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
SHARE THE LIGHT
Had dinner, turned on the TV and settled down on the couch by the light of an ordinary crystal chandeliers. Light bulbs and the chandelier sparkle and hurt the eyes, the screen...
A LOCOMOTIVE WITHOUT STEAM AND SMOKE
The first domestic locomotive ВЛ19. In the late 1920-ies in our country began the so-called industrialization, whose main objective was to lift the industry to the level of the leading...
