The ordinary carpenter’s square — the right tool: it is easy to check or to mark the connection of the parts at right angles. However, he will be able to in addition to these functions and even measure the length of the parts, if you supply it with the proper scale. To do this, regardless of it metal or wood, it is easiest with the student line, gluing it on the long side of the polygon. V. GOLOVASHIN, Rybnoe, Ryazan region.
Recommend to read
RC MODEL HELICOPTER
Lately in the aviation modeling widespread flying models, radio controlled, including helicopters. For the first time such a model was demonstrated in 1959 at the all-Union competition...
SOLAR WATER DISTILLER
Who has not seen the transparent walls of the greenhouse are collected moisture drops? What if to collect it — it's distilled water, so the motorist and photographer, and Amateur...
