In winter, a suit for window boxes”refrigerators” to store perishable products. It is not very convenient for many reasons: it is necessary to open the Windows; the produce into the machine. However, this same box can be set just on the windowsill, and to it through the frame to drill a few holes with a diameter of about 12 mm by inserting them into tubes so the cold air does not get between the frames, and went straight into the bin. Movable plate, Overlapping the hole, allow to regulate the flow of cold air. A. VINOGRADOV, Mogilev
Recommend to read
MODEL-A COPY OF CHAMPION
In the laboratory, missile and space modeling of the Moscow city Palace of children's (youthful) creativity of the work on the creation of models-copies of the booster (PH) "Soyuz" was...
THE SLEEVE ON THE SUSPENSION
To improve the performance of micro-motors, internal combustion modelers increasingly use parts from non-ferrous metals. For example, the cylinder liner can be made of brass, and the...
