Word: nuclei
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Dates: during 1930-1939
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...number corresponded to the number of negatively charged electrons outside the nucleus. Element No. 1, hydrogen, has one such electron; No. 2, helium, has two; lithium, No. 3, three. . . . For each negative electron the nucleus of an atom must contain a positively charged proton. And, except in hydrogen, all nuclei were found to contain more protons than were electrons around them. The additional necessary electrons were found in the nucleus. Lithium, with three electrons outside the nucleus, must have a nucleus with a positive charge of three, and this positive charge may be made up in either of two ways...
...thought H² would be of no commercial use. It would give water different spectral color, new physical properties, but would not affect the taste. But since its nucleus is the simplest yet found consisting of more than one particle it would be a great aid in the study of nuclei, might add to data on the cosmic ray which Dr. Robert Andrews Millikan thinks is the energy re-leased by the building up of elements in the universe...
Under the supervision of Dr. Stanley Cobb, Dr. F. Fremont Smith and Dr. Hans Zinsser of Harvard's Department of Neuropathology, Dr. Morrison killed five dogs suffering from running fits, made histological brain examination. He found the nuclei of the brain cells broken into bits, with chromatin scattered throughout the cell body. He discovered also great clusters of spider and mossy cells of the neuroglia around the small blood vessels in the white matter of the brain. In normal tissue, these supporting cells should be distributed in rows throughout the white matter. Cell peculiarities of the type found...
...Stoehr device, striker bars are so fixed to a piano's keys that when a key is touched a code impression is recorded on a motor-driven music-roll. Thus the most idle vagaries, nuclei for many a major opus, may be preserved. Added feature is a portable keyboard superimposed on the piano keyboard (baby grand or upright) which mechanically and instantaneously transposes music into any desired key. Composing and transposing devices may be used together. A great boon should "Music Writer" be to the cinema industry. Heretofore composition for synchronized cinema has been a labor of weeks. With...
Frederick Simonds Hammett, Philadelphia biochemist who has studied tissue growth for eleven years, decided after experiments on more than a million nuclei of tissue cells that a sulphur compound was directly responsible for tissue growth, that another sulphur compound was responsible for stagnation of tissue growth which comes with old age. His principle is universal, holds in the vegetable as well as in the animal kingdom...