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.
Ancient people were a pretty clever bunch. They invented many things to make their life more comfortable and fun, things we still use today like fire, the wheel, the sailboat, paper, silk, kites, tea, umbrellas, ice cream and many more! advertisement. advertisement.