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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Today is a story about the buggy-350, created in the auto design laboratory of the city of Kharkov under the leadership of V. L. Taranukha. According to the results of our competition for...
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Booster "Diamond-A" in November 1965 into orbit the first French artificial satellite of the Earth. France became the third space power. Length of the rocket "Diamond-A" is about 19 m,...
