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
WITH A SAIL IN HAND
SKIING. You can go sailing on skis, not installing them on the mast (see "M-K", 1982, № 12), but simply holding it in his hands behind him. This sail has a diamond shape, stretched on...
FORCING THE “D”
Bike engines D-5 is familiar to many designers and Amateurs. On their basis build different machines: microvesicle and motology, microaerobic and motonarty. Often readers turn to us with...
