Tau (disambiguation)

Tau ,Τ or τ, is the 19th letter of the Greek alphabet.

Tau may also refer to:

Geography

• Tau, Norway, a small town in Strand municipality, Rogaland county, Norway
• Tău, two villages in Romania
• Tau, American Samoa (Taʻū), an island in the Manuʻa Island Group of American Samoa
• Tau (Tongatapu), the most northern offshore island of Tongatapu, Tonga
• Tau (Haʻapai), an island in the southern part of Haʻapai, Tonga
• Tau (Botswana), a village at the base of the Tswapong Hills in Botswana

Science and technology

• Tau lepton, a fundamental particle
• Tau neutrino, a subatomic elementary particle
• Tau protein, a biochemical protein associated with microtubules
• Tau is the standard astronomical abbreviation for the constellation Taurus (constellation)
• Tau in circadian biology is a mutation in the Casein kinase 1 epsilon protein
• Rational Tau, a UML and SysML modeling tool
• Tau emerald, a species of dragonfly

Mathematics

• Tau test in statistics (tau-a, tau-b and tau-c tests or Kendall tau rank correlation coefficient)

Psychology

• Tau effect, a sensory illusion relating to the perception of space

Fiction

• Tau (Warhammer 40,000), an alien race from the fictional Warhammer 40,000 universe
• Tau, a character in the Battle Arena Toshinden fighting game series
• Pan Tau, hero of Czech films and television series
• Tau Zero, a novel by Poul Anderson
• Tau Volantis, a planet shown in Dead Space 3
• Tau Cannon, an energy weapon from Half-Life (video game)

Theology

• Tau (mythology), an evil spirit in Guaraní mythology
• The Cross of Tau, a Christian symbol so called due to its resemblance to the letter Tau

People

• Nicolae Țâu, a Moldovan politician who was Foreign Minister of Moldova between 1990 and 1993
• Jimmy Tau, South African football (soccer) player
• Tau (rapper), a Polish rapper

As an acronym

• TAU (spacecraft), a proposal to send a space probe to a thousand astronomical units from the Earth
• Tel Aviv University
• Texila American University
• Anna University of Technology, Tiruchirappalli
• Tourist Association of Ukraine

See also

• Tau for uses of the Greek letter Τ/τ