A boy wants to know what shadows are. Discover interesting facts about shadows along with him: what makes a shadow, how does a shadow get bigger, what the colors of a shadow mean, and more.

Audisee® eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience! Young readers will learn how shadows are made with light in this accessible, photo-filled book. Simple text explains different kinds of shadows and teaches students how they can make their own shadows. Vibrant photos bring basic science concepts to life and encourage kids to explore the shadows they see every day.

What happens when light is blocked? How can we redirect light? Readers will discover the answers to these questions and more in this fact-filled title. Readers will explore the properties of transparent, translucent, opaque, and reflective materials, and learn how to redirect light beams and create shadows. Teacher's guide available.

Roy Sorensen here defends the causal theory of perception by treating absences as causes. He draws heavily on common sense and psychology to vindicate the assumption that we directly perceive absences.

Discusses the relationship between the earth and the sun.

How the perception of shadows, studied by vision scientists and visual artists, reveals the inner workings of the visual system. In The Visual World of Shadows, Roberto Casati and Patrick Cavanagh examine how the perception of shadows, as studied by vision scientists and visual artists, reveals the inner workings of the visual system. Shadows are at once a massive problem for vision—which must distinguish them from objects or material features of objects—and a resource, signaling the presence, location, shape, and size of objects. Casati and Cavanagh draw up an inventory of information retrievable from shadows, showing their amazing variety. They present an overview of the visual system, distinguishing between measurement and inference. They discuss the shadow mission, the work done by the visual brain to parse, and perhaps discard, the information from shadows; shadow ownership, the association of a shadow with the object that casts it; shadow labeling, the visual system's ability to tell shadows from nonshadows; and the shadow concept, our knowledge about shadows as a category. Casati and Cavanagh then apply the theoretical apparatus they have developed for shadows to other phenomena: illumination, reflection, and transparency. Finally, they examine the art of the shadow, paying tribute to artists' exploration of shadow, analyzing a series of artworks (reproduced in color) from a rich and fascinating art historical corpus.

When a little boy goes outside to play, he discovers something mysterious, which he can't seem to get away from, no matter how hard he tries.