In practical terms, parallax is the apparent change in spatial relationships between elements in a three-dimensional scene that occurs when we alter our viewing position. Move slightly, and stationary objects located at different distances in the scene seem to shift their positions relative to each other.
When was tea invented? Who discovered caffeine? Legend has it that the first cup of tea was brewed in 2737 B.C. when dried leaves landed in a boiling cup of water served to the Chinese Emperor Shen Nung. From China, the idea of tea spread throughout the world. It was introduced into the United States in 1650 by Peter Stuyvesant when he brought it the colonists inhabiting New Amsterdam (what is now New York). Iced tea was invented at the St. Louis World's Fair in 1904.
Coffee Houses Curiously, it was the London coffee houses that were responsible for introducing tea to England. One of the first coffee house merchants to offer tea was Thomas Garway, who owned an establishment in Exchange Alley. He sold both liquid and dry tea to the public as early as 1657.