Lechuguilla Cave, New Mexico

A cave or cavern is a natural underground space large enough for a human to enter. The term applies to natural cavities some part of which is in total darkness. The word cave also refers to smaller spaces like rock shelters, sea caves, and grottos.

Speleology is the science of exploration and study of all aspects of caves and the environment which surrounds the caves. Exploring a cave for recreation or science may be called caving, potholing, or, in Canada and the United States, spelunking (see caving).

Types and formation[link]

The formation and development of caves is known as speleogenesis. Caves are formed by various geologic processes. These may involve a combination of chemical processes, erosion from water, tectonic forces, microorganisms, pressure, atmospheric influences, and even digging.

Most caves are formed in limestone by dissolution.

Speleothems in Hall of the Mountain King, Ogof Craig a Ffynnon, South Wales.

Solutional cave[link]

Solutional caves are the most frequently occurring caves and such caves form in rock that is soluble, such as limestone, but can also form in other rocks, including chalk, dolomite, marble, salt, and gypsum. Rock is dissolved by natural acid in groundwater that seeps through bedding-planes, faults, joints and so on. Over geological epochs cracks expand to become caves or cave systems.

The largest and most abundant solutional caves are located in limestone. Limestone dissolves under the action of rainwater and groundwater charged with H₂CO₃ (carbonic acid) and naturally occurring organic acids. The dissolution process produces a distinctive landform known as karst, characterized by sinkholes, and underground drainage. Limestone caves are often adorned with calcium carbonate formations produced through slow precipitation. These include flowstones, stalactites, stalagmites, helictites, soda straws and columns. These secondary mineral deposits in caves are called speleothems.

The portions of a solutional cave that are below the water table or the local level of the groundwater will be flooded.^[1]

The world's most spectacularly decorated cave is generally regarded to be Lechuguilla Cave in New Mexico. Lechuguilla and nearby Carlsbad Cavern are now believed to be examples of another type of solutional cave. They were formed by H₂S (hydrogen sulfide) gas rising from below, where reservoirs of oil give off sulfurous fumes. This gas mixes with ground water and forms H₂SO₄ (sulfuric acid). The acid then dissolves the limestone from below, rather than from above, by acidic water percolating from the surface.

Primary cave[link]

Exploring a lava tube in Hawaii.

Some caves are formed at the same time as the surrounding rock. These are sometimes called primary caves.

Lava tubes are formed through volcanic activity and are the most common 'primary' caves. The lava flows downhill and the surface cools and solidifies. The hotter lava continues to flow under that crust, and if most of the liquid lava beneath the crust flows out, a hollow tube remains, thus forming a cavity. Examples of such caves can be found on the Canary Islands, Hawaii, and many other places. Kazumura Cave near Hilo is a remarkably long and deep lava tube; it is 65.6 km long (40.8 mi).

Lava caves include but are not limited to lava tubes. Other caves formed through volcanic activity include rift caves, lava mold caves, open vertical volcanic conduits, and inflationary caves.

Sea cave or littoral cave[link]

Sea caves are found along coasts around the world. A special case is littoral caves, which are formed by wave action in zones of weakness in sea cliffs. Often these weaknesses are faults, but they may also be dykes or bedding-plane contacts. Some wave-cut caves are now above sea level because of later uplift. Elsewhere, in places such as Thailand's Phang Nga Bay, solutional caves have been flooded by the sea and are now subject to littoral erosion. Sea caves are generally around 5 to 50 metres (16 to 160 ft) in length but may exceed 300 metres (980 ft).

Corrasional cave or erosional cave[link]

Corrasional or erosional caves are those that form entirely by erosion by flowing streams carrying rocks and other sediments. These can form in any type of rock, including hard rocks such as granite. Generally there must be some zone of weakness to guide the water, such as a fault or joint. A subtype of the erosional cave is the wind or aeolian cave, carved by wind-born sediments. Many caves formed initially by solutional processes often undergo a subsequent phase of erosional or vadose enlargement where active streams or rivers pass through them.

