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
OUT, BUT NOT IMMEDIATELY
One of the inconveniences in the design of many cars is that the interior light goes out immediately when closing the doors. There are, however, a special device to delay the power light...
A WOODEN SOLE
no Doubt — metal tool for flat planing of wood — all sorts of planers, jointer, etc. — has its advantages: does not warp from moisture easy to work with, reliable. However, even if it is...
