Every optical system requires some sort of preliminary design. Getting started with the design is often the most intimidating step, but identifying several important specifications of the system will help establish an initial plan. The following questions will illustrate the process of designing a simple detector or emitter system. Although simple lenses are often used in imaging applications, …
Lakes are interconnected with other water resources. Lakes receive much of their water from streams and ground water. Wetlands adjacent to the lakes, or connected to lakes by streams, often serve as spawning grounds for fish and habitat for diverse species of plants and animals. Protection of all of these natural resources as a whole is vital to the protection of lakes. A complex interdependenc…
This book provides a remarkable account of our planet's structure and the literally Earth-shattering process that shape it -- often with savage consequences for human being and other living things. Lavishly and spectacularly illustrated, with many unusual views of the Earth and its features, DK Guide to Savage Earth offers a comprehensive approach to understanding the making and shaping of plan…
Looks at the history of astronomy, identifies important astronomers, and summarizes what is known about the Sun, Moon, planets, and stars.
Looks at core topics from many angles, using facts, 3-D models, data boxes, charts, and more, bringing together the best of the Web with DK's outstanding reference books. e.guides Plant has its own Web site, Create by DK and Google. When you look up a subject in the book, the article gives you key facts and displays a keyword that links you to extra information online.
In the context of one day in the Altiplano, introduces the animals and plants that live in this mountainous terrain, describing their characteristics, behavior, and daily activities.
This captivating book will broaden your understanding of Ecology, with: - More than 90 of the greatest ideas in ecology - Packed with facts, charts, timelines and graphs to help explain core concepts - A visual approach to big subjects with striking illustrations and graphics throughout - Easy to follow text makes topics accessible for people at any level of understanding The Ecology B…
The prefect sized books for backpacks, DK's Pocket Genius series is bright, inviting, concise, and punchy ?? the ideal source for reference. Featuring essential information, full-color images, glossary, and top ten lists, these books are a brand-new type of encyclopedia for young readers. A visual look at the planet we call home, Pocket Genius Earth delves into Earth's geology and geography, ex…
A guide to the origins, principles, and historical study of light.
Featuring a wealth of never-before-published NASA photographs, charts, stories, and contributions by NASA astronauts and experts, A Visual Encyclopedia is a comprehensive exploration of space from our nearest planets and stars to far-off galaxies. Supports the Common Core State Standards.