Longjing tea Longjing tea Longjing tea (; Standard Chinese pronunciation ), sometimes called by its literal translated name Dragon Well tea, is a variety of pan-roasted green tea from the area of Longjing Village in Hangzhou, Zhejiang Province, China. It is produced mostly by hand and renowned for its high quality, earning it the China Famous Tea title. Like most other Chinese green tea, Longjing tea leaves are roasted early in processing (after picking) to stop the natural oxidation process, which is a part of creating black and oolong teas. The actions of these enzymes are stopped by "firing" (heating in pans)
Tianchi basin Tianchi basin As precipitation was for important agriculture and food production, the Song Chinese mathematician and inventor Qin Jiushao developed a precipitation gauge that was widely used in 1247 during the Southern Song dynasty to gather meteorological data. Qin Jiushao later records application of rainfall measurements in the mathematical treatise "Mathematical Treatise in Nine Sections". The book also discusses problems using large snow gauges made from bamboo situated in mountain passes and uplands which are speculated to be first referenced to snow measurement. Tianchi basins were installed at provincial and district capitals and bamboo snow gauges were situated in mountain