A Bit of Arithmetic, Geometry, and Physics. Problems, Paradoxes, Games

Is there a place on Earth where the north end of a compass needle points south? Why can a water pipe burst from frost? Which is heavier - a box with one large iron ball or one with small balls... made of the same material? Does the fate of an emperor depend on the date of his birth?
This book presents these and many other curious questions from different fields of science: physics, geometry, geography, and even meteorology. By answering them, your child will expand their knowledge in these areas, develop ingenuity, and have fun - the publication also includes fascinating experiments, puzzles, and tricks.
The book is written in accessible language, and at the end of each section, there are answers and explanatory comments on complex points. This edition will appeal to both children and parents who engage with them independently.