Word: differences
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Dates: during 1930-1939
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...tiny high pressure laboratory, Professor Bridgman has produced forms of bismuth, gallium, calcium, strontium, barium, and cesium which have never been seen before. As in the case of red and yellow forms of sulfur that are seen under ordinary pressures, he has made forms of these elements that differ from their usual forms in appearance and in physical properties...
...distilling vessel is pumped out leaving such a high vacuum that practically none is left, molecules flying off a hot distillate have "free paths"-that is, they are not interfered with in their flight. The free paths of molecules differ with their weight. Hence, by adjusting the distance between the hot surface of the distillate and a cold condensing surface, molecules can be separated by weight. "Dr. K. Hickman," said Dr. K. Hickman last week, ''began experiments in high-vacuum distillation in 1927. In 1931 he constructed the continuous molecular still and was able to separate from...
...Members of families migrating from Europe to reside in America become some-what modified and in one or two generations, differ from their European, cousins in much greater ways than occur among those members residing in the same country. These differences are probably due to modified reactions of the endocrine glands which act to adapt our internal environments to the changed external conditions of climate and food. Such mechanisms are our means of adaptation in maintaining a normally balanced internal chemistry. Different climatic, meteorological, light and other effects on one's own personal well being and activities may often...
Mechanical engineering is also a basic profession in modern industry. It is concerned with such activities as the development and transmission of power, the design and construction of machinery, and the operation of industrial plants. Although the subject matter of mechanical and civil engineering may differ greatly there is much overlapping of interest and both share the principles of applied mechanics as a common basis...
Yesterday Brooks indicated that although the Register will not change in form or content, the Red Book will differ in color plan from books of former years...