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
INSULATOR FROM THE JAR
Tins of film can be used if necessary as insulators or junction boxes to protect the connections from two to four and even six electric wires. To do this, the lid of the jar need to do...
“ARCHIMEDES” — A COMBAT SUBMARINE STEAMER
Steam-powered submarines are regarded today as something of a design curiosity, although the motives for their creation were entirely rational. The French set the fashion here. Despite the...
