The brochure is devoted to the amazing properties of magnetized water and the possibilities of their practical use (in industry, agriculture, etc.). In a popular form, various modern scientific ideas about the phenomenon of magnetization are presented. Examples of experiments using magnetized water (in particular, in livestock), conducted with the personal participation of the author, are given. For a wide range of chemists and other specialists (builders, doctors, agronomists, livestock specialists), as well as for everyone who is interested in the current state of the natural sciences.