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
ELECTRIC CAR BATTERIES
You can make a simple model of the electric vehicle that will run on batteries. This will require: microelectrochemical PD-12A, flat battery, 4.5 V, two coils of No. 10 without thread,...
ON THE “VOLGA” WIDE
The 1960s, often called a time of change. In this decade changed all the styles and fashion, presidents and General secretaries, and the Soviet Union over Khrushchev's thaw and...
