- Italo Calvino (Wikipedia)
Italo Calvino (/kælˈviːnoʊ/, also US: /kɑːlˈ-/, Italian: [ˈiːtalo kalˈviːno]; 15 October 1923 – 19 September 1985) was an Italian writer and journalist. His best known works include the Our Ancestors trilogy (1952–1959), the Cosmicomics collection of short stories (1965), and the novels Invisible Cities (1972) and If on a winter’s night a traveler (1979).
- Manganese (Wikipedia)
Manganese is a chemical element; it has symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese was first isolated in the 1770s. It is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels. It improves strength, workability, and resistance to wear. Manganese oxide is used as an oxidising agent; as a rubber additive; and in glass making, fertilisers, and ceramics. Manganese sulfate can be used as a fungicide.