- Krypton (from Ancient Greek: κρυπτός, romanized: kryptos ’the hidden one’) is a chemical element; it has symbol Kr and atomic number 36. It is a colorless, odorless noble gas that occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. Krypton is chemically inert.
- Yasnaya Polyana (Wikipedia)
Yasnaya Polyana (Russian: Я́сная Поля́на, IPA: [ˈjasnəjə pɐˈlʲanə], lit. ‘Bright Glade’) is a writer’s house museum, the former home of the writer Leo Tolstoy. It is 12 kilometres (7.5 mi) southwest of Tula, Russia, and 200 kilometres (120 mi) from Moscow.