
The sister with the cutting it took to draw a circle the diameter of which more than allows a compass. Rescued… a school ruler, which my dad drilled hole (see figure). The first of them, playing the role axis, is inserted a pin or awl, and the other to the desired distance from the tip of a pencil. Please circle any, up to 30 cm radius.
A. KOLTSOV, Arkalyk, Kazakhstan
Recommend to read
THE ETERNAL BUS
Judging by the works submitted to the contest by Cycling, and today they have solved two major technical problems: the creation of a roomy trunk with a bag or holdall and protection of...
SOLDERING GUN-UNIVERSAL
When installing the radio a lot of time to spend on processing wires. First of all you need to remove the insulation, clean, tinned with stinging, and then proceed to soldering. Except...