. Thinking, feeling, doing . g on and the pressure is exerted till the hook is a pressure of 500 grams. The finger is released,the stop is turned back, and the experiment is the person finds no hindrance, he stops when hethinks he is exerting the same force as before. Theactual position of the pointer is read off and the error isnoted. Suppose he stops at 495s; he then makes anerror of— 5^. Experiments with the whole squeeze of the hand indi-cate that, if on an average a man makes a mistake of * In scientific work and in civilized countries the gram is the unit of weig
. Thinking, feeling, doing . g on and the pressure is exerted till the hook is a pressure of 500 grams. The finger is released,the stop is turned back, and the experiment is the person finds no hindrance, he stops when hethinks he is exerting the same force as before. Theactual position of the pointer is read off and the error isnoted. Suppose he stops at 495s; he then makes anerror of— 5^. Experiments with the whole squeeze of the hand indi-cate that, if on an average a man makes a mistake of * In scientific work and in civilized countries the gram is the unit of weight. Power and Will. twenty grams on a weight of 200 grams, he will makeone of 30S on 400s, 40^ on 800^, and 46* on 1600&. Asthe weight grows larger, the actual amount of the aver-age error (or average mistake) increases ; thus it is 20^on 2oo& and 46s on i6oo§. But the proportion of theerror is not increased or even the same, but is decreased ;2o£ is a much larger part of 2oo& than 46^ of 16oog. MUSCLE Fig. 48. Decrease of Inaccuracy of Weight-judgments in School Childrenof Successive Ages. A method of making similar experiments with the arm Muscle sense * is to lift cylindrical weights between thumb and weights are sorted into two groups, those that ap-pear the same as the standard used and those that appeardifferent. The amount of difference that passes unno-ticed gives an idea of the accuracy of the is generally said to be a judgment by the musclesense. Up to this point we have experimented on the force of Force of actthe voluntary act and have said nothing about the rela- win. OItion between the force of will and the act itself. Theforce of the act we have measured in pounds or , not being a mechanical process, cannot be meas-ured by any physical force ; it can be measured only interms of will. 82 Thinking, Feeling, Doing. Two acts ofequal force. Neglect ofsmall differ- Cultivation ofaccuracy offorce. Strongestpossible effort.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpsychop, bookyear1895