Glacier cave[link]

Glacier cave in Big Four Glacier, Big Four Mountain, Washington, ca. 1920

Glacier caves occur in ice and under glaciers and are formed by melting. They are also influenced by the very slow flow of the ice, which tends to close the caves again. (These are sometimes called ice caves, though this term is properly reserved for caves that contain year-round ice formations).

Fracture cave[link]

Fracture caves are formed when layers of more soluble minerals, such as gypsum, dissolve out from between layers of less soluble rock. These rocks fracture and collapse in blocks of stone.

Talus cave[link]

Talus caves are the openings between rocks that have fallen down into a pile, often at the bases of cliffs (called "talus").

Anchialine cave[link]

Anchialine caves are caves, usually coastal, containing a mixture of freshwater and saline water (usually sea water). They occur in many parts of the world, and often contain highly specialized and endemic fauna.

Physical patterns[link]

• Branchwork caves resemble surface dentritic stream patterns; they are made up of passages that join downstream as tributaries. Branchwork caves are the most common of cave patterns and are formed near sinkholes where groundwater recharge occurs. Each passage or branch is fed by a separate recharge source and converges into other higher order branches downstream.^[2]
• Angular Network caves form from intersecting fissures of carbonate rock that have had fractures widened by chemical erosion. These fractures form high, narrow, straight passages that persist in widespread closed loops.^[2]
• Anastomotic caves largely resemble surface braided streams with their passages separating and then meeting further down drainage. They usually form along one bed or structure, and only rarely cross into upper or lower beds.^[2]
• Spongework caves are formed as solution cavities are joined by mixing of chemically diverse water. The cavities form a pattern that is three-dimensional and random, resembling a sponge.^[2]
• Ramiform caves form as irregular large rooms, galleries, and passages. These randomized three-dimensional rooms form from a rising water table that erodes the carbonate rock with hydrogen-sulfide enriched water.^[2]
• Pit caves (vertical caves, potholes, or simply "pits") consist of a vertical shaft rather than a horizontal cave passage. They may or may not be associated with one of the above structural patterns.

Geographic distribution[link]

Caves are found throughout the world, but only a portion of them have been explored and documented by cavers. The distribution of documented cave systems is widely skewed toward countries where caving has been popular for many years (such as France, Italy, Australia, the UK, the United States, and so on.). As a result, explored caves are found widely in Europe, Asia, North America, and Oceania but are sparse in South America, Africa, and Antarctica. This is a great generalization, as large expanses of North America and Asia contain no documented caves, whereas areas such as the Madagascar dry deciduous forests and parts of Brazil contain many documented caves. As the world’s expanses of soluble bedrock are researched by cavers, the distribution of documented caves is likely to shift. For example, China, despite containing around half the world's exposed limestone - more than 1,000,000 square kilometres (390,000 sq mi) - has relatively few documented caves.

Records and superlatives[link]

• The cave system with the greatest total length of surveyed passage is Mammoth Cave (Kentucky, USA) at 628 kilometres (390 mi) in length. This record is unlikely to be surpassed in the near future, as the next most extensive known cave is Jewel Cave near Custer, South Dakota, at 242 kilometres (150 mi).^[3]

• The longest surveyed underwater cave is Sistema Sac Actun in Yucatán, Mexico at 215 km (134 mi).^[3] The record has been exchanged several times with Sistema Ox Bel Ha, currently at 182 kilometres (113 mi).

• The deepest known cave (measured from its highest entrance to its lowest point) is Voronya Cave (Abkhazia), with a depth of 2,191 metres (7,188 ft).^[4] This was the first cave to be explored to a depth of more than 2 kilometres (1.2 mi). (The first cave to be descended below 1 kilometre (0.62 mi) was the famous Gouffre Berger in France.) The Illyuzia-Mezhonnogo-Snezhnaya cave in Abkhazia, (1,753 metres or 5,751 feet) and the Lamprechtsofen Vogelschacht Weg Schacht in Austria (1,632 metres or 5,354 feet) are the current second- and third-deepest caves, respectively. The deepest cave record has changed several times in recent years.

• The deepest vertical shaft in a cave is 603 metres (1,978 ft) in Vrtoglavica Cave in Slovenia. The second deepest is Patkov Gušt at 553 metres (1,814 ft) in the Velebit mountain, Croatia.

