If, during the filling of high capacity water (e.g. drums) intended for watering the garden, throwing a rubber ball of small size, its appearance over the edge of prompts to close the valve. Thereby eliminating the need for constant monitoring of the level of a cursory glance.
N. SVIRIDENKO, p. Pervomayskiy, Kazakhstan
Recommend to read
CARDS “HADI-ELECTRO”
At the start, during the competition, when all the machines are in several rows lined up in front of the white line, this card is easy to get lost among the brethren. The same wheel, the...
WAITING FOR HER CLOUDS
The learning model is simple. So fly it close and low. Good sports model can produce only an experienced hand. It seems self-evident, isn't it? But the glider, which refutes many...