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
INSTEAD OF FUEL – CO2
The release of carbon dioxide industry miniature engines has caused many young technicians ' interest in the models in which you can use this reliable, silent, environmentally friendly...
MOSKVICH 400
He appeared on the streets of the capital shortly after the war, in 1947. At first glance the design of the car "Moskvin-400" was not fundamental innovations. Its main advantage was a...