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Look up Τ, τ in Wiktionary, the free dictionary.
Greek alphabet
Α α Alpha Ν ν Nu
Β β Beta Ξ ξ Xi
Γ γ Gamma Ο ο Omicron
Δ δ Delta Π π Pi
Ε ε Epsilon Ρ ρ Rho
Ζ ζ Zeta Σ σ ς Sigma
Η η Eta Τ τ Tau
Θ θ Theta Υ υ Upsilon
Ι ι Iota Φ φ Phi
Κ κ Kappa Χ χ Chi
Λ λ Lambda Ψ ψ Psi
Μ μ Mu Ω ω Omega
Obsolete letters
Ϝ ϝ Digamma Ϻ ϻ San
Ϙ ϙ Qoppa Ϡ ϡ Sampi
Ϛ ϛ Stigma Ϸ ϸ Sho
diacritics

Tau (uppercase Τ, lowercase τ) is the 19th letter of the Greek alphabet. In the system of Greek numerals it has a value of 300. This letter in English is pronounced taʊ (as the first syllable in "tower"), but in Modern Greek, this letter's name is pronounced tæf. This is because the pronunciation of the combination of Greek letters αυ has changed from ancient to modern times from one of "au" to either "av" or "af" (see Greek language#Orthography). Wikipedia does not have an article with this exact name. ... Wiktionary (from wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ... Image File history File links Greek_alphabet_tau. ... The Greek alphabet is an alphabet that has been used to write the Greek language since about the 9th century BCE. It was the first alphabet in the narrow sense, that is, a writing system using a separate symbol for each vowel and consonant alike. ... Alpha (uppercase Α, lowercase α) is the first letter of the Greek alphabet. ... For other uses, see Nu. ... Beta (upper case Î’, lower case β) is the second letter of the Greek alphabet. ... Look up Ξ, ξ in Wiktionary, the free dictionary. ... Gamma (uppercase Γ, lowercase γ) is the third letter of the Greek alphabet. ... Omicron (upper case Ο, lower case ο, literally small o) is the 15th letter of the Greek alphabet. ... Look up Δ, δ in Wiktionary, the free dictionary. ... For other uses, see Pi (disambiguation) Pi (upper case Π, lower case Ï€ or Ï–) is the sixteenth letter of the Greek alphabet. ... Look up Ε, ε in Wiktionary, the free dictionary. ... Rho (upper case Ρ, lower case ρ) is the 17th letter of the Greek alphabet. ... Zeta (upper case Ζ, lower case ζ) is the sixth letter of the Greek alphabet. ... Look up Σ, σ, Ï‚ in Wiktionary, the free dictionary. ... Look up Η, η in Wiktionary, the free dictionary. ... Look up Θ, θ in Wiktionary, the free dictionary. ... Upsilon (upper case , lower case ) is the 20th letter of the Greek alphabet. ... For programming language, see Iota and Jot. ... Look up Φ, φ in Wiktionary, the free dictionary. ... For other uses, see Kappa (disambiguation). ... Chi (upper case Χ, lower case χ) is the 22nd letter of the Greek alphabet. ... Look up Λ, λ in Wiktionary, the free dictionary. ... Look up Ψ, ψ in Wiktionary, the free dictionary. ... Look up Îœ, μ in Wiktionary, the free dictionary. ... Look up Ω, ω in Wiktionary, the free dictionary. ... Digamma (upper case , lower case ) is an archaic letter of the Greek alphabet, used primarily as a Greek numeral. ... San (uppercase , lowercase ) was a letter of the Greek alphabet, appearing between Pi and Qoppa in alphabetical order, corresponding in position although not in name to the Phoenician tsade. ... Qoppa Qoppa is an obsolete letter of the Greek alphabet and has a numeric value of 90. ... Sampi (Upper case Ϡ, lower case ϡ) is an obsolete letter of the Greek alphabet and has a numeric value of 900. ... Stigma is a ligature of the Greek letters sigma and tau, sometimes used nowadays to represent the Greek numeral 6. ... Sho (uppercase , lowercase ) was a letter added to the Greek alphabet in order to write the Bactrian language. ... In the Greek alphabet, vowels can carry diacritics, namely accents and breathings. ... The Greek alphabet is an alphabet that has been used to write the Greek language since about the 9th century BCE. It was the first alphabet in the narrow sense, that is, a writing system using a separate symbol for each vowel and consonant alike. ... Greek numerals are a system of representing numbers using letters of the Greek alphabet. ... Main article: Greek language Modern Greek (Νέα Ελληνικά or Νεοελληνική, lit. ... Greek ( IPA: or IPA: — Hellenic) is an Indo-European language with a documented history of 3,500 years, the longest of any single language in that language family. ...


