Not only plastic, but also wood rulers, especially the long, at carrying out with their help lines are often displaced under the pressure of the pencil or ruling pen. This does not happen, if a measuring instrument to give a small deflection, heating it over the middle of the steam jet from the spout of a boiling kettle. Now, pressing a line of hand tighter squeeze its middle, but the ends. The line will not “go” and if one of the plane covered with a layer of rubber cement. But this method is worse: to move the tool across the paper becomes more difficult. Yu FEDCHUK
Recommend to read
ON THREE SIDES
Anyone who has had to work with a shovel, knows how hard it is to dig the ground, overgrown with grass, covered with a dense layer of turf or "reinforced" by the roots of trees and...
JAPANESE KA-MI WITH “SKIRTS”
In preparing attack on South East Asia command of the Japanese armed forces imagined the difficulties associated with overcoming the army of the numerous water hazards on the territory...
