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 340
ng the same color at the same angle, tothe eye constitute a circle,—and hence the bands of color which make up arainbow, appear circular. What are pri- Two Tainbows are not unfrequently observed^dTr/^!^- ^t t^^6 same time, the one being exterior to,^^^^ and less strongly developed than the other.… … 336 WELLSS NATURAL PHILOSOPHY. How is the])rimary rain-bow formed! Fig. 271.
Physics · Science · Technology
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