A natural philosophy : embracing the most recent discoveries in the various branches of physics, and exhibiting the application of scientific principles in everyday life .. (1899)
Quackenbos, G. P. (George Payn), 1826-1881 · New York, Cincinnati [etc.], American book company · leaf 260
polarizing light in a high de-gree ? How is tourmaline prepared ? What experiment may be performed with tour-maline plates ? 663. What phenomena are seen when certain crystals are viewed THE SOLAR SPECTRUM. 255 665. The Solar Spectrum.—If a ray from the sun beadmitted into a dark room through a… … THE SOLAR SPECTRUM. seven different colors. When made to fall on a white sur-face, these seven colors are distinctly seen, covering anoblong space, which is called the Solar Spectrum (plural,spectra). They are known as the Primary Colors, and inevery spectrum they are arranged in the order shown…
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-380-238.webp)