• The largest room ever discovered is the Sarawak Chamber, in the Gunung Mulu National Park (Miri, Sarawak, Borneo, Malaysia), a sloping, boulder strewn chamber with an area of approximately 700 by 400 metres (2,297 by 1,312 ft) and a height of 80 metres (260 ft). The nearby Clearwater Cave System is believed to be the world's largest cave by volume, with a calculated volume of 30,347,540 m³.

• The largest passage ever discovered is in the Son Doong Cave in Phong Nha-Ke Bang National Park in Quang Binh Province, Vietnam. Explored by joint Vietnamese-British cave scientists of the British Cave Research Association, it is 4.6 km (2.9 mi) in length, 80 m (260 ft) high and wide over most of its length, but over 140 m (460 ft) high and wide for part of its length.^[5]

World's five longest surveyed caves[link]

1. Mammoth Cave, Kentucky, USA^[3]
2. Jewel Cave, South Dakota, USA^[3]
3. Optymistychna Cave, Ukraine^[3]
4. Wind Cave, South Dakota, USA^[3]
5. Sistema Sac Actun, Mexico^[3]

Ecology[link]

Cave-inhabiting animals are often categorized as troglobites (cave-limited species), troglophiles (species that can live their entire lives in caves, but also occur in other environments), trogloxenes (species that use caves, but cannot complete their life cycle fully in caves) and accidentals (animals not in one of the previous categories). Some authors use separate terminology for aquatic forms (for example, stygobites, stygophiles, and stygoxenes).

Of these animals, the troglobites are perhaps the most unusual organisms. Troglobitic species often show a number of characteristics, termed troglomorphic, associated with their adaptation to subterranean life. These characteristics may include a loss of pigment (often resulting in a pale or white coloration), a loss of eyes (or at least of optical functionality), an elongation of appendages, and an enhancement of other senses (such as the ability to sense vibrations in water). Aquatic troglobites (or stygobites), such as the endangered Alabama cave shrimp, live in bodies of water found in caves and get nutrients from detritus washed into their caves and from the feces of bats and other cave inhabitants. Other aquatic troglobites include cave fish, the Olm, and cave salamanders such as the Texas Blind Salamander.

Cave insects such as Oligaphorura (formerly Archaphorura) schoetti are troglophiles, reaching 1.7 millimetres (0.067 in) in length. They have extensive distribution and have been studied fairly widely. Most specimens are female but a male specimen was collected from St Cuthberts Swallet in 1969.

Bats, such as the Gray bat and Mexican Free-tailed Bat, are trogloxenes and are often found in caves; they forage outside of the caves. Some species of cave crickets are classified as trogloxenes, because they roost in caves by day and forage above ground at night.

Because of the fragile nature of the cave ecosystem, and the fact that cave regions tend to be isolated from one another, caves harbor a number of endangered species, such as the Tooth cave spider, Liphistiidae Liphistius trapdoor spider, and the Gray bat.

Caves are visited by many surface-living animals, including humans. These are usually relatively short-lived incursions, due to the lack of light and sustenance.

Cave entrances often have typical florae. For instance, in the eastern temperate United States, cave entrances are most frequently (and often densely) populated by the bulblet fern, Cystopteris bulbifera.

Archaeological and cultural importance[link]

Throughout history, primitive peoples have made use of caves for shelter, burial, or as religious sites. Since items placed in caves are protected from the climate and scavenging animals, this means caves are an archaeological treasure house for learning about these people. Cave paintings are of particular interest. One example is the Great Cave of Niah, in Malaysia, which contains evidence of human habitation dating back 40,000 years.^[6] Another, the Diepkloof Rock Shelter in South Africa contains evidence of human habitation and use of symbols dating back 60,000 years.^[7]

Gallery[link]

• 

  Canyon passage in Mammoth Cave, the world's longest cave.

• Townsends in music hall.jpg

  Townsend's big-eared bats in a cave

• 

  Middle Age Livestock Shelter or Paridera in a Natural Cave in Piedra River, Aragon, Spain

• 

  Subterranean isle in Križna jama, Slovenia.

• 

  Karst cave with underground river exiting at Tolantongo, Mexico.

