To the Day of Russian Science To the 190th anniversary of D.I. Mendeleev and the 155th anniversary of the Mendeleev's Periodic Table Mendeleev was called Russian Leonardo not only for his outward similarity to the famous Italian. Like Leonardo da Vinci, the range of Mendeleev’s scientific interests and successes is amazing. "Chemistry and physics, hydrodynamics and technology, oil and coal exploration, smokeless powder and oil processing, flour, starch, petroleum jelly and distillation, glass production and farming techniques, mastering the path through the North Pole and flying alone on a balloon to observe a solar eclipse, the customs tariff and the [...]