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.
Recommend to read
THE BRITISH BOMBER AND THE NUCLEAR BOMB
(The end. Start at # 1 ’03) The CANBERRA bomber is an all-metal monoplane with a mid-wing and single-fin tail. The fuselage — semi-monocoque circular cross-section, consists of...
NEW TECHNOLOGY
With all the advantages of fiberglass hulls for model rockets the traditional process of production is highly labor-intensive and unsound. Meanwhile, the conversion gave the modelers a...
