Word: calcium
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Dates: during 1930-1939
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...analyze the spectra. Last week Harvard's Dr. Peter Mackenzie Millman proudly reported that he had spectral pictures of nine meteors. Six, possibly seven were mostly stone. All contained some iron (heated to vapors of between 2,600° and 4,600° F.). One or more contained calcium, manganese, aluminum, chromium. Three containing magnesium burned greenishly...
...worked with the Research Foundation to develop the irradiator. The Foundation is to commercialize it, license its use to dairies, just as it licenses Professor Steenbock's irradiation methods to drug and food manufacturers. The importance of Vitamin D lies in its power to make the body use calcium and phosphorus. The natural source of Vitamin D is the skin when exposed to the ultraviolet rays of sunlight. Civilized people living in northern latitudes get insufficient sunlight, hence insufficient Vitamin D. The deficiency shows up in the bones as rickets, in the teeth as decay. Primitive northern people...
...doctors and dentists that they have been able to produce or prevent tooth decay at will in practically any rat, by regulating the amount of phosphorus and Vitamin D in the diet. Now they are confirming their work on 450 Ontario children. The children get their phosphorus, vitamin and calcium, which they also require, in milk, fresh vegetables, fish oils, irradiated foods...
...Health, But that did not settle the question about keeping healthy & wise. Professor Henry Clapp Sherman of Columbia University settled that point. Babies are born with sufficient iron and copper in their blood and livers to keep going for quite a while. But calcium, which babies need for bones, they must get from mother's or a cow's milk. If a baby takes too much calcium from its mother. she must replenish her supply by eating calcium-bearing foods. Otherwise her teeth may decay, her bones ache, her resistance to disease decline. Thus calcium (lime) is the mineral which...
...Samuel Clark Harvey, professor of surgery, could learn how broken bones mend. Last week he presented a summary of his study. On a normal diet the rats' legs show some strength the sixth day after the break. Strength increases rapidly until the 15th day, during which tide calcium and phosphorus salts are deposited. Then for six days the new bone loses up to 30% of its strength. After the 21st day the bone again grows stronger, healthier, until completely healed...