Based on the idea that creativity and curiosity are fundamental to both art and science, PARS presents their third work in their -Findings on . . .- series. It presents works centered around the topic of -Light.- Every living organism needs light to live and survive -- the body's circadian rhythms, neurological and biochemical processes, they all need light to function. A collection of fascinating, and sometimes unbelievable, research, this book joins the series after - Ice- and -Elasticity.-