Titelbild der Erstausgabe: <i>Opticks or a treatise of the reflections, refractions, inflections and colours of light</i>
<bdi><a href="https://en.wikipedia.org/wiki/en:Isaac_Newton" class="extiw" title="w:en:Isaac Newton"><span title="English physicist and mathematician (1642–1727)">Isaac Newton</span></a>
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NOAA, <a rel="nofollow" class="external free" href="http://www.photolib.noaa.gov/htmls/libr0333.htm">http://www.photolib.noaa.gov/htmls/libr0333.htm</a>