Although expressions such as “shed some light ” or “I saw the light ” figure often in our everyday speech, we do not typically contemplate light. We may marvel at its seemingly mysterious expression through auroras, rain-bows, lasers, or celestial objects or find comfort in its sub-tler forms such as sunbeams, candles, campfires, or fireflies. Artists and scientists, by contrast, do study and manipulate light, reflection, and illumination. Impressionistic painters strive to capture an impres-sion of a fleeting moment, a particular scene. Many among their numbers are considered masters for their skill at cap-turing light as it shimmers across surfaces. Claude Monet once described Joaquín Sorolla y Bastida Sorolla as “the painter of light abo...