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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WHEEL SECRET
For those doing long trips on a Bicycle puncture of the camera wheel is a waste of time and effort. And if there is no spare wheel, very bad: stuck now with the patch and glue... For...
WITH THE BALL IN THORNS
Old children's ball cut in half and put on garden shears, protects hands when cutting thorny plants.