• Hastings Caves Tasmania.jpg

  Hastings caves, Tasmania, Australia.

See also[link]

• Cave Conservancies
• Cave Research Foundation
• Cenote
• Flowstone
• List of caves
• National Speleological Society
• Pit cave
• Speleology
• Speleothem
• Subterranean lake
• Subterranean river

References[link]

External links[link]

Wikimedia Commons has media related to: Caves

• Norwegian Cave Federation NO
• Australian Speleological Federation (ASF), AU
• British Caving Association (BCA), UK
• The Mulu Caves Project, A British-Malaysian collaboration to explore the caves of the Gunung Mulu National Park, Sarawak
• Classification of Caves A list of cave types with links to further information
• Journal of Cave and Karst Studies
• National Speleological Society (NSS), US
• International Union of Speleology (UIS).
• cave-biology.org Cave biology (biospeleology) in India.
• Biospeleology; The Biology of Caves, Karst, and Groundwater, by Texas Natural Science Center, The University of Texas at Austin and the Missouri Department of Conservation.
• French Caves List of Commercial Caves in France.
• Caves of Croatia List and details about longest and deepest caves and pits in Croatia.

Cave Johnson
12th United States Postmaster General[1]
In office March 6, 1845[1] – March 4, 1849
Preceded by	Charles A. Wickliffe
Succeeded by	Jacob Collamer
Personal details
Born	(1793-01-11)January 11, 1793[1] Robertson County, Tennessee, U.S.
Died	November 23, 1866(1866-11-23) (aged 73)[1] Clarksville, Tennessee, U.S.
Political party	Democratic[1]
Spouse(s)	Elizabeth Dortch Brunson
Alma mater	Cumberland College[1]
Profession	Politician[1]

Cave Johnson (January 11, 1793 – November 23, 1866) was for fourteen years a Democratic U.S. Congressman from Tennessee. He was also the United States Postmaster General under James K. Polk from 1845–1849. He was born in Robertson County, Tennessee, and died in Clarksville, Tennessee.

During his tenure at Postmaster General he shifted the postal service from a collect on delivery postage delivery system to a prepaid postal delivery system by introducing the postage stamp in 1847. He is also credited with introducing street corner mail boxes in urban areas. He later served as president of the Bank of Tennessee from 1854 to 1860.

References[link]

External links[link]

• Cave Johnson at the Biographical Directory of the United States Congress
• Cave Johnson at Find A Grave

v t e United States Postmasters General Confederal Franklin Bache Hazard Federal Osgood Pickering Habersham G. Granger Meigs McLean Cabinet level Barry Kendall Niles F. Granger Wickliffe Johnson Collamer Hall Hubbard Campbell A. Brown Holt King Blair Dennison Randall Creswell Marshall Jewell Tyner Key Maynard James Howe Gresham Hatton Vilas Dickinson Wanamaker Bissell Wilson Gary Smith Payne Wynne Cortelyou Meyer Hitchcock Burleson Hays Work New W. Brown Farley Walker Hannegan Donaldson Summerfield Day Gronouski O'Brien Watson Blount U.S. Postal Service Blount Klassen Bailar Bolger Carlin Casey Tisch Frank Runyon Henderson Potter Donahoe

v t e Cabinet of President James K. Polk (1845–1849) Vice President George M. Dallas (1845–1849) Secretary of State James Buchanan (1845–1849) Secretary of the Treasury Robert J. Walker (1845–1849) Secretary of War William L. Marcy (1845–1849) Attorney General John Y. Mason (1845–1846) Nathan Clifford (1846–1848) Isaac Toucey (1848–1849) Postmaster General Cave Johnson (1845–1849) Secretary of the Navy George Bancroft (1845–1846) John Y. Mason (1846–1849)

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Adam Savage
Savage in July 2011
Born	Adam Whitney Savage[1] (1967-07-15) July 15, 1967 (age 44) New York City, U.S.
Nationality	American
Education	Tisch School of the Arts
Occupation	MythBusters co-host, designer/fabricator, actor, educator
Height	6'0"
Religion	None (Atheist)
Spouse	Julia Savage (2002-present)
Children	Two
Website
adamsavage.com

Adam Whitney Savage (born July 15, 1967)^[2] is an American industrial design and special effects designer/fabricator, actor, educator, and co-host of the Discovery Channel television series MythBusters.^[1] His model work has appeared in major films, including Star Wars: Episode II - Attack of the Clones and The Matrix Reloaded. He is a prominent member of the skeptic community. He lives in San Francisco with his twin sons and wife, Julia.

