Well's natural philosophy : for the use of schools, academies and privte students, introducing the latest results of scientific discovery and research ; arranged with special reference to the practical application of physical science to the arts and the experiences of everyday life ; with three hundred and seventy-five engravings (1873)
Wells, David A · New York : Ivison, Blakeman, Taylor and Co. · leaf 359
jects will be equal, or the line A B, whicli athe height of the man, will subtend the same angle as the line C D, which isthe height of the crow; and therefore the man appears at such a distance nolarger than a crow. jT . , The nearer an object is to the eye, the greater must be the an^le of vision… … THE EYE, AND THE PHENOMENA OF VISION. 355 an olject is from the eye, the less will be the inclination of the lines, and tholess the angle of vision. The nearer an object is to the eye, therefore, thelarger it will appear. Fig. 288.
Physics · Science · Technology
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