The idea of compression of air and practical use of its in new condition not new. Alexander Belyaev in his work “the Seller of air” introduces us to the prospects of this direction. The hero of his works Bailey clutched the air in the balls and kept them at a temperature equal to absolute zero.NOW DON’T SLIP OFF
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 Read more…










