Word: thousandths
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Dates: during 1893-1893
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...same instant. Hitherto Ewald's key for recording the time of mental reaction has been used, but it will be replaced in laboratory and practical use by the Bliss Multiple Key, which not only saves one-half the labor in making experiments, but records variations of one-ten-thousandth of a second. It is made of unlacquered brass without platinum contact, and so arranged that five currents run through it. One, two or three of these can be made or broken at the same time, or broken for an instant and then made again, or these makes and breaks...