Early life and education[link]

Born in New York City, Savage was raised in Sleepy Hollow in Westchester County New York.^[3] He graduated from Sleepy Hollow High School in 1985.^[4] His father, Whitney Lee Savage (1928-1998), was a painter, filmmaker and animator known for his work on Sesame Street, and has a permanent exhibit in the Avampato Discovery Museum.^[5] His mother is a psychotherapist. His sister Kate Savage is also an artist. As a teenager in Sleepy Hollow, he routinely visited the local bike shop to have flat tires fixed. The shop showed him how to do the repairs himself. From this experience, Savage said, "I realized you could take a bike apart and put it back together and it wasn't that hard...I've been building and putting bicycles together since then."^[4]

Adam Savage began acting as a child, and has had five years of acting school.^[1] His early credits include voicing animated characters that his father produced for Sesame Street, Mr. Whipple's stock boy "Jimmy" in a Charmin commercial, a helper in the special effects of Star Wars, and a drowning young man saved by a lifeguard in the 1985 Billy Joel music video "You're Only Human (Second Wind)."^[6] He attended New York University's Tisch School of the Arts for acting for six months before dropping out.^[7]

Describing the early abandonment of his acting career, Savage said "...by the time I was, I guess probably nineteen, I had passed on that in favor of doing stuff with my hands – graphic design, assistant animation in New York, and then eventually working in theater in San Francisco, and film special effects. Then MythBusters came along and it was the perfect marriage of two things, performance and special effects."^[8] On November 25, 2011, Savage received an honorary doctorate from the University of Twente (Enschede, Netherlands) for his role in the popularization of science and technology.^[9][10]

Career[link]

Savage in July 2008

Savage has worked as an animator, graphic designer, carpenter, projectionist, film developer, television presenter, set designer, toy designer, and gallery owner. He worked as a model maker on the films Galaxy Quest, Bicentennial Man, Star Wars: Episode II - Attack of the Clones, The Matrix Reloaded, and Space Cowboys, among others.

Savage played the role of a helpful engineer in the 2001 film Ever Since the World Ended^[11] and the role of an army surplus store owner who sells a man a rocket engine for his pickup truck in 2006 in The Darwin Awards, which also featured MythBusters co-star Jamie Hyneman.^[12] He made a cameo appearance along with Jamie Hyneman on CSI: Crime Scene Investigation on the May 1, 2008, episode "The Theory of Everything." In the "making of" material for The Matrix Revolutions, he appears in his role as a special effects artist and discusses some of the miniature effects used and the difficulties involved.

He previously taught advanced model making in the department of Industrial Design at the Academy of Art University in San Francisco.^[1]

Savage has become a regular presenter at magician James Randi's annual skeptics' conference, The Amaz!ng Meeting, since first appearing in January 2006.^[13] He also appeared in the UK, giving a talk at the first Amazing Meeting London from October 3–4, 2009, hosted at the Mermaid Conference Centre, Blackfriars.^[14]

Savage was a featured performer at the three w00tstock v1.x shows in 2009, and appeared in four w00tstock v2.x shows in 2010. He also appeared as a guest on Diggnation's 220th show.^[15]

Savage has also been a regular guest speaker at the annual Maker Faire since 2008, speaking on different topics such as his obsession with the dodo bird and problem solving, and also taking questions from the audience members about the Mythbusters and other things.

Savage hosted an episode of the Discovery Channel series Curiosity, in which he speculated as to whether or not it is possible for humans to live forever. During the program various topics such as limb regeneration, organ printers, and even age reversal are discussed.

