Elements of natural philosophy (Volume 2-3) (1850)
Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 267
i^;/), and this being sub-stituted for /, in Equation (57), we get, by invertingand reducing, Relation betweenobject and image; F u _ » • • • • • m Rule. hence, any linear dimension of the object glass of a tele-scope, divided by the corresponding linear dimension ofits image, as formed by the eye… … Construction ofthe dynameterilained; To understand its construction, let us suppose two lu-minous circular disks, a tenth of an inch in diameter,to be placed one exactly over the other in the principal siTosedtobo ^ocus m °f a lens -^ an(l with their planes at right an-moved tangent to gles to its…
Mechanics · Acoustics · Optics
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