What if you need to draw a circle, and a compass at hand is not! To get out of this situation by making a simple compass of the bent and strapped to the pencil in the right place for a stylus pen, as shown in the figure.
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Before any home workshop maker sooner or later faces the problem of cleaning the workshop. However, it is not always possible to get by with a broom or brushes.
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To fill the tank of a car in the field — for example, from a barrel or tank of the other vehicle drivers often use a simple hose and the so-called "sucking method", creating a vacuum...
