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Time and its measurement (1909)

Arthur, James, 1842-1930 · Chicago · leaf 34

An illustration from Time and its measurement, 1909, leaf 34
u-merals for hours which you must nowbe able to read easily. These hourlines, and the dotted lines for halfhours, are really the same as the simi-lar lines on Fig. 18 which you nowunderstand. As the hand s\\eeps the u o I^R^ o ^ \^ ^/ w -^J \^ m^ Vo^y dial daily it autoniaticall)- moves out-ward a… … hour, on which the arrow hand nowstands, is longer than the other nighthours before it, and that it is dividedinto three by the dotted lines. The lastday hour, onthe left of dial,is also longand dividedinto threeThat is, whileall the dialspreviously de-scribed haveequal hoursfor any givenday, or…

Time · Clocks and watches

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