The half -forgotten secrets of space, land, seas, technology and history. Mikhailov O.V.

The book of a prominent scientist and popularizer of science O. V. Mikhailov is devoted to the presentation of a number of relatively little -known mysterious stories that occurred at different times in the process of human civilization. It describes a total of twenty -five such puzzles related to the most different branches of knowledge - from theoretical physics to ancient history.

The material of the book is divided into five chapters, which give facts, versions and hypotheses related to Riddles of space, land, seas, technology and history. By the nature and style of the presentation, the book is designed for a mass reader with a wide variety of education and a circle of interests. It can be useful for specialists in various fields of natural and social sciences.