- Nickel (Wikipedia)
Nickel is a chemical element; it has symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive, but large pieces are slow to react with air under standard conditions because a passivation layer of nickel oxide forms on the surface that prevents further corrosion. Even so, pure native nickel is found in Earth’s crust only in tiny amounts, usually in ultramafic rocks, and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth’s atmosphere.
- Taoism (Wikipedia)
Taoism or Daoism (/ˈtaʊɪzəm/ or /ˈdaʊɪzəm/) refers to a set of Chinese traditions and religions which emphasize living in harmony with the Tao (Chinese: 道; pinyin: Dào; Wade–Giles: Tao; lit. ‘Way’, ‘Path’). The Tao is generally defined as the source of everything and the ultimate principle underlying reality. The Tao Te Ching and the Zhuangzi are widely considered key Taoist texts.