Optics--a field of physics focusing on the study of light--is also central to many areas of biology, including vision, ecology, botany, animal behavior, neurobiology, and molecular biology. The Optics of Life introduces the fundamentals of optics to biologists and nonphysicists, giving them the tools they need to successfully incorporate optical measurements and principles into their research. Sönke Johnsen starts with the basics, describing the properties of light and the units and geometry of measurement. He then explores how light is created and propagates and how it interacts with matter, covering topics such as absorption, scattering, fluorescence, and polarization. Johnsen also provides a tutorial on how to measure light as well as an informative discussion of quantum mechanics. The Optics of Life features a host of examples drawn from nature and everyday life, and several appendixes that offer further practical guidance for researchers. This concise book uses a minimum of equations and jargon, explaining the basic physics of light in a succinct and lively manner. It is the essential primer for working biologists and for anyone seeking an accessible introduction to optics.

Optics—a field of physics focusing on the study of light—is also central to many areas of biology, including vision, ecology, botany, animal behavior, neurobiology, and molecular biology. The Optics of Life introduces the fundamentals of optics to biologists and nonphysicists, giving them the tools they need to successfully incorporate optical measurements and principles into their research. Sönke Johnsen starts with the basics, describing the properties of light and the units and geometry of measurement. He then explores how light is created and propagates and how it interacts with matter, covering topics such as absorption, scattering, fluorescence, and polarization. Johnsen also provides a tutorial on how to measure light as well as an informative discussion of quantum mechanics. The Optics of Life features a host of examples drawn from nature and everyday life, and several appendixes that offer further practical guidance for researchers. This concise book uses a minimum of equations and jargon, explaining the basic physics of light in a succinct and lively manner. It is the essential primer for working biologists and for anyone seeking an accessible introduction to optics.

A comprehensive treatment of visual ecology Visual ecology is the study of how animals use visual systems to meet their ecological needs, how these systems have evolved, and how they are specialized for particular visual tasks. Visual Ecology provides the first up-to-date synthesis of the field to appear in more than three decades. Featuring some 225 illustrations, including more than 140 in color, spread throughout the text, this comprehensive and accessible book begins by discussing the basic properties of light and the optical environment. It then looks at how photoreceptors intercept light and convert it to usable biological signals, how the pigments and cells of vision vary among animals, and how the properties of these components affect a given receptor's sensitivity to light. The book goes on to examine how eyes and photoreceptors become specialized for an array of visual tasks, such as navigation, evading prey, mate choice, and communication. A timely and much-needed resource for students and researchers alike, Visual Ecology also includes a glossary and a wealth of examples drawn from the full diversity of visual systems. The most up-to-date overview of visual ecology available Features some 225 illustrations, including more than 140 in color, spread throughout the text Guides readers from the basic physics of light to the role of visual systems in animal behavior Includes a glossary and a wealth of real-world examples

During the later Middle Ages people became increasingly obsessed with vision, visual analogies and the possibility of visual error. In this book Dallas Denery addresses the question of what medieval men and women thought it meant to see themselves and others in relation to the world and to God. Exploring the writings of Roger Bacon, Duns Scotus, Peter Aureol and Nicholas of Autrecourt in light of an assortment of popular religious guides for preachers, confessors and penitents, including Peter of Limoges' Treatise on the Moral Eye, he illustrates how the question preoccupied medieval men and women on both an intellectual and practical level. This book offers a unique interdisciplinary examination of the interplay between religious life, perspectivist optics and theology. Denery presents significant new insights into the medieval psyche and conception of the self, ensuring that this book will appeal to historians of medieval science and those of medieval religious life and theology.

From Homer and Shakespeare to Toni Morrison and Jonathan Safran Foer, major works of literature have a great deal to teach us about two of life’s most significant stages—growing up and growing old. Distinguised scholar Arnold Weinstein’s provocative and engaging new book, Morning, Noon, and Night, explores classic writing’s insights into coming-of-age and surrendering to time, and considers the impact of these revelations upon our lives. With wisdom, humor, and moving personal observations, Weinstein leads us to look deep inside ourselves and these great books, to see how we can use art as both mirror and guide. He offers incisive readings of seminal novels about childhood—Huck Finn’s empathy for the runaway slave Jim illuminates a child’s moral education; Catherine and Heathcliff’s struggle with obsessive passion in Wuthering Heights is hauntingly familiar to many young lovers; Dickens’s Pip, in Great Expectations, must grapple with a world that wishes him harm; and in Marjane Satrapi’s autobiographical Persepolis, little Marjane faces a different kind of struggle—growing into adolescence as her country moves through the pain of the Iranian Revolution. In turn, great writers also ponder the lessons learned in life’s twilight years: both King Lear and Willy Loman suffer as their patriarchal authority collapses and death creeps up; Brecht’s Mother Courage displays the inspiring indomitability of an aging woman who has “borne every possible blow. . . but is still standing, still moving.” And older love can sometimes be funny (Rip Van Winkle conveniently sleeps right through his marriage) and sometimes tragic (as J. M. Coetzee’s David Lurie learns the hard way, in Disgrace). Tapping into the hearts and minds of memorable characters, from Sophocles’ Oedipus to Artie in Art Spiegelman’s Maus, Morning, Noon, and Night makes an eloquent and powerful case for the role of great literature as a knowing window into our lives and times. Its intelligence, passion, and genuine appreciation for the written word remind us just how crucial books are to the business of being human.

This text describes the optical structures and optical properties of the human eye. It is divided into five sections, covering topics such as basic optical structure of the human eye and image formation and refraction of the eye.

What is light? Where are optics and photonics present in our lives and in nature? What lies behind different optical phenomena? What is an optical instrument? How does the eye resemble an optical instrument? How can we explain human vision? This book, written by a group of young scientists, answers these questions and many more.