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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This little car (Fig. 1) I did back in 1972, and it is already my second son, Sasha. He was only three years, but he leads the electric car is almost like a real chauffeur. The car...
RESCUE DOWEL
If the drilling hole in the concrete wall towards the drill catches a very durable stone, it is even a great tool with a well-sharpened carbide-tipped is powerless: the drill leads to...
