One of the known scientifically-cognitive books, great number of decades using enormous popularity for readers all ages and generations. Worth-while experiments, entertaining puzzles and tasks, scientific paradoxes and enthralling histories, exposing from the point of view of physics usual and all the acquainted phenomena of daily occurence, unexpected look to favourite from little up artistic works. Even that, whoever was able to make friends with physics at school, by means of book Перельмана with lightness will master all secrets and riddles of this entertaining science.