The symbolism of the cross was connected not only to the letter chi, but also to tau, the equivalent of the last letter in the Phoenician and Old Hebrew alphabets, and which was originally cruciform in shape. A Greek cross (all arms of equal length) above a saltire, a cross rotated by 45 degrees A famous Armenian khachkar at Goshavank (Notice the cross). ... Chi (upper case Χ, lower case χ) is the 22nd letter of the Greek alphabet. ... The Phoenician alphabet is a continuation of the Proto-Canaanite alphabet, by par convention taken to begin with a cut-off date of 1050 BC. It was used by the Phoenicians to write Phoenician, a Northern Semitic language. ...


Scientific uses

The lower-case letter τ is used as a symbol for:

It has been suggested that this article or section be merged with Moment (physics). ... Mechanics (Greek ) is the branch of physics concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effect of the bodies on their environment. ... The tau lepton (often called the tau or occasionally the tauon) is a negatively charged elementary particle with a lifetime of 3×10−13 seconds and a high mass of 1777 MeV (compared to 939 MeV for protons and 0. ... Thousands of particles explode from the collision point of two relativistic (100 GeV per ion) gold ions in the STAR detector of the Relativistic Heavy Ion Collider. ... Spontaneous emission is the process by which a molecule in an excited state drops to the ground state, resulting in the creation of a photon. ... In physics and engineering, the time constant, usually denoted by the Greek letter τ (tau), characterizes the frequency response of a first-order, linear time-invariant (LTI) system. ... resistor-capacitor circuit (RC circuit), or RC filter or RC network, is one of the simplest analogue electronic filters. ... In relativity, proper time is time measured by a single clock between events that occur at the same place as the clock. ... Two-dimensional analogy of space-time curvature described in General Relativity. ... In probability theory and statistics, correlation, also called correlation coefficient, is a numeric measure of the strength of linear relationship between two random variables. ... In statistics, rank correlation is the study of relationships between different rankings on the same set of items. ... The golden section is a line segment sectioned into two according to the golden ratio. ... Look up Φ, φ in Wiktionary, the free dictionary. ... In number theory, a cusp form is a particular kind of modular form, distinguished in the case of modular forms for the modular group by the vanishing in the Fourier series expansion of the constant coefficient a0. ... Number theory is the branch of pure mathematics concerned with the properties of numbers in general, and integers in particular, as well as the wider classes of problems that arise from their study. ... A giant Hubble mosaic of the Crab Nebula, a supernova remnant Astronomy is the science of celestial objects (such as stars, planets, comets, and galaxies) and phenomena that originate outside the Earths atmosphere (such as auroras and cosmic background radiation). ... A substance or object that is opaque is neither transparent nor translucent. ... Tau is a protein associated with microtubules in neurones. ... Biochemistry is the study of the chemical processes and transformations in living organisms. ... A representation of the 3D structure of myoglobin, showing coloured alpha helices. ... Microtubules are one of the components of the cytoskeleton. ... Shear stress is a stress state where the stress is parallel to a face of the material, as opposed to normal stress when the stress is perpendicular to the face. ... Stress is the internal distribution of force per unit area that balances and reacts to external loads applied to a body. ... Continuum mechanics is a branch of physics (specifically mechanics) that deals with continuous matter, including both solids and fluids (i. ... This article or section is not written in the formal tone expected of an encyclopedia article. ...

