The book talks in popular form about an interdisciplinary complex of technologies united by the term "nano." Equally simple is told both about simple nanotechnology associated with quite understandable at the household level effects, and about quantum technologies, as well as technologies based on understanding and using the mechanism of life. It is easy and accessible to talk about the many possible practical applications of various nanoeffects, that is, those technologies that have found, or in the near (or maybe distant) future will find their application in various sectors of the economy and human activity. Among such sectors are energy, astronautics, medicine and many others. For a wide range of readers.