To protect the cutting edges of tools from accidental damage during storage and transportation will help simple cozies. They can produce in just a few seconds. Take a cut from leather, thick cloth or canvas strip, fold it in half to connect the sides with scriptorially.
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SIMPLE STEREOMIXER
For school discos and Amateur recording magazine "Funkamateur" (GDR) offers a scheme of five "anal stereomixer (Fig. 1). It is designed to connect two stereophonically (X1, x2), two...
THE WING OR SAIL?
The question posed in the title, still have not found a final resolution. The first experiments to replace the traditional sail is a vertical wing, by profiling and design friends of the...
