Binocular parallax, the apparent difference in position of an object as seen separately by one eye, and then by the other, the head remaining unmoved. Here is another way to understand what parallax is and what causes it. With one eye closed hold your thumb out in front of your open eye and put your thumb on top of a distant object. Now close the eye you are looking through and open the other eye while you hold your thumb steady on target.
Tea is nearly 5,000 years old and was discovered, as legend has it, in 2737 b.c. According to legend, the Shen Nong (or Shen Nung) , an early emperor was a skilled ruler, creative scientist and patron of the arts. He was called The Divine Healer. Numerous other medicinal plants were attributed to this legendary emperor.
An important aspect of the Russian tea culture is the ubiquitous Russian tea brewing device known as a samovar, which has become a symbol of hospitality and comfort. Tea in Russia was introduced in 1638, when a Mongolian ruler donated to Tsar Michael I four poods (65â70 kg) of tea. According to Jeremiah Curtin, it was possibly in 1636 that Vassili Starkov was sent as envoy to the Altyn Khan. As a gift to the Tsar, he was given 250 pounds of tea.