Tau (uppercase Τ, lowercase τ; Greek: ταυ ) is the 19th letter of the Greek alphabet. In the system of Greek numerals it has a value of 300.

The name in English is pronounced /taʊ/, but in modern Greek it is . This is because the pronunciation of the combination of Greek letters αυ has changed from ancient to modern times from one of to either or, depending on what follows (see Greek orthography).

Tau was derived from the Phoenician letter taw . Letters that arose from tau include Roman T and Cyrillic Te (Т, т).

The letter occupies the Unicode slots U+03C4 (lowercase) and U+03A4 (uppercase). In HTML, they can be produced with named entities (τ and Τ), decimal references (τ and Τ), or hexadecimal references (τ and Τ).

Read more about Tau:  Modern Usage, Symbolism

Other articles related to "tau":

Sigma-Tau - Social and Environmental Responsibilities
... industrial sector in which it operates, Sigma-Tau considers it fundamentally important to act in absolute respect of ethical principles and existing legislation, and make every effort ... To this end, in 2002 Sigma-Tau adopted a Code of Ethics that clearly defines the behavioural rules and ethical principles that must be adhered to by ... In 1967 Sigma-Tau became equipped with a water conditioning plant ...
Tau, Norway
... Tau is a village in the municipality of Strand ... Tau has about 3000 inhabitants and is connected to Stavanger by ferry ... of puffed oats, because of the factory Tau Mølle AS ...
List Of Grade III Historic Buildings In Hong Kong - Sha Tin District
102 Sha Tin Tau Village Lam Ancestral Hall Nos.8, 10-14 Pai Tau Man Fat Tsz Main Temple Building Pai Tau Hang Ten Thousand Buddhas Monastery Man Fat Tsz Pagoda Pai Tau Hang ...
List Of Stars In Hyades - List of Stars of Hyades
09' 43.26 G7 HD 04 ... h 10m 42.3643s +18° 25' 23.710 F6V 45 Tau 04 h 11m 20.2818s +05° 31' 22.970 F4V HD 04 ... h 14m 32.3154s +23° 34' 29.801 G5 HD ... V* V992 Tau 04 h 26m 05.8601s +15° 31' 27.600 G0 V* ups Tau 04 h 26m 18.4635s +22° 48' 48.897 A8Vn HD 04 ... h 25m 57.3388s +05° 09' 00.521 F5 HD 04 ... h 26m 18.4997s +21° 28' 13.564 F8V V* V906 Tau ...
List Of Warhammer 40,000: Dawn Of War Characters - Tau - Shas'O Or'es'Ka
... Shas'O Or'es'Ka is the leader of the Tau Fire Caste strike force sent to the Kaurava system ... He seems much more merciful than O'Kais, who led Tau forces during the Dark Crusade - ordering his troops to allow the Eldar to flee when the Tau take their fortress, ss well as welcoming the remaining ... The Tau forces in the system are based in the secret, but heavily fortified Nan-Yanoi moon base, armed with the interplanetary Ar'Ka cannon ...