* Coherence time

Coherence time, τ, is calculated by dividing the coherence length by the phase velocity of light in a medium ; approximately given by

* Coherence time ( communications systems )

This equation is just an approximation, to be exact, see Coherence time.

* Coherence time

* Coherence time ( communications systems ), duration when a communication channel can be assumed to be constant

Once the fringes are obtained in the Michelson – Morley experiment, when one of the mirrors is moved away gradually, the time for the beam to travel increases and the infringes become dull and finally are lost, showing Temporal Coherence.

# REDIRECT Coherence time

* Coherence time

" Coherence and Incoherence in Historical Studies: From the Annales School to the New Cultural History ," New Literary History, olume 35, Number 2, Spring 2004, pp. 207 – 231 in Project Muse

Coherence length –

Coherence –

* Kees van Haperen ( 2002 ) Working Towards Information Superiority: Application Coherence for Digitisation Programmes – A Method for Coherently Defining Requirements for Future Command and Control Information Systems.

), The Current State of the Coherence Theory: Essays on the Epistemic Theories of Keith Lehrer and Laurence BonJour ( Dordrecht, Holland: Kluwer, 1989 ), pp. 276 – 92.

Beaugrande and Dressler define a text as a “ communicative occurrence which meets seven standards of textuality ” – Cohesion, Coherence, Intentionality, Acceptability, Informativity, Situationality and Intertextuality, without any of which the text will not be communicative.

* Coherence – defined as thinking, feeling and acting in the same way.

Fifteen statuettes were awarded, honoring artists, directors and other personalities of the filmmaking industry of the time for their works during the 1927 – 1928 period.

However, Ancient Egyptian is highly divergent from Proto-Afroasiatic ( Trombetti 1905: 1 – 2 ), and considerable time must have elapsed in between them.

The oldest known name for Anatolia, " Land of the Hatti " was found for the first time on Mesopotamic cuneiform tablets from the period of the Akkadian dynasty ( 2350 – 2150 BC ).

" This was thought to favour the doctrine of absolute non-resistance, and accordingly the convention parliament enacted the form that has been in use since that time – " I do sincerely promise and swear that I will be faithful and bear true allegiance to His Majesty ..."

While accompanying Mallowan on countless archaeological trips ( spending up to 3 – 4 months at a time in Syria and Iraq at excavation sites at Ur, Ninevah, Tell Arpachiyah, Chagar Bazar, Tell Brak, and Nimrud ), Christie not only wrote novels and short stories, but also contributed work to the archaeological sites, more specifically to the archaeological restoration and labeling of ancient exhibits which includes tasks such as cleaning and conserving delicate ivory pieces, reconstructing pottery, developing photos from early excavations which later led to taking photographs of the site and its findings, and taking field notes.

* 1911 – During the Battle of Deçiq, Dedë Gjon Luli Dedvukaj, leader of the Malësori Albanians, raises the Albanian flag in the town of Tuzi, Montenegro, for the first time after George Kastrioti ( Skenderbeg ).

* 1900 – Casey Jones dies in a train wreck in Vaughn, Mississippi, while trying to make up time on the Cannonball Express.

* 1947 – In Nevada, the Boulder Dam is renamed Hoover Dam a second time.

* 1993 – Virgin Radio broadcasts for the first time in the United Kingdom.

* 1944 – The United States Forest Service and the Wartime Advertising Council release posters featuring Smokey Bear for the first time.

Over half of the tax revenues in the January – August 2008 time period were generated from value-added taxes ( VAT ).

* 1918 – Women enlist in the United States Marine Corps for the first time.

* 1954 – Radio Pakistan broadcasts the " Qaumī Tarāna ", the national anthem of Pakistan for the first time.

Australia had lost 2 – 1 during a tour of the West Indies in 1964 – 65, the first time they had lost a series to any team other than England.

It was the first time since 1894 – 95 that a team following on had won a Test match.

With several England players having retired or been injured after the 2005 series, Australia regained The Ashes in the 2006 – 07 series with a convincing 5 – 0 victory, the second time an Ashes series has been won by that margin.

The 2010 – 11 Ashes series is the only one in which a team has won three Tests by innings margins and it was the first time England had scored 500 or more four times in a single series.

* Worst-case execution time – determines the longest time that a piece of software can take to run

* Time-series analysis – methods that attempt to understand a sequence of data points spaced apart at uniform time intervals

* 1989 – Pakistan is re-admitted to the Commonwealth of Nations after having restoring democracy for the first time since 1972.

The most important Canadian theorist was an American immigrant, Henry Wise Wood, president of the United Farmers of Alberta ( UFA ) during that movement's time as the governing party of the province ( 1921 – 1935 ).

* 1786 – Mont Blanc on the French – Italian border is climbed for the first time by Jacques Balmat and Dr. Michel-Gabriel Paccard.