A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams (1829)
Curtis, Thomas, fl. 1820 · London : Thomas Tegg · leaf 292
p;iss through the, pupil of the eye can affect the sense; and thoserays also give the ideas of color, according tothe properties of those bodies which transmit orreflect them. 534. As the direction in which the extrem-pencils of light cross each other in the eye bearsa due proportion to the angle… … 270 OPTICS. distance of bodies, which, however, in manycases, are corrected by experience. The nearerany object is to the eye, the larger is the angleby which it will appear in the eye, and thereforethe greater will be the seeming magnitude ofthat body. In fig. 4 let A B be an object vieweddirectly…
Encyclopedias and dictionaries · Aeronautics
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