A mirrored disco ball

A disco ball, mirror ball, or ball mirror is a roughly spherical object that reflects light directed at it in many directions, producing a complex display. Its surface consists of hundreds or thousands of facets, nearly all of approximately the same shape and size, and each having a mirrored surface. Usually it is mounted well above the heads of the people present, suspended from a device that causes it to rotate steadily on a vertical axis so that stationary viewers experience beams of light flashing over them. Disco ball close up. ... Disco ball close up. ... A sphere is a symmetrical geometrical object. ... Facets are flat faces on geometric shapes. ... A mirror, reflecting a vase. ... A sphere rotating around its axis. ... The axis of rotation of a rotating body is a line such that the distance between any point on the line and any point of the body remains constant under the rotation. ...

What are now called "disco balls" were first used in nightclubs in the 1920s. An early example can be seen in the nightclub sequence of Berlin: Die Sinfonie der Großstadt, a German silent film from 1927. In the 1970s, these devices were a standard accompaniment to disco music, and by the end of the 20^th century, the name "disco ball" had largely eclipsed the earlier names that had been applied to the object. A nightclub (often dance club or club, particularly in the UK) is an entertainment venue which does its primary business after dark. ... A silent film is a film which has no accompanying soundtrack. ... The 1970s decade refers to the years from 1970 to 1979, also called The Seventies. ... Disco is a genre of dance-oriented pop music that was popularized in dance clubs (discothèques) in the mid-1970s, and which dominated mainstream pop until the late 1970s. ... (19th century - 20th century - 21st century - more centuries) Decades: 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s As a means of recording the passage of time, the 20th century was that century which lasted from 1901–2000 in the sense of the Gregorian calendar (1900–1999...

Miniature disco balls are sold as novelties and used for a number of decorative purposes, including dangling from the rear-view mirror of an automobile. A novelty is a small manufactured adornment, especially a personal adornment. ... The rear-view mirror of a Mazda 626. ...

With the appearance of infrared networks, disco balls have found a new application, as a method of dispersing the infrared signals.

The world's largest rotating disco ball is situated in the ABC Nightclub in Glasgow, Scotland.^[1] “Glaswegian” redirects here. ... This article is about the country. ...

Pink Floyd used a disco ball on their 1987 and 1994 world tours. The disco ball used on the 1987 tour was somewhat larger than normal but nowhere near as large as the disco ball used on the 1994 tour. This particular disco ball is one of the largest in the world. 4.9 metres in diameter, it rises to a height of 21.3 metres before opening to a width of 7.3 metres, revealing a 12 kilowatt Phobeus HMI lamp.^[2] Both can be seen on the video of each tour: "Delicate Sound of Thunder and "P*U*L*S*E" during the song "Comfortably Numb". Pink Floyd are an English rock band that initially earned recognition for their psychedelic rock music, and, as they evolved, for their avant-garde progressive rock music. ... For other uses, see Watt (disambiguation). ... An HMI on a stand. ... Delicate Sound of Thunder is a Pink Floyd concert video taken from the A Momentary Lapse of Reason concert tour. ... P*U*L*S*E is a Pink Floyd concert video taken from the October 20, 1994 concert at Earls Court Exhibition Centre, London, in The Division Bell tour, which is currently available on DVD. There was considerable delay in the release of the DVD edition of P*U*L... The Wall Disc Two track listing Bring the Boys Back Home (5) Comfortably Numb (6) The Show Must Go On (7) Comfortably Numb is a song by the British progressive rock band Pink Floyd, which was released on the 1979 double album The Wall. ...

Madonna used a 2-ton disco ball that was embellished by 2 million dollars worth of Swarovski crystals for her Confessions Tour in 2006. ^[3] Madonna Louise Ciccone Ritchie (born August 16, 1958), better known as simply Madonna, is a six-time Grammy[1] and one-time Golden Globe award winning American pop singer, songwriter, record and film producer, dancer, actress, author and fashion icon. ... Swarovski is the luxury brand name for the range of precision-cut crystal glass products produced by companies owned by Swarovski AG of Feldmeilen, near Zürich, Switzerland. ... For the live album of the tour, see The Confessions Tour (album). ...

Disco balls in architectural design

The observation deck of the Fernsehturm Berlin resembles a disco ball. ^{[citation needed]} The Berliner Fernsehturm seen from a distance. ...

References

1. ^ ABC Glasgow The Building
2. ^ Lighting Dimensions, Sept. 1994, retrieved here 6 July 2006
3. ^ [1]Madonna.com