Designer Kelli Anderson's new book is for more than just reading. This Book Is a Planetarium is really a collection of paper gadgets. With each thick, card stock page you turn, another surprise pops out.
"This book concisely explains—and actively demonstrates with six functional pop-up paper contraptions—the science at play in our everyday world," the book's back cover explains. It turns out, there's a whole lot you can do with a few pieces of paper and a little bit of imagination.
There's the eponymous planetarium, a paper dome that you can use with your cell phone's flashlight to project constellations onto the ceiling. There's a conical speaker, which you can use to amplify a smaller music player. There's a spiralgraph you can use to make geometric designs. There's a basic cipher you can use to encode and decode secret messages, and on its reverse side, a calendar. There's a stringed musical instrument you can play on. All are miniature, functional machines that can expand your perceptions of what a simple piece of paper can become.