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
EKSPRESS-OPTIKA
"Bespectacled" they know that most victims are not glass and frame: breaks down on the bridge of his nose, bursts into tight spots. If no spare points, you can use a simple Express...
THE FIRST SNOWMOBILE, BUT A SUCCESSFUL ONE
The author of this material is a schoolboy from a distant Siberian city. When the editorial office received his letter describing the ski-track snowmobile he had built, he was 15 years old...