FULL SPECTRUM

The author of Proof: The Science of Booze (2014) returns with a lucid study of the physics, chemistry, and neuroscience of color and its influence on the human condition.

The natural world is bursting with seemingly endless color, writes Wired deputy editor Rogers in this sharp, often jocular look at waves and particles, fluctuations in the Earth’s magnetic and electrical fields, and the electromagnetic spectrum, of which humans only experience a small visual slice. Since prehistory, we have gone about repurposing objects around us; one example is the engineering of chemicals to provide color. Those colors are picked up by the photoreceptors in our eyes and then processed. Rogers discusses how our neurophysiological and psychophysiological impressions help create our sense of the world, examining color as knowledge (discovering a good place to find food), color as commerce (desire, rarity, trade), color as semiotics, “to know how someone will see those colors once applied.” Rogers is particularly illuminating in his discussions of the history of color and our ever growing appreciation of it, from Aristotle to Arab physicists to the Chinese to the caves at Lascaux and beyond, as craft expertise blossomed into a revolution that marched in parallel with that of optics. While the author is in his element exploring the evolution of dyes and pigments, from the highly toxic to the highly opaque and bright, he is on less firm ground when approaching the “salience” of color, its “cultural and personal significance”—of course, this is understandable given that science has only begun to plumb the subject. Rogers also makes valiant attempts to discern the universality of color—“Do people who speak different languages literally see different colors?”—and through all the scientific concepts, he brings a tinder-dry humor and evident enthusiasm for the subject.

From opsins to Technicolor movies, Rogers covers the colorscape with brio, dash, and crystal clearness.