A simple feeder for small birds can be done literally in minutes, using a tin can and a stick of wood or a suitable diameter of the branch.
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Easy to fly model aircraft. I want to offer young readers with "M-K" unpretentious three models, the design of which worked at the Center for Children's technical creativity of the city...
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A lighter, a diagram is shown in the drawing, is intended for gas stoves. It is reliable, comfortable and safe. The device is a transistor blocking oscillator, powered by dry batteries...
