How the Ray Gun Got Its Zap is a collection of essays that discusses odd and unusual topics in optics. Though optics is a fairly specialized branch of physics, this book extracts from the discipline topics that are particularly interesting, mysterious, culturally relevant, or accessible. The essays all first appeared, in abbreviated form, in Optics and Photonics News and in The Spectrograph; the author has updated and expanded upon each of them for this book. The book is divided into three thematic sections: History, Weird Science, and Pop Culture. Chapters...