The electroforming technique of electrolytic deposition of metals on the surface of various objects (matrices) with the aim of obtaining accurate metal copies were first developed and applied in practice in 1838 by the Russian scientist, academician B. S. Jacobi. With his direct participation had made many great works of art, statues and bas-reliefs for St. Isaac’s Cathedral, Hermitage Museum, Winter Palace, Peter and Paul Cathedral, including the famous Quadriga to front of the Bolshoi theater in Moscow.
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For grinding of surfaces of metal parts to a mirror Shine created a lot of mechanical devices. However, most of them are designed for processing flat surface, in an extreme case, with only a small curvature. And how to be with different matrices and punches, press forms — after all, they must be treated as carefully!
The normal brush is good for painting only flat surfaces. That’s why innovators design for complex works of a special brush. The original, with the unusual instrument, outwardly, no resemblance to the brush, though intended to perform it functions. He developed in the Institute Kazorgtechstroy and is designed for painting pipes oil compositions.
…GRINDING
Usually when we in the club EN-route modeling at the Tushino syt in the beginning of the school year come the newbies, they are already at the first lesson confides that they want to choose for your first model as a prototype? nail last season Ferrari, the unusual six-wheeled “McLaren” or the unthinkable, PA elegance “Carrera” GT class.
Dream master the air ocean has long been concerned with humanity. This is reflected in the legends of antiquity, and the works of scientists of antiquity. The mythological wings of Icarus were made of feathers bonded by wax. Leonardo da Vinci, developing a frame structure of the wings, hoped to move without hands, and stronger leg muscles. But the subdued air element was with… stationary wings. Flapping flight is still not revealed all its secrets.
Among smokers at all times, alone stood out, those who prefer tubes. This is due not only to the dubious assertion that the pipe is less harmful, but solemnity in the ritual of tamping it with tobacco and the process of Smoking Many of its supporters is captivating, and yet that with all the variety of pipe TOBACCOS they have one thing in common – most of them are scented and smell good.
