موسوعة العلم والتكنولوجيا: كيف – الآلات والمعدات

Description

Machines and equipment are the subject of this volume from the «How» group. It helps young readers understand how industrial and mechanical devices are built and how they do their work.

The Science and Technology Encyclopedia is a series of eighteen books that try to answer the questions we most often ask, adding to our scientific and technological knowledge. Volumes are grouped by question word (When, How, Why, Where, What and Who), and colour pictures make each book entertaining and build a love of reading. Text in Arabic.