Fascinating mechanics

Mechanics is a science that studies the movement of material bodies and the interaction between them. The famous Soviet mathematician, physicist, teacher Yakov Perelman shares interesting and unusual secrets of mechanical laws. This edition is an original text released in 1930 by the Publishing House Time.
What are the basic laws of mechanics? How to resolve the dispute of Copernicus and Ptolemy about the movement of the Earth? How to understand the law of inertia? How should the body move on which the same power has invariably acts? When is the horizontal line not horizontal? Why does the stream break into drops? Why are the rivers wriggling? How high can the ball jump out if it is dropped from the Eiffel Tower? What kind of load can withstand human hair? Why do straw and chips protect things from breakdowns? What path can a car with a motor off? Why is the hippo clumsy? Why do not grow to the sky?
The manual is equipped with many exciting examples, experiments and tasks, and is designed for a wide age audience