Other uses

  • In ancient times, a symbol for life and/or resurrection, whereas the 8th letter of the Greek alphabet, theta, was considered the symbol of death.
  • In Biblical times, the Tau cross was put on men to distinguish those who lamented sin, although newer versions of the Bible have replaced the ancient term “Tau” with "mark" (Ezekiel 9:4). Resonating with this, the Hebrew form of the word Tau is pronounced tov, which means "marking."
  • Tau is usually considered as the symbol of Franciscan orders due to St. Francis' love for it, symbol of the redemption and of the Cross. Almost all franciscan churches have painted a tau with two crossing arms, both with stigmata, the one of Jesus and the other of Francis; usually members of the Secular Franciscan Order wear a wooden τ in a string with three knots around the neck.
  • A measure of the perceived motion-gap in General Tau Theory of perceptuomotor control.

For other uses, see Life (disambiguation). ... Look up Resurrection in Wiktionary, the free dictionary. ... Look up Θ, θ in Wiktionary, the free dictionary. ... This article or section does not adequately cite its references or sources. ... The Tau cross The Cross of Tau; also called the Tau Cross, St. ... The Order of Friars Minor and other Franciscan movements are disciples of Saint Francis of Assisi. ... Saint Francis of Assisi (born in Assisi, Italy, ca. ... A Greek cross (all arms of equal length) above a saltire, a cross rotated by 45 degrees A famous Armenian khachkar at Goshavank (Notice the cross). ... Francis of Assisi, an early stigmatic. ... The Order of Friars Minor and other Franciscan movements are disciples of Saint Francis of Assisi. ... A theory of perceptuomotor control based on the ecological invariant, tau. ...

Miscellaneous

An essay written around 160 CE, attributed to Lucian, a mock legal prosecution called The Consonants at Law — Sigma v. Tau in the Court of Seven Vowels contains a reference to the attribution. Sigma petitions the court to sentence Tau to death by crucifixion, saying: Events Births Tertullian, Christian writer (possible date) Guan Yu, one of the Five Tiger Generals of the Three Kingdoms period of Chinese history (possible date). ... Lucian Lucian of Samosata (Greek, Λουκιανὸς Σαμοσατεύς, Latin, Lucianus; c. ... Sigma (upper case Σ, lower case σ, alternative ς) is the 18th letter of the Greek alphabet. ...

Men weep, and bewail their lot, and curse Cadmus with many curses for introducing Tau into the family of letters; they say it was his body that tyrants took for a model, his shape that they imitated, when they set up structures on which men are crucified. Stauros (cross) the vile engine is called, and it derives its vile name from him. Now, with all these crimes upon him, does he not deserve death, nay, many deaths? For my part I know none bad enough but that supplied by his own shape — that shape which he gave to the gibbet named stauros after him by men.

  Results from FactBites:
 
Tau (Warhammer 40,000) - Wikipedia, the free encyclopedia (4347 words)
The Tau are a relatively young race, but their technology is extremely advanced (inferior only to the Necrons and the Eldar), so much so that the Imperium of Man has of late been wondering if the technological advances were all the Tau's doing.
The Tau are another interstellar society that manages to combat all its threats and thrive, without nearly as much of the draconian oppressiveness and extreme brutality of the Imperium's regime and thus a manner of emphasizing how far the Imperium has fallen from a modern viewpoint.
The Tau characters in the novel also contrast with the brutish, militant humans with their, calm, patient and quiet personalities which expose philosophies similar to the real-world religion that is a homonym of their name: Taoism.
Tau - Wikipedia, the free encyclopedia (478 words)
Tau (upper case Τ, lower case τ) is the 19th letter of the Greek alphabet.
Tau in astronomy is a measure of opacity, or how much sunlight cannot penetrate the atmosphere.
Tau is the name of an island near Kilinailau, Greenwich Island, and Ocean Island.
  More results at FactBites »

 
 

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