In one of the rooms of your magazine for the last years drew attention to the Council graphitize — a convenient box with a piece of lace for sharpening a slate pencil. I propose to use for the same purpose a small tin can: othernote inside cover stick-on sandpaper — graphite in the sharpener will sypitsya to the bottom.
L. MAKSUTOV, Vratsa
Recommend to read
IMPROVED PROBE
Primitive "control print" — electroputere with two wires and the lamp — not the best device for "continuity" of electric circuits. Commercially available testers and isometry is also...
PIŁA-PENDULUM
Arsenal machine tools home workshop, it is useful to fill up the circular saw. Pin CE on the workbench, next to the plumbing Vice, in which clamped the workpiece. Working tool saws —...
