The elements of natural and experimental philosophy .. (1834)
Phillips, R. (Richard), Sir, 1767-1840, Smith, E. A · New York, M'Elrath, Bangs & Herbert · leaf 65
tead of a rectilineardirection. And it may be conceived to be made, by cutting apiece of paper into the form of an inclined plane, and then wrap-ping it round a cylinder ; the edge of the paper will form a spiralline round the cylinder, which line will answer to the thread ofthe screw. LXXXVI. The… … Mils. It is evident that the winch orlever will turn the cylinder once round,whilst the weight, or the resistance,can be moved from one spiral windingto an other, as from x to 2r, Fig. 26. Ifthe distance of the spirals z x, is halfan inch, and the lever a, three feet, of3G inches long,then the…
Physics
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