Do you use a graphic artist and pen, a capillary tube or a thin brush in between work, it is desirable to attach them so that they do not stain and do not dry out. In these cases, rescue of a conventional Laundry clothespin: the tool can be suspended in a glass of water or bottle of ink or paint.
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Often, in order to work in a range of electrical oscillations of sound frequencies it is necessary to select the same capacitors. This and various or balanced bridge circuits, and is...
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On the roads of Kharkiv, there was one car with the familiar letters of the COI — "Club eternal". The automotive laboratory of the centre of scientific and technical work is headed by...
