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.
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Pliers and carpal expander, which is sold in any store "Sports" is all that is necessary for making the simplest grip. A. KOTLOVSKY, Boguchansk, Krasnoyarsk Krai
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In October 1996 in the Udmurt Republic celebrated the 65th anniversary of the system of children's technical creativity. In 1931 in Izhevsk was opened the first children's technical...
