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
VAZ-2118 “the guelder-rose”
A new family of cars VAZ-2118 "the guelder-rose" is only the third in 35 years of existence, the Volga automobile plant — after "penny" VAZ-2101 and "chisel" VAZ-2108/2109 — really new,...
Fire from… water
Anyone who reads the description of the electrolyzer I developed will be convinced that a few liters of water are enough to obtain a high-temperature flame (200° C).
The high flame...
