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 89
On what will the effect of the wheel and axle depend? How is theeffect of the wheel to he estimated, when the cord is not applied directlyto its periphery ? Hpw can you prove the identity of the wheel andaxle, and the simple lever ? Of what practical applications is this machinesusceptible ? What… … 86 MECHANICS. centre. It is then worked by long levers, inserted in the holesby men who walk in succession round the capstan, and thus makeit revolve, while a rope or cable wound about the spindle may actwith force sufficient to weigh a ponderous anchor, or warp a heavy-laden vessel into harbour.…
Physics
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