This book explains the principles of light, lenses, and other key science ideas behind the technology of telescopes, binoculars, and microscopes. The book discusses the history of the inventions, their uses, and how to select front/back matter Glossary of key words Index Infographics Phonetics Photo captions Sources for further research Suggested websites Table of contents Timeline of key events How do cell phones work? What happens when you flush a toilet? How can an airplane fly? Through diagrams, step-by-step explanations, and plenty of humor, this series explains the workings of everyday gadgets, tools, and technologies. Each title also addresses the history of each invention and its social significance. How has this technology evolved? How is it changing our world? Young readers' worlds will expand when they find out How Things Work! Additional features to aid comprehension include a table of contents, original illustrations and diagrams, informative captions and sidebars, a phonetic glossary, a time line, sources for further research, an index, and introductions to the author and illustrator.
