- 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.
- Earth Abides (Wikipedia)
Earth Abides is a 1949 American post-apocalyptic science fiction novel by George R. Stewart. The novel tells the story of the fall of civilization from deadly disease and the emergence of a new culture with simpler tools. Set in the 1940s in Berkeley, California, the story is told by Isherwood Williams, who emerges from isolation in the mountains to find almost everyone dead.