We already told about how in Czechoslovakia solves the problem of increasing the stability of the boat on the course by synchronizing the rotation of the propeller shafts in a twin-engine, twin-shaft scheme of the propulsion system. But the student of 7th class from the city of Tyumen Eugene Shein uses for double-shaft scheme engine of a single engine. Typically, such a transfer requires the installation of gear-distributor, Eugene is used to drive both propeller shafts rotating in opposite directions flexible shafts, springs. Gear now you do not need, springs are placed directly on the protruding ends of the motor shaft. Not a single unnecessary detail, and the desired effect achieved!
THE NEW SOLUTION
A great many of the problems faces by the Modeler, decided to pursue aviation equipment driven by electric motors.
Not yet available in all villages and towns there is a water supply and country and garden plots, it is often not at all — water should be taken from the wells. As a rule, mine waters, and not always they are close to home. What if the well to build on the property? However, to dig the mine — a very laborious process, you will have to shovel a lot of earth. More affordable tubewell. Will there be enough water in it? The production rate of a well is usually small depends on the size of its cross section. Therefore, the tubular source, if it is correctly constructed and properly maintained, will provide the needs of the infield is not worse than mine and not give him durability. Besides, he does not pass the surface contamination and thus the most safe in hygienic respect.
Older homes still sometimes there are amazingly cozy and beautiful tiled stoves. Alas, today, like the furnace heating, the tiles are fading. And they can be found only as a piece of exhibits at exhibitions of ceramic artists. And whether it is, for lack of tiles to coat your kiln ceramic tiles? — often ask us readers. How to cook mastic to stick the tile to the furnace?