Formāts: Hardback, 32 pages, height x width x depth: 203x241x8 mm, weight: 272 g, Table of contents; Glossary; Bibliography; Index; Halftones, color; Illustrations, color
Formāts: Hardback, 32 pages, height x width x depth: 203x241x8 mm, weight: 272 g, Table of contents; Glossary; Bibliography; Index; Halftones, color; Illustrations, color
Introduces simple machines, including the wedge, the pulley, and the level, demonstrating their use in everyday objects.
Explains what simple machines are and what they do; describes the scientific method; and includes experiments testing different simple machine concepts.