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 312
ng,tremulous path of light seems tobe formed toward the eye of thespectator, while all the rest of thesurflice appears dark. The reasonof this appearance is, that every little wave, in an extent perhaps of miles, hasBome part of its rounded surface with the direction or obliquity which, accord-ing… … 308 WELLSS NATURAL PHILOSOPHY. Row are parallei rays reflected from a con-cave mirror? Fig. 242. What Is a Con- 664. A concave mirror may be consideredas the interior surface of a portion, or segmentof a liollow sphere. This is clearly shovra in Fig. 242. A concave mirror may be represented by a…
Physics · Science · Technology
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