Journal of the Franklin Institute; devoted to science and the mechanic arts (1826)
Franklin Institute (Philadelphia, Pa.) · Oxford, Eng. [etc.] Pergamon Press [etc.] · leaf 250
by theequivalent horizontal thrust due to the value of the vertical weight atthe point c and e. In other words, suppose that the mass of matter in the stone A B,b a, be supposed to be concentrated at the point b, and in the samemanner the mass of matter of/, F, H, g, be accumulated in the… … 1 Put such value to the weight at c and e as will have a horizontalthrust equal to the tendency of the two masses (accumulated at b and/),to press inward, and the points b and/remain in equilibrio. In the same manner, let the value of the vertical weight acting atd, in the direction d e and d e,…
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