How It Works. 250 Devices and Mechanisms

This book reveals the secrets of how numerous devices, designed by humans over thousands of years, work: from simple mechanisms like screws and wheels, locks and bicycles, to real technological wonders like smartphones and rocket engines. Each page introduces a... detailed exploration of the principles behind their operation, and very importantly, all these outstanding inventions are grouped according to the laws of physics that underlie their design. Thus, even a reader who is not particularly technically savvy will easily be able to follow how basic natural forces—gravity, friction, inertia, elasticity, pressure, and others—make modern machines, devices, and equipment work. By showing the essence of the things around us, the book answers one of the main questions: how is everything arranged? Colorful illustrations, clear diagrams, and comprehensive explanations make complex engineering concepts accessible even to children and teenagers.
From the pages of the book, they will learn how household appliances and electronics, construction tools and energy facilities, cars, airplanes, space stations, and much, much more are arranged. But that's not all: with the help of a free app on a smartphone or tablet, the studied objects can come to life! Now static images turn into 4D models on the screen that can be moved and rotated, observing their operation in real time. Moreover, this engaging activity is accompanied by informative content that can be listened to in audio format. This edition will not only satisfy a child's curiosity but also encourage a closer acquaintance with technical sciences, which is especially important in our time. 
For middle and high school age.