To remove or hang on the door hinges alone — for many, this becomes an intractable problem. Make the device shown in the figure, and the case will move forward.
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MILL IN MINIATURE
The proposed mini-mill was made a few years ago, eighth-grader Edward Sarkisov in the circle of technical creativity in school No. 17 in the city of Vladikavkaz. It is designed for...
ECONOMICAL LIGHTING
In large apartments and private homes in the evening and at night it is difficult to follow the dark corridors or staircases to the touch to find the button and turn the lighting. ...