Savage and Hyneman are judges on the game show Unchained Reaction which premiered in March 2012.^[16]

[edit] MythBusters

Savage has been involved in MythBusters since its creation. His role in the show (that he shares with all the other talent) is to either disprove ("bust") myths or confirm them through testing and experiments done at different scales. If the myth is about a one-time occurrence and not about whether or not something can happen at all, it is often deemed "plausible" instead.

Savage's demeanour on MythBusters is animated and energetic, providing a foil to Jamie Hyneman's more reserved straight man persona.^[17]

Savage and Hyneman were the only hosts of the show for the first season of MythBusters, but starting with the second season, members of Hyneman's staff were introduced and began to appear regularly in episodes; Kari Byron, Tory Belleci and welder Scottie Chapman appeared in the second season. In the third season, Chapman was replaced by Grant Imahara, a robot builder and model maker. In an interview Savage gave during The Amaz!ng Meeting 5, he expressed an interest in proving natural selection over creationism on MythBusters.

Savage also stated that such an episode is unlikely because MythBusters has a policy against trying to disprove supernatural phenomena.^[19]

Personal life[link]

At Reason Rally Washington D.C. March 23, 2012

Savage and his wife Julia were married in 2002. He has twin sons from a previous relationship.^[20] He wears a hearing aid on his left ear due to a congenital condition.^[21] He is a practiced juggler, as seen on Mythbusters. He is also an atheist.^[22] He has a lifelong interest in costume making. He said, "I remember my mom getting me a 'Jaws' costume when 'Jaws' came out...and wearing a Batman costume. Back then, everyone dressed up as hobos." He strives for authenticity with his costumes. While in high school, he and his father made a suit of armor out of aluminum roof flashing that had 700 rivets. He said, "I wore it to school and passed out from heat exhaustion in math class. I woke up in the nurse's office and the first thing I said was 'Where's my armor'?" In 2011, he built a costume based on the character No-Face from the film Spirited Away.^[4] In early 2012, it was announced that he would be the commencement speaker at Sarah Lawrence College.^[23]

References[link]

External links[link]

Wikimedia Commons has media related to: Adam Savage

• Adam Savage's personal website
• Adam Savage at the Internet Movie Database
• Adam Savage on Twitter
• Adam Savage's biography from the Discovery Channel
• Interview with The Sneeze
• Interview with Reddit.com
• Adam Savage interviewed on Penn Radio
• Discovery
• Savage Presentation at The Entertainment Gathering (December 2008)
• Adam Savage on Diggnation (September 2009)
• Adam Savage interviewed on Geek a Week

This article is in a list format that may be better presented using prose. You can help by converting this article to prose, if appropriate. Editing help is available. (November 2011)

Owl City
Adam Young performing in 2009
Background information
Origin	Owatonna, Minnesota, United States
Genres	Electronica, synthpop
Years active	2007–present
Labels	Universal Republic
Associated acts	Sky Sailing, Lights, Breanne Düren
Website	owlcitymusic.com
Members
Adam Young

Owl City is an American electronica musical project by singer-songwriter and multi-instrumentalist Adam Young formed in 2007 in Owatonna, Minnesota. Young created the project while experimenting with music in his parents' basement. Owl City developed a following on the social networking site Myspace, like many musicians who achieved success in the late 2000s, before signing with Universal Republic in 2008.

After two independent releases, Owl City gained mainstream popularity with the 2009 major label debut album Ocean Eyes, which spawned the quadruple-platinum^[1] hit single "Fireflies". The album was certified Platinum in the United States in April 2010.^[1]

In 2011, Owl City released its third studio album, All Things Bright and Beautiful.

History[link]

Early years (2007–2009)[link]

Suffering from insomnia while working loading Coca-Cola trucks in his hometown Owatonna, Minnesota, Young turned to composing music.^[2][3][4] He began uploading songs recorded in his parents' basement to Myspace.^[4][5] He started to receive favorable attention for his music and then helped cultivate this nascent fanbase by being an open and accessible web presence, responding to any messages he received and constantly posting blogs.^[6] His manager Steve Burksy later highlighted the significance of Young's engaging online manner in building his following saying: "People feel like they know him, like they've got a direct connection to him because of how he approaches his connection with them online."^[6] Through a deal with the digital aggregator CD Baby, he then started making the songs available for sale through iTunes.^[6] In 2007, Owl City released an EP titled Of June, followed by the 2008 release of the album Maybe I'm Dreaming. Of June reached No. 15 on the Billboard Electronic Albums chart, and Maybe I'm Dreaming peaked on the same chart at No. 13.^[7]

