A system of natural philosophy, designed for the use of schools and academies (1845)
Moffat, J[ohn] M. [from old catalog] · Philadelphia, E. C. Biddle · leaf 81
whichthe poise being uniform, the weight is estimated by the height towhich it will elevate the poise. 159. Whatever may be the nature of the lever employed, aswhether it be of the first, second, or third kind, its mode of actionis in every case to be explained according to the principles already… … C. These linesarms of the lever. THE LEVER. 79 laid down. Thus in a lever of the second kind, in which theresistance, or weight to be overcome, is placed between the ful-crum and the power (see 154), the advantage of the latterwill be increased in the same ratio, as that of the distance orspace…
Physics
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