Big encyclopedia of knowledge. Technics

This big encyclopedia of knowledge will become an indispensable gift and a genuine discovery for children who are truly interested in technology. The book contains a lot of useful information about the device and operation of various industrial machines, transport and household appliances. Of the brief interesting articles set forth in an accessible language, the reader learns about how a person, thanks to his scientific genius, learned to use the energy of the sun, wind and water, discovered electricity, invented various engines, created helping mechanisms that changed our lives. The encyclopedic information contained on the pages of the publication is supplemented by curious facts, visual schemes and vivid illustrations. Acquaintance with this book will undoubtedly bring the guys a lot of benefits and will give great pleasure