Word: core
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Dates: during 1930-1939
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...Millikan won a 1923 Nobel Prize. Last week two other Caltech men-Jesse W. M. du Mond and Harry Kirkpatrick- reported the perfection of another device, to measure the speed of electrons moving within atoms. A serviceable description of the structure of an atom is this: At its core are, according to the particular kind of atom, 1 to 238 protons (positive charges of electricity). The hydrogen atom (simplest) has one proton at its nucleus. Helium (next simplest) has four nuclear protons. But two are herded into inaction by two nuclear electrons. This leaves two positive sports on the helium...
...upheaval was recorded here at 6.06 o'clock, which corresponds to early Wednesday morning in New Zealand. The waves, in their progress to Cambridge, had to travel some 9,000 miles; and in the course of their long trip they penetrated the central core of the earth, which is about 1800 miles below the surface...
While doubtless fine equipment is a great attraction of American colleges, the universities of the Reich have much to offer other countries. Of profound significance is the "tough intellectual core" of German education which Dr. Flexner believes an antidote to the miscellaneous character of American curricula. Students there are trained in fundamentals and are steered away from any specialization which tends toward a vocation. Furthermore the acquirement of knowledge is a matter of self-discipline and individual responsibility to the German undergraduate rather than the too-frequent American custom of coaching from the dean's office...
Upon that stipulation, however, was seen the ultimate wreck of his peace offer, because Unionism had become the core of the Danville fight...
...cause of Addison's disease. The glands are two small bodies, shaped like cocked hats and one perched at the top of each kidney. Each gland is made up of a cortex or rind and a medulla or pith. The two are inseparably united, more so than the core and pulp of an apple. Medulla and cortex have different embryonic origins. The medulla originally buds off from the same cells which provide the sympathetic nervous system. The cortex begins in the same cells whence the urogenital system derives. During the past three or four years various investigators have shown...