This Book Is a Planetarium: And Other Extraordinary Pop-Up Contraptions This Book Is a Planetarium: And Other Extraordinary Pop-Up Contraptions Hardcover
A working planetarium book projecting constellations on the ceilings and walls|A musical instrument with strings to strum|A geometric drawing generator|An infinite calendar|A message decoder|A speaker that amplifies sound|Fans of adult pop-up books like Robert Sabuda's Encyclopedia Prehistorica Dinosaurs: The Definitive Pop-Up Matthew Reinhart's Harry Potter: A Pop-Up Guide to Hogwarts and The Wonderful Wizard of Oz Interactive MinaLima edition|Birthday Father's Day Mother's Day graduation holiday and roommate gifts for men and women|Displaying alongside art fashion and design coffee table books or gift books that celebrate science such as Neil deGrasse Tyson's Welcome to the Universe in 3D
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From the Publisher
What can paper do?
Consider this book an interactive field guide to the invisible: play with aspects of our world that are usually abstractions, like light, sound, time, and space.
Includes six functional pop-up paper contraptions:
A musical instrument
Sound is produced when something physical vibrates the air surrounding it—whether that object is a string, vocal chords, or a speaker.
A decoder ring
Substitution is when each letter is swapped for a different character falling a specified number of positions away.
A perpetual calendar
This perpetual calendar works because it is a wheel—which, like a year, is also a cycle divisible into smaller units.
A planetarium
Light rays travel through transparent materials, bounce off of reflective surfaces, and are stopped by unreflective objects. Here, most of the light is blocked by the paper walls, which reflect the light back into the glowing dome.
A speaker
The speaker works because its conical structure takes advantage of how sound waves travel through air.
A spiralgraph
The spiralgraph produces beautiful patterns through the action of nested spinning.