15.09.18r. assoc. prof. Proskurina K.I. and the post-graduate student Yaremenko M.S. took part in the VIII festival of science popularization “Scientific picnics” on the round square of Freedom Square with the program “Flower Rainbow”. Spectators took an active part in experiments devoted to the study of special dyes – pigments, which determine the rich palette of plants with the help of microscopic analysis.