 | John Imison - Art - 1822 - 528 pages
...the hand, the muscle that exerts its force to raise that weight is fixed to the bone about onetenth part as far below the elbow as the hand is. And the elbow being the centre round which the lower part of the arm turns, the muscle must therefore exert a force ten times... | |
 | Sir Richard Phillips - Physics - 1826 - 236 pages
...an instance— rf the elbow, is the centre of motion, the power, is the motion inserted at c, at out one tenth part as far below the elbow as the hand is, and a is the weight to be raised ; the muscles must accordingly exert a power equal to one hundred pounds... | |
 | Sir Richard Phillips - Physics - 1826 - 254 pages
...as an ifib stance— d the elbow, is the centre of motion, the power, is the motion inserted at c, about one tenth part as far below the elbow as the hand is, i and a is the weight to be raised ; the muscles must accordingly exert a power equal to one hundred... | |
 | Leonard Dunnell Gale - Physics - 1838 - 280 pages
...43, as an instance,— d the elbow, is the centre of motion, the power is the muscle inserted at c, about one tenth part as far below the elbow as the hand is, and a is the weight to be raised; the muscles must accordingly exert a power equal to one hundred pounds... | |
 | James Ferguson - Astronomy - 1839 - 554 pages
...bones of a man's arm : for when we lift a weight by the hand, the muscle that exerts its force to raise that weight, is fixed to the bone about one tenth...center round which the lower part of the arm turns, the muscle must therefore exert a force ten times as great as the weight that is raised." As this kind... | |
 | Mrs. Lincoln Phelps - Physics - 1848 - 330 pages
...or fulcrum ; at e, is the muscle, which acts as the power in raising a weight, a . tne muscle being about one tenth part as far below the elbow as the hand, it follows that it must exert a power equal to one hundred pounds to raise a weight of ten pounds.... | |
 | Charles Baker - Education - 1857 - 438 pages
...hand, the muscle that exerts its force to raise the weight, being fixed to the hone about one-tenth part as far below the elbow as the hand is, and the elbow joint being the centre round which the lower part of the arm turns, the muscle must exert a force about... | |
 | Thomas Dick - Philosophy and religion - 1869 - 664 pages
...22, D is the elbow, and the centre of motion, the power is the motion produced by the muscle at C — about one tenth part as far below the elbow as the hand is — and A is the weight to be raised. The muscle must accordingly exert Fig. 22. AN ABM. a power equal to one... | |
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To this sort of lever are generally referred the bones of a man's arm ; for when he lifts a weight by the hand, the muscle that exerts its force to raise that weight is fixed to the bone about one tenth part as far below the elbow as the hand is. And... 
