Old, leaky canister can still serve as a spray for watering garden lands: just need to neverlet it along the contour of a series of holes with a diameter of 3… 5 mm.
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THE ICE IS NOT TERRIBLE
If the sole of the Shoe to spread waterproof glue, and then not very thickly sprinkled with sand, you will feel on the ice, as on earth. R. ASTRAKHAN
THE SOLENOID
So, you are already familiar with the electromagnet, knows how to work the buzzer and electric bell (see "M-K" No. 8 this year). But there is a large group of Electromechanical devices,...
