Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 96
VAN nostkand's engineebing magazine. 84 mains the same whatever number of vol- Let us consider the most ordinary shape of cross-sections, represented in umes compose the series. the diagram, and assume the formula: First, to explain this, we must have an for its area, expression for the… … [w'c + toe' + 2 {w'c' + wc) + 3sb{w + w') from the writer's Formulae for B.R. D2 Earthwork; the readers of which will recognize the expression, while others 24 can readily deduce it by inspection of [w'c -f- wc' + 2 {w'c' + wc) + 3sb(w + w') the value 3 of the symbols in the diagram, -12*] g S…
Engineering
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