Soloviev-Nesmelov, N.A. - writer, children's writer. This work was written by him as a book for reading older children. The publication has compiled a number of biographical articles on world famous scientists, scientists and inventors: James Watt, whose name is the unit of power - Watt, Robert Fulton - the creator of one of the first submarines, George Stephenson - the inventor of the steam locomotive, Gumfrey Davy - the famous English chemist, Kepler - the discoverer of the laws of motion of the planets of the solar system, Isaac Newton - the creator of classical physics, Swamerdam - Dutch naturalist, Latrell - French entomologist and David Livingston - Scottish missionary, explorer of Africa.