Comet

A comet is an icy small Solar System body that, when passing close to the Sun, heats up and begins to outgas, displaying a visible atmosphere or coma, and sometimes also a tail. These phenomena are due to the effects of solar radiation and the solar wind upon the nucleus of the comet. Comet nuclei range from a few hundred metres to tens of kilometres across and are composed of loose collections of ice, dust, and small rocky particles. The coma and tail are much larger and, if sufficiently bright, may be seen from the Earth without the aid of a telescope. Comets have been observed and recorded since ancient times by many cultures.

Comets usually have highly eccentric elliptical orbits, and they have a wide range of orbital periods, ranging from several years to potentially several millions of years. Short-period comets originate in the Kuiper belt or its associated scattered disc, which lie beyond the orbit of Neptune. Long-period comets are thought to originate in the Oort cloud, a spherical cloud of icy bodies extending from outside the Kuiper belt to halfway to the next nearest star. Long-period comets are directed towards the Sun from the Oort cloud by gravitational perturbations caused by passing stars and the galactic tide. Hyperbolic comets may pass once through the inner Solar System before being flung out to interstellar space.

Comet (disambiguation)

A comet is a small astronomical body which orbits the sun.

Comet may also refer to:

Arts and entertainment

In print

  • Comet (Archie Comics), a fictional superhero in the comic-book series Pep Boys
  • Comet (DC Comics), two fictional comic-book characters associated with the Superman family of titles
  • Captain Comet, a different DC Comics superhero
  • Comet (Impact Comics), a fictional superhero in the comic-book series Impact Comics
  • Comet (Marvel Comics), a Marvel Comics character
  • Comet (magazine), a US pulp science fiction magazine
  • The Comet (UK comics), a British comic
  • The Comet (newspaper), a British newspaper based in Stevenage, Hertfordshire
  • The Comet, the first science fiction fanzine
  • Comet, a fictional magical object in the Harry Potter series
  • "The Comet" (short story), by W.E.B. DuBois
  • Comet (book), by Carl Sagan and Ann Druyan
  • Music

  • Comet (band), an American band
  • Comet (The Bouncing Souls album) (2012)
  • Comet (Younha album)
  • "Comet" (song), an American children's song
  • Roller coasters

    Comet (pinball)

    Comet is a pinball machine released by Williams in June 1985. It was designed by Barry Oursler.

    Rules

    In this pinball game, the player attempts to navigate throughout a representation of a Carnival, with the namesake Comet being a central ramp representing a roller coaster, normally worth 10,000 points. Two banks of Shooting Gallery targets (Rabbits and Ducks) can be targeted to score points and advance the matching bonus counter. Each bonus track is worth a maximum of 63,000 points. Hitting all four targets in a target bank lights an additional objective, which allows you to collect the matching bonus during play by completing the Whirlwind ramp (for Ducks) or the Funhouse saucer (for Rabbits). Completing both target banks lights additional points for the center ramp (30,000, 50,000, 100,000, and one more 100,000 per sequential shot), including the chance for extra balls and replays depending on specific game settings. Completing the ramp advances both bonuses.

    The most definitive feature of Comet is a Motorcycle Jump ramp on the upper-right side of the playfield. This features a Skee ball-like scoring setup, where the closest target is worth 20,000, the middle target is worth 50,000, and the farthest target is worth 200,000. Completing the ramp advances both bonuses. The ramp starts each ball in a lit state, then becomes unlit after being scored.

    Boom

    Boom may refer to:

    Objects

  • Boom (containment), a temporary floating barrier used to contain an oil spill
  • Boom (navigational barrier), an obstacle strung across a navigable stretch of water to control or block navigation
  • Boom (sailing), spar at the foot of a sail on a sailboat
  • Boom (ship), a type of Arab sailing vessel
  • Boom (windsurfing), a wishbone shaped piece of windsurfing equipment
  • Log boom, a barrier placed in a river
  • Boom, the lifting part of a crane (machine)
  • Boom, the rear fuselage of an aircraft, as in twin boom
  • Other common meanings

  • Economic boom, time of rapid growth in wealth, as in a boom town
  • Latin American Boom, a literary movement in 1960s Latin America
  • Sonic boom, the sound created by an object traveling through the air faster than the speed of sound
  • Explosion, the sound that an explosion makes is a boom
  • Arts and entertainment

    Music

    Performers

  • Boom! (band), a pop band founded by Hear'Say member Johnny Shentall
  • The Boom, a Japanese rock band
  • Boom Gaspar (born 1953), piano/keyboard/organ player for the band Pearl Jam
  • Boom! (TV series)

    Boom! is an American reality television series that aired on Spike TV in 2005 and was hosted by Kourtney Klein. It featured a group of demolition experts using explosives to destroy objects such as trailers, houses, boats and cars. Often, the suggestions on what should be blown up were sent in by home viewers via a "BOOM! Mailbag". Each episode covered obtaining the materials (such as the item to be destroyed), cleaning, gutting, and rigging the thing with explosives, and then making the final countdown and pushing the detonator, and watching the devastation.

    References

    External links

  • Boom! at the Internet Movie Database
  • Boom! (film)

    Boom! is a 1968 British drama film starring Elizabeth Taylor, Richard Burton and Noël Coward, directed by Joseph Losey, and adapted from the play The Milk Train Doesn't Stop Here Anymore by Tennessee Williams.

    Plot

    Flora 'Sissy' Goforth (Taylor, in a part written for an older woman) is a terminally ill woman living with a coterie of servants in a large mansion on a secluded island. Into her life comes a mysterious man, Christopher Flanders, nicknamed "Angelo Del Morte" (played by then-husband Burton, in a part intended for a very young man). The mysterious man may or may not be "The Angel of Death".

    The interaction between Goforth and Flanders forms the backbone of the plot, with both of the major characters voicing lines of dialogue that carry allegorical and Symbolist significance. Secondary characters chime in, such as "the Witch of Capri" (Coward). The movie mingles respect and contempt for human beings who, like Goforth, continue to deny their own death even as it draws closer and closer. It examines how these characters can enlist and redirect their fading erotic drive into the reinforcement of this denial.

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