Corona discharge Corona discharge A corona discharge is an electrical discharge brought on by the ionization of a fluid such as air surrounding a conductor that is electrically charged. Spontaneous corona discharges occur naturally in high-voltage systems unless care is taken to limit the electric field strength. A corona will occur when the strength of the electric field (potential gradient) around a conductor is high enough to form a conductive region, but not high enough to cause electrical breakdown or arcing to nearby objects. It is often seen as a bluish (or other color) glow in the air adjacent to pointed metal
Mons (planetary nomenclature) Mons (planetary nomenclature) Mons (plural: montes, from the Latin word for "mountain") is a mountain on a celestial body. The term is used in planetary nomenclature: it is a part of the international names of such features. It is capitalized and usually stands after the proper given name, but stands before it in the case of lunar mountains (for example, there is a Martian mountain Arsia Mons and a lunar mountain Mons Argaeus). The term "tholus" ("dome") is used for names of smaller (especially domical) uplands, and the term "colles" ("hills") in names of groups of still smaller knobs. Peculiar