Plastic body ball point pen is often broken, especially at the tip, near the writing unit. Operational offer a way out: to tighten tight the rod in a paper tube, taped the edge of the strand. This “ball” will serve to securely purchase the new. N. ALIKIN, St. P etersburg
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DRAWING TABLE
Lightweight, foldable, occupying little space in the house, drawing a table can be made of chipboard or plywood with a thickness of 15-20 mm. Due to the simple design it is easy to do at...
GOOD TO BEEHIVE AND INCUBATOR
Applications I developed the thermostat is quite wide. It can be used, for example, to maintain the desired temperature in the vegetable stores, household incubators, in the hive....