The viral phenomenon that was building through Myspace caught the attention of Universal Republic presidents Avery and Monte Lipman who approached Young with a view to signing the artist.^[6] Republic recommended Young partner up with 27-year-old manager Steve Bursky of Foundations Artist Management and the two began working together in late 2008. When later asked by HitQuarters why the label chose him for a major label act given his relative inexperience, Burksy said:

"I think they saw Owl City as representing the future of our business. This idea of a kid in a tiny town in rural U.S. being able to make songs in his basement that sound like Top 40 radio could never have happened ten years ago. By hiring a young management company who understands the business circa 2011 over a seasoned industry vet, who might not understand the online spaces well, showed a lot of understanding of where this kid was going to end up having success."^[6]

Owl City's label deal with Universal Republic was finally confirmed in February 2009.^[8] According to Bursky there was initially some disagreement about the direction Owl City should follow, telling HitQuarters: "They were ready to send him into the studio with big producers and polish him up to try to become this thing that he wasn't. But we put our foot down and said, 'Look, the reason you signed this kid is because it’s working. Whatever it is about him - his music, his interaction with his fans, his brilliance in the online space - these things are connecting with people, and as soon as you change that you lose what’s special about this artist.' To their credit, they really listened and they got it."^[6]

[edit] Ocean Eyes (2009–2010)

Ocean Eyes, Owl City's third full-length album and major label debut, was released on iTunes on July 14, 2009, with the physical release following on July 28, 2009. The album debuted at No. 27 on the Billboard 200. Owl City has released three official singles from this album: "Umbrella Beach", "Vanilla Twilight" and "Fireflies".^[9] "Fireflies" topped the US and Canadian charts. Ocean Eyes reached the top ten on the US album charts, topped the US electronic charts, and also reached Amazon MP3's top 10 most downloaded album list. By April 2010, it was certified Platinum in the United States. On January 24, 2010, Owl City reached the No. 1 spot in the UK Top 40 Singles chart with "Fireflies". The song "Tidal Wave" also received significant airplay on Christian music radio stations.^{[citation needed]} On January 2, 2011, it was revealed "Fireflies" was the 20th most downloaded song of all time in the UK.^[10]

Young is joined by Breanne Düren on several tracks; the most notable example of which is "The Saltwater Room". Owl City's live band consists of Breanne Düren (background vocals/keyboards), Casey Brown (drums), Laura Musten (violin), Hannah Schroeder (cello), and Daniel Jorgensen (vibes).^[11]

Relient K vocalist Matt Thiessen has toured and collaborated with Owl City on several tracks, including "Fireflies", where Matt can be heard providing the backup vocals. Young also produced Relient K's song "Terminals".

	"Fireflies" (2009) noicon Sample of the song "Fireflies" from Owl City's third album Ocean Eyes.
Problems listening to this file? See media help.

	"Umbrella Beach" (2010) noicon Sample of the song "Umbrella Beach" from Owl City's third album Ocean Eyes.
Problems listening to this file? See media help.

"Fireflies" was released as a free download on the game Tap Tap Revenge 3 by Tapulous. Prior to the July 14, 2009 internet release of Ocean Eyes, and the "Fireflies" single, Steve Hoover was hired as a director for a music video for "Fireflies". The video was to have had an exclusive premiere on MySpace,^[12] but had been leaked onto YouTube and Dailymotion hours earlier. "Fireflies" became a big sleeper hit, topping the Billboard Hot 100 in the United States for the week ending November 7, 2009.^[13]

Owl City is featured on Soundtrack 90210 with a song titled "Sunburn", which was released on October 13, 2009.^[14] Owl City has toured with The Scene Aesthetic, Lights, John Mayer, Maroon 5 and Brooke Waggoner. He was also guest featured in the soundtrack to Tim Burton's Alice in Wonderland with a song entitled "The Technicolor Phase" that had already been featured in his debut album.^[15]

