Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 838
hough its errors should be sometimes on one side, and sometimes on the other, so asto compensate one another, and make the general average the same, the performance is bad, and can-not be relied on. When the minuteness of the parts of a chronometer is considered, and the variety of disturbances… … 832 WATCHMAKIXG. oil,) will gieatly alter the result. Thus, as there are 1440 minutes in a day, any cause which makefeach vibration of tlie balance (of which there are five in a common watch) take place in l-7200th partless or more than its usual time, will cause the time-keeper to gain or lose a…
Mechanical engineering · Mechanics · Engineering
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