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
MODEL ROCKET GLIDERS
Category S4. The rocket plane is an aircraft that is lifted into the air using the thrust of the rocket engine, and returns to earth planning with the engine off — using the aerodynamic...
“Flying hippopotamus”
The nuclear arms race between the United States and the Soviet Union in the second half of the 20th century is regarded as one of the defining chapters of modern history. A central episode...
