Bipolar
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Bipolar may refer to:
Astronomy
- Bipolar nebula, a two-lobed, axially symmetric nebula
- Bipolar outflow, outflow of ejected materials from both poles of a star
Mathematics
- Bipolar coordinates, a type of orthogonal coordinates based on the Apollonian circles
- Polar set, sometimes called a bipolar set, is the polar of a polar set
- Bipolar theorem, a theorem relating the polar cone to its bipolar
Medicine
- Bipolar disorder, a psychiatric illness with subtypes Bipolar I disorder, Bipolar II disorder, and Bipolar NOS
- Bipolar neuron, a type of neuron
Music
- Bi-Polar (Vanilla Ice album)
- Bipolar (Up Dharma Down album)
- Bipolar (El Cuarteto de Nos album)
- Bipolar (Ray Volpe album)
- "Bipolar", a song by Gloria Trevi from her album De Película
Technology
- Bipolar electricity transmission, using a pair of conductors in opposite polarity
- Bipolar encoding, a type of line code where two nonzero values are used
- Bipolar violation, a violation of the bipolar encoding rules
- Bipolar electric motor, an electric motor with only two poles to its stationary field
- Bi-Polar (locomotive), a locomotive using a bipolar electric motor
- Bipolar signal, a signal that may assume either of two polarities, neither of which is zero
Transistors
- Bipolar junction transistor (BJT)
- Heterojunction bipolar transistor (HBT)
- Insulated-gate bipolar transistor (IGBT)
Other uses
- Bipolarity, polarity in international relations involving two states
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