In construction you often have to deal with the internal measurements. For example, to determine the distance between the form panels, the value of the window or doorway. A good assistant in such cases would be sliding ruler, made of tube and metal rod with applied risk. V. ANTIPIN
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WILL NOT CRACK
Paper tape glued to the joint between the door frame and the wall, protects the knot from cracking and shedding of plaster. Better to glue or PVA Bustilat. D. ZVEGINTSEV
SPORTING CODE OF RAKATOMALALA
From January of 1976 in our country came into force new rules for rocketmodeler sport. The editors asked me to tell them the Chairman of the Committee on rocket modeling of the FAS of...
