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 342
ter S3ason, and in high northern latitudes. 696. The beautiful crimson appearance ofthe clouds after sunset in the western horizon,is due in a great measure to the fact that thered rays of the solar light are less refrangible than any of theother colored rays,and in conse-quence of this,they are… … 333 WELLSS NATURAL PHILOSOPHY, son they are the first to appear in the morning when tliesun rises, and impart to the morning clouds red or crim-son colors. Let us suppose, as in Fig. 274, a ray of light proceeding from the sun, S,to enter the earths atmosphere at the point P. The red rays, which…
Physics · Science · Technology
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