Researchers combine quantum dot 'atoms' and create new 'molecules'

Are you ready for the future? Back in 1869, Russia's Dmitri Mendeleev began to classify the elements according to their chemical properties, giving rise to the Periodical Table of Elements. "I saw in a dream a table where all elements fell into place as required. Awakening, I immediately wrote it down on a piece of paper," Mendeleev recalled.