If a barrel is poured in the vegetable garden or cistern in the shower — the water level in them will tell you a simple water-measuring device consisting of a Styrofoam float and stuck to his line or rod with the labels. For greater stability of water-measuring devices are required on the barrel to put the bar with the guide bushing.
Recommend to read
GLISSER-FLUE
...Lined up at the edge of the pond, the boys tensely listened to the pre-launch countdown seconds. In the right hand each refined model of aeropittura, left index finger slightly...
“ANGELS” IN THE SKY OF SPAIN
Dive bomber, the Hs-123. After the First world war power aviation enterprises in Germany decreased significantly. The restrictions imposed by the Versailles Treaty, in fact, deprived the...
