Birthday vodka Photo:In his work, the chemist studied the specific gravity of alcohol and water solutions depending on their concentration and temperature. The water-alcohol mixture with the coveted concentration of 33.4% by weight or 40% by volume is discussed in the fourth and fifth chapters of the dissertation: "On the greatest compression that occurs during the mutual dissolution of anhydrous alcohol and water" and "On the change in specific gravity when alcohol is combined with water ". Many myths and legends are connected with Mendeleev about. For example, there is a legend that a scientist developed a recipe called "Moscow special", later - "Moscow special", which in 1894 was patented by the Russian government as Russian national vodka. In fact, this strong drink, or semi-bar, was widespread in Russia back in the 16th century. For the first time the word "vodka" in an official document appears on June 8, 1750 in the decree of Empress Elizabeth I "Who is allowed to have cubes for the movement of vodkas." However, for a long time, the names "hot, simple, table wine", "pennik", "half-grain" or "moonshine" appeared in trade statements and state acts. They checked the quality of vodka as follows: if during burning the volume decreased by half, then in your hands you are not holding alcohol and water, but real gold. Recently, the soloist of the group "VIA Gra" has become the face of vodka. The sexy singer allowed her to be placed on the label of the intoxicating drink.
