Pouring solutions of chemicals in the bottle, Amateurs are plastic or glass funnels. First trouble do not deliver: special ribs on the outer surface do not allow them to fit snugly to the necks, and displaced fluid with the air out of the bottles without interference. Edge for glass can be formed by bending, as shown in the figure, the cut copper wire Ø 1 mm.
A. KAMALOV, Obninsk, Kaluga region
Recommend to read
TERRIBLE, BUT NOT THE SHOOTER
These missiles were never used in combat. Nevertheless, they played a significant role in the balance of power between opposing blocs during the "cold war". The work done in NII-88 in...
SO THE RESEMBLANCE WAS COMPLETE
For the manufacture of parts for models of artillery and torpedo armament of the marine models usually spent a lot of time, it is not always possible to achieve full similarity. Some of...
