Field-book for railroad engineers. Containing formulas for laying out curves, determining frog angles, levelling, calculating earth-work, etc., etc., together with tables of radii, ordinates deflections, long chords, magnetic variation, logarithms, logarithmic and natural sines, tangents, etc., etc (1877)
Henck, John Benjamin, 1816-1903 · New York : D. Appleton · leaf 114
The samereasoning would apply, if the lower end also were truncated. Hence,for the solidity of the Avhole prism, whether truncated or not, we have S=AXhih + h,+ h.). 116. Problem. Given the edges h, h^, hn, and A3, to Ji7id tUsolidity S of a vertical prism, ivheiher truncated or not, whose… … prisms AFH and CFH. The horizontal section of each of theseprisms will be ^ A, and if A, h^, h^, and h^ represent the edges to whichthey are attached in the figure, we have for their solidity (§ 115)A FH =^A X k i^i-^ h + h). and CFH = ^A X ^ (^i + h +^g). Therefore, the whole prism will have for…
Railroad engineering · Ferrovias
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