We used to think that science is very difficult. And the famous scientist, popularizer of physical and mathematical disciplines, Yakov Perelman, proved the opposite. His tasks and their solutions, remarkable in their clarity, even today easily carry the student into the world of logic, help the young reader understand the complex laws of the universe.This unique encyclopedia with augmented reality will show how accessible and interesting the study of mathematics can be, physics and astronomy. The publication contains many logical puzzles and ingenious riddles, intelligible explanations and colorful illustrations. But this is not just a collection of tasks and interesting facts, but a book with augmented reality in the format of interactive 3D games. So, it makes it possible to see the studied phenomena in motion and volume. With the help of a smartphone and a mobile application, the young child prodigy will make the windmill rotate its blades quickly and quickly and lift the MiG-15 into the air right from the pages. The future erudite will explain the operation of the law of Archimedes, looking at the Titanic disappearing in the water column. Solving problems, the student will evaluate the ability of a person to “overtake” the Earth and learn to determine the speed of a train by the sound of wheels, feel like a racing car pilot or a train driver.With this book, the child will deepen and expand knowledge, learn to think creatively and will spend time with great benefit!For middle school age.