The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)
Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 314
of the decomposition of thesolar rays by the drops of rain, and the separation of theserays into the elementai*y colors of which they are composed.This consists of a brilliant-colored arch spanning the heavens Illustrate this by prisms of flint and crown glass. Will a single lens con-verge all the… … THE RAINBOW. 309 opposite the sun, and usually has a second less brilliant attend-ant just above it, termed the secondary bow. The rainbow isonly seen when a shower of rain is falling, or the spray from acataract is rising between the spectator and that portion of theheavens opposite the sun. The…
Physics
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![An illustration from Mundus subterraneus, in XII libros digestus : qvo divinum subterrestris mundi opificium, mira ergasteriorum naturae in eo distributio, verbo [pantamorphon] Protei regnum, universae denique naturae majestas & divitiae summa rerum varietate exponuntur, abditorum effectuum causae acri indagine inquistae demonstrantur, cognitae per artis & naturae conjugium ad humanae vitae necessarium usum vario experimentorum apparata, necnon novo modo & ratione applicantur. Ad Alexandrum VII. pont. opt. max. (1678)](https://img.insideoutlibrary.com/img/200/ia-mundussubterrane02kirc-314-166.webp)