- Chemistry (Wikipedia)
Chemistry is the scientific study of the properties and behavior of matter. It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances. Chemistry also addresses the nature of chemical bonds in chemical compounds.
- 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.
- If on a winter’s night a traveler (Wikipedia)
If on a winter’s night a traveler (Italian: Se una notte d’inverno un viaggiatore) is a 1979 novel by the Italian writer Italo Calvino. The postmodernist narrative, in the form of a frame story, is about the reader trying to read a book called If on a winter’s night a traveler. Each chapter is divided into two sections. The first section of each chapter is in second person, and describes the process the reader goes through to attempt to read the next chapter of the book they are reading. The second half is the first part of a new book that the reader (“you”) finds. The second half is always about something different from the previous ones. The book was published in an English translation by William Weaver in 1981.