You may be familiar with Isaac Newton from such inventions as calculus and the law of universal gravitation. What you may not know is that he was also an avid “chymist,” or alchemist. In fact, Newton ...
"The colors of the spectrum, then, "are not Qualifications [alterations] of Light … (as 'tis generally believed), but Original and connate properties." When you purchase through links on our site, we ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This mechanical lantern slide has a ...
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