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
STEREO PHONES
In high quality stereorelease made on the basis of heads 0,25 GD-10-290 from small radios. Their advantages are a wide frequency range, small harmonic distortion comfortable ear cushions...
WITH THE “BISON” ON THE HOOD
In the prewar years, the Soviet automotive industry did not spoil the country's economy by heavy vehicles. In small quantities it was producing vehicles medium-duty, established in the...
