To eliminate the need to carry a ruler or tape measure, apply a linear division on the comb, which is always in my pocket.
N. TURULIN, Taganrog
Recommend to read
THE SOVIET “LIGHT HEAVYWEIGHTS”
The state of the Soviet cruise fleet in the early 30-ies of the last century can hardly be described as sad. The last ships of this class light cruisers of "Svetlana" have not been...
WINNING “SKYSCRAPER”
Present to the readers a model rocket class S1B (altitude) with a total impulse of engines to 5 N·s allowed A. Mityureva for a number of years show high sports results (1990— second...