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
THE AIR — SCOUT
The plane of distant radar detection E-1B TRACER. The idea of installing a radar plane to detect air targets first appeared in England in early 1936. But the preference nevertheless was...
MICROBALANCE
For the lubrication of parts in hard to reach areas convenient to use the oiler is made of end of life rod of a ballpoint pen. It can be done in a few minutes. To this end, the tweezers...
