Lynde, Carleton John, b. 1872, Gilbert, Alfred C. (Alfred Carlton), 1884-1961 · New Haven, Conn. : A.C. Gilbert Co. · leaf 118
Fig. 171. Astronomical telescope at Lick ObservatoryCourtesy of the Scientific American GILBERT LIGHT EXPERIMENTS 115 … Fig. 172. How you see the imageFrom Lyndes Physics of the Household, published by The MacmilJan Go. tance between the lenses is equal to the sum of their focallengths; and the magnification is equal to the focal length of theobjective divided by the focal length of the eyepiece. Terrestrial…
Light · Scientific recreations
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