Electricity

Electricity is the set of physical phenomena associated with the presence and flow of electric charge. Electricity gives a wide variety of well-known effects, such as lightning, static electricity, electromagnetic induction and electric current. In addition, electricity permits the creation and reception of electromagnetic radiation such as radio waves.

In electricity, charges produce electromagnetic fields which act on other charges. Electricity occurs due to several types of physics:

Electricity (Elton John song)

"Electricity" is a song composed by Elton John and Lee Hall for the Billy Elliot the Musical.

Reception

It was John's 63rd—and to date last -- UK Top 40 hit, peaking at #4 on the UK Singles Chart. The song was included as a bonus track on the UK re-issue of Elton's album Peachtree Road.

Background

The song is sung by Billy Elliot in the stage production at his audition for a place at The Royal Ballet School in London. Billy is asked "What does it feel like, when you are dancing?" by one of the panel. Billy responds, hesitantly at first, "I really can't explain it... I haven't got the words..." And then (see full lyrics) the music takes hold, and he goes into an energetic song. Describes dancing as "Something that you can't control". After two verses, each with a chorus, Billy leaps into a frenetic dance; in this dance many skills such as acrobatics are used (the rhythm for this section of the instrumental varies from Billy to Billy, depending on each actor's dance strengths). The number concludes with another verse and Billy doing several pirouettes or tumbles. The most notable lyric in this piece is that of the title: 'Electricity sparks inside of me and I'm free, I'm free!" It was inspired by the scene in the film, which it follows closely, in which Billy describing dancing as "Electricity". His passion, shown in his description, is the implied reason for Billy's acceptance into The Royal Ballet School.

Electricity (album)

Electricity is a 1994 album by New Zealand pianist Peter Jefferies. It was released on the Ajax Records label. The album includes reworkings of previous Peter Jefferies tracks, "Wined Up" and "Crossover" (from a 1993 7" recorded with Stephen Kilroy), and a cover of Barbara Mannings' "Scissors".

Track listing

All songs written and composed by Peter Jefferies, except where noted. 

Personnel

References

External links

Nox

Nox may refer to:

Science and technology

Entertainment

Other uses

See also

Lux

The lux (symbol: lx) is the SI unit of illuminance and luminous emittance, measuring luminous flux per unit area. It is equal to one lumen per square metre. In photometry, this is used as a measure of the intensity, as perceived by the human eye, of light that hits or passes through a surface. It is analogous to the radiometric unit watts per square metre, but with the power at each wavelength weighted according to the luminosity function, a standardized model of human visual brightness perception. In English, "lux" is used in both singular and plural.

Explanation

Illuminance

Illuminance is a measure of how much luminous flux is spread over a given area. One can think of luminous flux (measured in lumens) as a measure of the total "amount" of visible light present, and the illuminance as a measure of the intensity of illumination on a surface. A given amount of light will illuminate a surface more dimly if it is spread over a larger area, so illuminance (lux) is inversely proportional to area when the luminous flux (lumens) is held constant.

Nyx

Nyx (English /ˈnɪks/;Ancient Greek: Νύξ, "Night";Latin: Nox) is the Greek goddess (or personification) of the night. A shadowy figure, Nyx stood at or near the beginning of creation, and mothered other personified deities such as Hypnos (Sleep) and Thanatos (Death), with Erebus (Darkness). Her appearances are sparse in surviving mythology, but reveal her as a figure of such exceptional power and beauty, that she is feared by Zeus himself.

Mythology and literature

Hesiod

In Hesiod's Theogony, Nyx is born of Chaos. With Erebus (Darkness), Nyx gives birth to Aether (Brightness) and Hemera (Day). Later, on her own, Nyx gives birth to Moros (Doom, Destiny), Ker (Destruction, Death), Thanatos (Death), Hypnos (Sleep), the Oneiroi (Dreams), Momus (Blame), Oizys (Pain, Distress), the Hesperides, the Moirai (Fates), the Keres, Nemesis (Indignation, Retribution), Apate (Deceit), Philotes (Friendship), Geras (Old Age), and Eris (Strife).

In his description of Tartarus, Hesiod locates there the home of Nyx, and the homes of her children Hypnos and Thanatos. Hesiod says further that Nyx's daughter Hemera (Day) left Tartarus just as Nyx (Night) entered it; continuing cyclicly, when Hemera returned, Nyx left. This mirrors the portrayal of Ratri (night) in the Rigveda, where she works in close cooperation but also tension with her sister Ushas (dawn).