Haswell's engineers' and mechanics' pocket-book .. (1844)
Haswell, Chas. H. (Charles Haynes), 1809-1907 · New York, Harper & brothers · leaf 94
um by the length ef and the product by .1309, and itwill give the solidity. Note.—For all such solids, this rule is exact when the body is formed by the conic•action, or a part of it, revolving about the axis of the section, and will always bevery near when the figure revolves about another line. *…
Engineering · Mechanical engineering
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