If you have a lot of time to measure the volume of the same liquid or granular materials, make the appropriate mark on the measuring circle, glued at the right level strips of adhesive medical tape. At the same time can be done on them and the labels which are specified died.
Recommend to read
QUIET “LITTLE ONE”
Most amateur constructors are constrained not only in space (usually they have only a small corner in their apartment for pursuing their favorite hobby), but also in time (they can...
CORD CLASS F2B
Beginners only pilots first, as a rule, "fly" for simple models, is designed for small "cubic capacity" of the engine. They learn to manage to work out a complex aerobatic figures. Over...