To perform my late promise to you, I shall without further ceremony acquaint you, that in the beginning of the Year 1666 (at which time I applyed my self to the grinding of Optick glasses of other figures than Spherical,) I procured me a Triangular glass-Prisme, to try therewith the celebrated Phænomena of Colours. And in order thereto having darkened my chamber, and made a small hole in my window-shuts, to let in a convenient quantity of the Suns light, I placed my Prisme at his entrance, that it might be thereby refracted to the opposite wall. It was at first a very pleasing divertisement, to view the vivid and intense colours produced thereby; but after a while applying my self to consider them more circumspectly, I became surprised to see them in an oblong form; which, according to the received laws of Refraction, I expected should have been circular. They were terminated at the sides with streight lines, but at the ends, the decay of light was so gradual, that it was difficult to determine justly, what was their figure; yet they seemed semicircular. Comparing the length of this coloured Spectrum with its breadth, I found it about five times greater; a disproportion so extravagant, that it excited me to a more then ordinary curiosity of examining, from whence it might proceed. I could scarce think, that the various Thickness of the glass, or the termination with shadow or darkness, could have any Influence on light to produce such an effect; yet I thought it not amiss, first to examine those circumstances, and so tryed, what would happen by transmitting light through parts of the glass of divers thicknesses, or through holes in the window of divers bignesses, or by setting the Prisme without so, that the light might pass through it, and be refracted before it was terminated by the hole: But I found none of those circumstances material. The fashion of the colours was in all these cases the same.

This volume collects together Newton's principal philosophical writings for the first time.

Unlike many other art books only give recipes for mixing colors or describe step-by-step painting techniques, *Color and Light* answers the questions that realist painters continually ask, such as: "What happens with sky colors at sunset?", "How do colors change with distance?", and "What makes a form look three-dimensional?" Author James Gurney draws on his experience as a plain-air painter and science illustrator to share a wealth of information about the realist painter's most fundamental tools: color and light. He bridges the gap between abstract theory and practical knowledge for traditional and digital artists of all levels of experience.

A lively account of our age-old quest for brighter colors, which changed the way we see the world, from the best-selling author of Proof: The Science of Booze From kelly green to millennial pink, our world is graced with a richness of colors. But our human-made colors haven't always matched nature's kaleidoscopic array. To reach those brightest heights required millennia of remarkable innovation and a fascinating exchange of ideas between science and craft that's allowed for the most luminous manifestations of our built and adorned world. In Full Spectrum, Rogers takes us on that globe-trotting journey, tracing an arc from the earliest humans to our digitized, synthesized present and future. We meet our ancestors mashing charcoal in caves, Silk Road merchants competing for the best ceramics, and textile artists cracking the centuries-old mystery of how colors mix, before shooting to the modern era for high-stakes corporate espionage and the digital revolution that's rewriting the rules of color forever. In prose as vibrant as its subject, Rogers opens the door to Oz, sharing the liveliest events of an expansive human quest--to make a brighter, more beautiful world--and along the way, proving why he's "one of the best science writers around."* *National Geographic

An experimental approach to the study and teaching of color is comprised of exercises in seeing color action and feeling color relatedness before arriving at color theory.

Traditional color theory can be confusing to artists, especially when they try to use inaccurate color wheels as guides to mixing their colors. Now, Color Theory Made Easy presents an alternative approach that cuts through the tangle of established but contradictory concepts that gives artists a universal theory that really applies to their work. Most artists have been taught that red, blue, and yellow are the primary colors hues that cannot be created from any combination of other colors. However, as a result of years of study, author and artist Jim Ames has concluded that the true primary colors are cyan (a greenish blue), magenta (a violet red), and a yellow that does not learn toward either cyan or magenta. In Color Theory Made Easy, Ames explains the importance of these three colors as the basis for all our thinking about color. Using friendly, clear language and colorful diagrams, the author lays the foundation in Chapter 1 for applying his color theory in art. He shows that all colors in nature are composed of varying percentages of cyan, magenta, and yellow. Chapter 2 builds on this with a survey of the pigment colors artists actually use. Here the author offers an essential education concerning paint selection, and he lists currently available tube colors that are the most accurate in terms of the true primaries. The final chapter explores color mixing principles based on cyan, magenta, and yellow, and applies these principles through a series of watercolor demonstrations. In this illuminating book, Jim Ames has broken new ground and given us a workable color theory that is both simple and indispensable."

This is Volume VIII of twenty-one in a collection on Cognitive Psychology. Originally published in 1929, the topic of this book, then, is the Ladd-Franklin theory of colour. Dr. Ladd-Franklin has been the first (and is still too nearly the only) physiologist to consider colour always in the light of the development of the colour-sense. This aspect of the subject is frequently reproduced in the present volume.