Nystrom, John W. (John William), 1824-1885 · Philadelphia, J.B. Lippincott · leaf 325
310 Parabolic Concave Mirror.d> f- d*16 h h = 16/ … 311 Hyperbolic Concave Mirror. Heat, Light, or Sound emanating fromthe foci of a hyperbola will be reflecteddiverged, from the concave surface. 312
Mechanical engineering · Engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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