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.
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SOFT TWEEZERS
During chemical processing of photographic plates and papers usually use medical tweezers (it can be purchased in the pharmacy). However, the notch in the jaws often damage the emulsion...
CLASS “A-3” the mass is, the skill will be!
This is one of the most heavy and high-speed models. It belongs to the class "A-3" according to the Rules NAVIGA. The model consists of the following main components: hull, floats, motor...
