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 176
esistance is applied ? At what point in a float-board may the whole action or reaction of aliquid be conceived to be applied ? On how many different principles are machines for raising water con-structed ? Into how many classes are those machines divided, which depend fortheir efficiency entirely… … in the margin represents it as consistingof a number of plates or flat disks ofwood, D D D D, attached horizontallyto an endless chain, and passing roundtwo wheels, E and F, by turning whichthe chain and plates are carried througha water-tight cylinder, the lower end ofwhich is plunged beneath the…
Physics
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