Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 46
34 VAN nostrand's engineering magazine. Fig. 2 We find for the force passing at a y' — a m — a I cos. /?=F K cos. (i … sider the area (A), which is entirely ex- pressed in considering -its conjugate (AJ which we will make use of in the future. 0 D is Asymptote of the Hyperbolas GF&G'F
Engineering
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