverpool, Professor Edward Charles Cyril Baly obtained formaldehyde, sugar and starch from carbon dioxide, water and artificial white light, using nickel oxide as a catalyst, but in tiny quantities and at low efficiencies...
There is no practical reason now for harnessing the sun's energy. But should the problem become urgent, because of depletion of the earth's supply of coal and oil, it would be possible to use huge shallow tanks of water and carbon dioxide for solar power plants if a catalyst as good as or better than chlorophyll could be found. Meanwhile Dr. Baly is considered in many quarters to be the world's leader in artificial photosynthesis of organic substances...