
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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Diagnostic voltmeter
The operating life of lead acid batteries largely depends on their proper operation. According to technical conditions, it is unacceptable to discharge one section below 1.7-1.8 V....
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Every time I talk about the French ships of interwar buildings, we have to remember the relevant Italian. The constant rivalry between the two Mediterranean Nations forced the designers...