The soles of the feet when digging the ground, will not be so uncomfortable if the shoulders of the shovel to pull the trim rubber or plastic garden hose.
During operation, the hose is not slipping, the nozzle should be made from a single piece, having in the middle a cutout for the shaft.
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ROCKET J. HAROLD
At the world Cup 1978, held in the city of Yambol (Bulgaria) in the class RC raketoplana S-4-D (the maximum mass of 240 g, the total impulse of the propulsion system 10-40 n*s) a...
THE SHELF ON THE LADDER
Sometimes when working on a ladder is required to extend, trim some detail, and to use the necessary tools. Great convenience will create a removable stopni-workbench, which is easy to...
