Columbovo Egg

The book of St. Petersburg Professor I.Ignatyeva is devoted to the simplest physical phenomena, brightly demonstrating the properties of the liquids and the effect of the main physical forces, such as inertia, the strength of gravity, elasticity. Guided by this book, you can create visual benefits at home at home.
Can I put a pencil on the edge? Bend? Make dance kitchen dishes? Make a fountain from pumpkin and swing from the candle? Sixty-eight entertaining experiences will fill out your free time and help you spend fun and with benefit. The style of the author, his explanations of physical phenomena, as well as the materials used by them and the tools correspond to the time of writing a book, that is, the end of the nineteenth century (!) For a modern reader, this is of particular interest, as I introduce the scientific data of the beginning of the century and makes it possible to compare them with modern realities .. Immerse yourself in the atmosphere of the past, spend old experiments, play the mind of your great-grandfather and great-grandmothers!