Sunrise

Sunrise or sun up is the instant at which the upper edge of the Sun appears over the eastern horizon in the morning. The term can also refer to the entire process of the Sun crossing the horizon and its accompanying atmospheric effects.

Terminology

"Rise"

Although the Sun appears to "rise" from the horizon, it is actually the Earth's motion that causes the Sun to appear. The illusion of a moving Sun results from Earth observers being in a rotating reference frame; this apparent motion is so convincing that most cultures had mythologies and religions built around the geocentric model, which prevailed until astronomer Nicolaus Copernicus first formulated the heliocentric model in the 16th century.

Architect Buckminster Fuller proposed the terms "sunsight" and "sunclipse" to better represent the heliocentric model, though the terms have not entered into common language.

Beginning and end

Astronomically, sunrise occurs for only an instant: the moment at which the upper limb of the Sun appears tangent to the horizon. However, the term sunrise commonly refers to periods of time both before and after this point:

Song

A song is a single (and often standalone) work of music intended to be sung by the human voice with distinct and fixed pitches and patterns using sound and silence and a variety of forms that often include the repetition of sections. Written words created specifically for music or for which music is specifically created, are called lyrics. If a pre-existing poem is set to composed music in classical music it is an art song. Songs that are sung on repeated pitches without distinct contours and patterns that rise and fall are called chants. Songs in a simple style that are learned informally are often referred to as folk songs. Songs that are composed for professional singers are called popular songs. These songs, which have broad appeal, are often composed by professional songwriters, composers and lyricists. Art songs are composed by trained classical composers for concert performances. Songs are performed live and recorded. Songs may also appear in plays, musical theatre, stage shows of any form, and within operas.

Avalon

Avalon (/ˈævəˌlɒn/; Welsh: Ynys Afallon; probably from afal, meaning "apple") is a legendary island featured in the Arthurian legend. It first appears in Geoffrey of Monmouth's 1136 pseudohistorical account Historia Regum Britanniae ("The History of the Kings of Britain") as the place where King Arthur's sword Excalibur was forged and later where Arthur was taken to recover from his wounds after the Battle of Camlann. Avalon was associated from an early date with mystical practices and people such as Morgan le Fay.

Etymology

Geoffrey of Monmouth referred to it in Latin as Insula Avallonis in the Historia. In the later Vita Merlini he called it Insula Pomorum the "isle of fruit trees" (from Latin pōmus "fruit tree"). The name is generally considered to be of Welsh origin (though an Old Cornish or Old Breton origin is also possible), derived from Old Welsh aball, "apple/fruit tree" (in later Middle Welsh spelled avall; now Modern Welsh afall). In Breton, apple is spelled "aval"/ "avaloù" in plural. It is also possible that the tradition of an "apple" island among the British was influenced by Irish legends concerning the otherworld island home of Manannán mac Lir and Lugh, Emain Ablach (also the Old Irish poetic name for the Isle of Man), where Ablach means "Having Apple Trees" – derived from Old Irish aball ("apple")—and is similar to the Middle Welsh name Afallach, which was used to replace the name Avalon in medieval Welsh translations of French and Latin Arthurian tales. All are etymologically related to the Gaulish root *aballo- (as found in the place name Aballo/Aballone, now Avallon in Burgundy or in the Italian surname Avallone) and are derived from a Common Celtic *abal- "apple", which is related at the Proto-Indo-European level to English apple, Russian яблоко (jabloko), Latvian ābele, et al.