For the case when screw cap cans, as they say, stuck and does not open, use a simple device made of a wooden block and the old lap belt. Guides buckle do not necessarily, but to nail the strap to the bar, and on the other side to drive the pin under the belt holes needed. How to use this “key”, it is clear from the figure.
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CAP VS SAWDUST
When drilling holes in the ceiling sawdust get in your eyes, that interfere. To avoid this, put the drill bit on the cap of the cream or shampoo.
School hydrometeorological station
"The school automatic weather station, constructed by students of secondary school No. 5 in the city of Klin, is of technical interest. The precipitation sensor and its registration on the...
