Word: filteration
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Dates: during 1930-1939
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...waves to neutralize the din. Last week Dr. J. P. Foltz, engineer, invited scientists to the Westinghouse Research Laboratories, East Pittsburgh, Pa. to show them a small contraption which could analyze the street car's rattle-bang-clank-screech. The machine consists of a microphone, an amplifier, a filter circuit which allows only one wavelength at a time to pass to the meter for measuring. Since the machine weighs only 60 lb., is independent of outside current, it can easily be transported from one noisy place to another...
...first there was confusion. Some merchants still gave charge accounts, but they soon found that they were boycotted by "good accounts," patronized by "bad accounts." Now all the merchants, more than 30 of them, belong. A. C. Filter, drygoods; E. L. Kiessling, ready-to-wear; Caroline Gray, cafe; Swanson Bros. Meat Market; and the Silhette Grocery are all prominent members...
...would be allowed to run up the biggest retail bills if bills were allowed in Bloomfield are probably Banker William Lambrecht and Merchandiser Filter...
Cause of the disease is a virus so small that the most powerful microscopes cannot reveal it. It can pass through the very finest porcelain filter and still infect animals. In pathology this virus has special interest. It was the first ultramicroscopic, filterable virus discovered (1898), and gave a clue to many mysterious causes of disease. As to just what such viruses are, bacteriologists are not unanimous. They may be a kind of germ; they may be a kind of chemical...
...Autointoxication, due to the kidneys' failure to filter wastes from the blood...