Medical bubbles, and especially the opened vial is very fragile, and spill their contents sometimes very simple. To avoid this, use a “tortilla” of clay: recessed in her glass bottoms of tanks holding up, as if glued.
V. GOLOVASHIN, Rybnoe, Ryazan region.
Recommend to read
AND GRAPHITIZE
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...
IN THE ROLE OF A PULLER – SCREW
Met on the pages of "Model construction" describe the various mechanical instruments, including an improvised bit for the drill. I have been working with a power drill brand ИЭ1202 with...