Barnacle
A barnacle is a type of arthropod constituting the infraclass Cirripedia in the subphylum Crustacea, and is hence related to crabs and lobsters. Barnacles are exclusively marine, and tend to live in shallow and tidal waters, typically in erosive settings. They are sessile (nonmotile) suspension feeders, and have two nektonic (active swimming) larval stages. Around 1,220 barnacle species are currently known. The name "Cirripedia" is Latin, meaning "curl-footed".
Description
Barnacles are encrusters, attaching themselves permanently to a hard substrate. The most common, "acorn barnacles" (Sessilia), are sessile, growing their shells directly onto the substrate. The order Pedunculata ("goose barnacles" and others) attach themselves by means of a stalk.
Free-living barnacles are attached to the substratum by cement glands that form the base of the first pair of antennae; in effect, the animal is fixed upside down by means of its forehead. In some barnacles, the cement glands are fixed to a long, muscular stalk, but in most they are part of a flat membrane or calcified plate. A ring of plates surrounds the body, homologous with the carapace of other crustaceans. These consist of the rostrum, two lateral plates, two carinolaterals, and a carina. In sessile barnacles, the apex of the ring of plates is covered by an operculum, which may be recessed into the carapace. The plates are held together by various means, depending on species, in some cases being solidly fused.
Barnacle (disambiguation)
A barnacle is an arthropod belonging to the infraclass Cirripedia in the subphylum Crustacea.
Barnacle may also refer to:
See also
Barnacle (slang)
The word barnacle is a slang term used in electrical engineering to indicate a change made to a product on the manufacturing floor that was not part of the original product design. A barnacle is typically used to correct a defect in the product or as a way of enhancing the product with new functionality. A barnacle is normally a quick fix that is used until the product design can be redone incorporating the barnacle into the actual product so that when manufactured, the barnacle step in manufacturing is no longer required. A barnacle may also be added in the field in order to correct a design or manufacturing defect.
Origin
The term appears to have originated from the mollusc barnacle which is an animal that attaches itself to rocks, docks, ships, whales, and other objects where it grows. A barnacle in electronics is something added to the manufactured product. Typically a barnacle on a circuit board is very noticeable, much like the mollusc variety on a rock in the sea.
Maniac
Maniac (from Greek μανιακός, maniakos) is a pejorative for an individual who experiences the mood known as mania. Also in common usage it is an insult for someone involved in reckless behavior.
Maniac may also refer to:
Film
Medicine
Games
Music
Maniac (producer)
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Maniac (born Brandon Jolie in Bow, East London) is an English grime producer. Maniac served 6 years of a 14 year sentence after being convicted of conspiracy to murder in 2009 before being given a conditional early release in 2015. In music, Maniac is a highly rated producer who has worked with artists such as Wiley, Tinchy Stryder and Chipmunk.
Style
Maniac has been praised for his original, distinctive sound and the variety of sounds he explores in his music. Maniac is considered to be among the most talented producers to have produced Grime music.
Career
2006-2009: Active Work
Maniac first came to prominence at the age of 16 when his track Bow E3 was used by Wiley for his album Playtime Is Over. In 2008 Maniac released a collaborative album with Tinchy Stryder entitled Tinchy Stryder vs. Maniac. This was followed by his first solo CD New Age Grime in 2009. Maniac contributed a number of tracks to the 2008 film Adulthood, recorded a single for a Nike advertising campaign and had his music featured on British soap EastEnders.
Sven Erik Kristiansen
Sven Erik Kristiansen (born 4 February 1969) is a Norwegian musician. He is best known as the former vocalist in the black metal band Mayhem under the stage name Maniac.
Personal life
Kristiansen has three children, two daughters whom the youngest one is with his wife, japanese musician Eri Isaka aka Vivian Slaughter from Gallhammer, and a son with his ex-girlfriend, Hilma. He has said that since he became a father, he has become more conscious of what he exposes himself to and less destructive.
For several years, Kristiansen was a self-admitted alcoholic. His turning point, he says, was one day when he found himself hanging by one arm out of a fourth floor window, with no idea how he got there. He is married to Vivian Slaughter, bassist and vocalist for the Japanese band Gallhammer.
With Mayhem
He joined Mayhem in 1986 after the departure of the band's original vocalist Messiah. He was in the band until 1988, when he was replaced by Kittil. When Hellhammer decided to revive Mayhem in 1995 after the deaths of both Euronymous and Dead and the imprisonment of Count Grishnakh, he invited Maniac to return as the band's vocalist.
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