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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PIN VISE
When gluing various small items to be tightly pressed against the connecting part is very difficult. Resorted to using masking tape, and rubber bands, and thread. I was faced with such a...
RIDING FAN
This single machine with "air cushion" created in the engineering laboratory of the Leningrad Palace of pioneers named after A. A. Zhdanov. One engine from the motorcycle, rotate the fan...
