Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 739
eing made. In this way the accuracyof the time scale is in no way affected by unsteadiness of motionof the tape, since, were the motion to slow down due to friction,the spacing of the time lines would be less in distance but stillthe same in time interval. This devise is an old one known as… … score of accuracy and, on the score of simplicity and dependa-bility, nothing could be better. GALVANOMETER. With the recording camera just described a great variety ofmotions may be photographed directly. A fine wire may beattached to the moving part and suitable illumination providedand a motion…
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