Conductor
Encyclopedia
Conductor or conduction may refer to:
In science:
In music:
In other:
In mathematics:
In science:
- Electrical conductorElectrical conductorIn physics and electrical engineering, a conductor is a material which contains movable electric charges. In metallic conductors such as copper or aluminum, the movable charged particles are electrons...
, a material allowing the flow of electric current - Electrical conduction, the movement of charged particles through an electrical conductor
- Fast ion conductorFast ion conductorIn solid-state ionics, fast ion conductors, also known as solid electrolytes and superionic conductors, are materials that act as solid state ion conductors and are used primarily in solid oxide fuel cells. As solid electrolytes they conduct due to the movement of ions through voids, or empty...
, a solid state electrical conductor which conducts due to the movement of ions - Heat conduction, the transfer of thermal energy through matter
- Electrical conduction system of the heartElectrical conduction system of the heartThe normal intrinsic electrical conduction of the heart allows electrical propagation to be transmitted from the Sinoatrial Node through both atria and forward to the Atrioventricular Node. Normal/baseline physiology allows further propagation from the AV node to the ventricle or Purkinje Fibers...
In music:
- Conductor, a person who leads a musical ensemble by way of visible gestures known as conductingConductingConducting is the art of directing a musical performance by way of visible gestures. The primary duties of the conductor are to unify performers, set the tempo, execute clear preparations and beats, and to listen critically and shape the sound of the ensemble...
- Conductor (album), an album by indie rock band The Comas
- Conduction, a type of structured free improvisation in music notably practiced by Butch Morris
In other:
- Conductor (transportation)Conductor (transportation)A conductor is a member of a railway train's crew that is responsible for operational and safety duties that do not involve the actual operation of the train. The title of conductor is most associated with railway operations in North America, but the role of conductor is common to railways...
, a person who sells and checks tickets on a bus, train, etc. - Conductor (architecture), a traditional name for a downspout
- Conductor (Army), a senior Warrant Officer appointment in the Royal Logistic Corps and its predecessors
- Conductor (underground railroad), operative of the Underground Railroad of the 19th century United States helping move slaves to freedom
- Mr. ConductorMr. ConductorMr. Conductor was a character in the late-'80s-early-'90s children's TV series Shining Time Station and in Thomas and the Magic Railroad. Mr. Conductor was a small man who lived in the signal box in Shining Time's mural...
, a character in Shining Time Station and in Thomas and the Magic Railroad
In mathematics:
- Conductor (ring theory), an ideal of a ring that measures how far it is from being integrally closed
- Conductor of an abelian varietyConductor of an abelian varietyIn mathematics, in Diophantine geometry, the conductor of an abelian variety defined over a local or global field F is a measure of how "bad" the bad reduction at some prime is...
, a description of its bad reduction - Conductor of a Dirichlet character, the natural (smallest) modulus for a character
- Conductor (class field theory)Conductor (class field theory)In algebraic number theory, the conductor of a finite abelian extension of local or global fields provides a quantitative measure of the ramification in the extension. The definition of the conductor is related to the Artin map.-Local conductor:...
, a modulus describing the ramification in an abelian extension of local or global fields - In the theory of numerical semigroupNumerical semigroupIn mathematics, a numerical semigroup is a special kind of a semigroup. Its underlying set is the set of all nonnegative integers except a finite number and the binary operation is the operation of addition of integers. Also, the integer 0 must be an element of the semigroup...
s, the conductor of a numerical semigroup (also called the Frobenius number of the semigroup) is the greatest integer not in the semigroup.