Gout causes a painful, swollen joint that's so severe that the weight of bed sheets can cause distress. There may also be more than one joint affected with gout. With gout, uric acid -- a normal chemical in the body -- forms crystals that deposit in the joints, causing inflammation and pain.
China has been the source of many innovations, scientific discoveries and inventions. This includes the Four Great Inventions: papermaking, the compass, gunpowder, and printing (both woodblock and movable type). The list below contains these and other inventions in China attested by archaeology or history.
History of Chinese Invention-The Invention of Paper. The word paper is derived from the word papyrus, which was a plant found in Egypt along the lower Nile River. About 5,000 years ago, Egyptians created sheets of papyrus by harvesting, peeling and slicing the plant into strips.