In 2010, Young revealed a new musical project known as Sky Sailing, which moved away from his usual electronica genre of music and introduced acoustic guitar and piano accompaniments into his work. The unrefined tracks were recorded in the summer of 2007 before he began making music as Owl City.^[16] His first album under this new project is entitled An Airplane Carried Me to Bed, and was released July 13, 2010 via iTunes.^[17]

In May 2010, Adam Young collaborated with high-profile British electronic composer, producer, musician, and songwriter Nick Bracegirdle. Under his Chicane alias, Bracegirdle released the single "Middledistancerunner" on August 1, 2010 featuring Adam Young on vocals. This is the first single from the fourth Chicane album Giants. He also worked with famed Dutch producer Armin van Buuren, appearing on a track called 'Youtopia' from the van Buuren album Mirage on September 10, 2010.

On September 21, 2010 "To the Sky" was officially released via iTunes on the soundtrack for Legend of the Guardians: The Owls of Ga'hoole.

On October 25, 2010, Young released a cover version of the praise and worship song "In Christ Alone" as a streaming MP3 on his website.^[18][19]

On November 13, 2010, a new album called Flight was released on iTunes for one of his other musical projects, Windsor Airlift.^[20]

On November 23, 2010, a new Christmas single called "Peppermint Winter" was released. A preview had been released the previous week on Facebook.

[edit] All Things Bright and Beautiful (2010–2011)

Production on Young's third studio album began around mid-2010, with Young being announced as the executive producer of the album.^[21][22]

On October 18, 2010 Young wrote an entry on his blog regarding his third studio album, saying that the album was nearing completion.^[23]

In February 2011, the title of the album was announced to be All Things Bright and Beautiful and that the album would be released on May 17. However, on April 6, Young released a statement on his website, along with lengthy previews of four of his songs (Dreams Don't Turn to Dust, Alligator Sky Featuring Shawn Chrystopher, Galaxies, and Deer in the Headlights), that the release date for All Things Bright and Beautiful would be pushed back to June 14.^[24]

	"Alligator Sky" (2011) noicon Sample of the song "Alligator Sky" from Owl City's fourth album All Things Bright and Beautiful, featuring Californian rapper Shawn Chrystopher.
Problems listening to this file? See media help.

On March 22, "Alligator Sky" was released as the lead single from the album on iTunes.

In late March and early April, tickets went on sale for The All Things Bright and Beautiful World Tour,^[25][26][27] and All Things Bright and Beautiful became available for preorder.^[28]

On April 19, "Galaxies" was released as the second single from the album.

Owl City performing at the 9:30 club in Washington D.C in November 2011.

On May 6, the music video for "Alligator Sky" was released. Young discussed the concept in a making-of video posted on Owl City's VEVO account, "The concept is basically about these two guys who are leaving Earth. Rather than it being this very dark post-apocalyptic vibe, it's very optimistic, and so it's like people are excited to leave earth."^[29]

On May 23, "Deer in the Headlights", the third single from the album, was released on iTunes.

On June 14, All Things Bright and Beautiful was released on iTunes. Although only a few days prior on May 20, almost all of the album leaked onto the internet.^[30]

On June 30, the music video for "Deer in the Headlights" was released. It features Young driving through the night in the DMC DeLorean featured in the Back to the Future trilogy and Canadian musician Lights makes a cameo appearance in the video.

On July 19, "Lonely Lullaby" was released as a single on iTunes, which was previously available only to Owl City Galaxy members.

Young was interviewed in the August issue of Cliché Magazine. He also appeared on the cover of the magazine and the issue also featured some of Young's very own artwork.

On July 21, at The Club Nokia concert in Los Angeles, Young announced that the concert was being filming for a Live DVD. The Live DVD was eventually released on iTunes in November 2011.^[31]

[edit] The Midsummer Station (2011–present)

In Young's final tour dates of 2011, he performed a new song entitled "I Hope You Think of Me".^[32]

On January 2, 2012, Young wrote an entry on his blog regarding his fourth studio album. Young said that he would be collaborating with more producers and songwriters, saying that his new record "Marks a flying leap in this direction". Young expects the album to be released around late Summer to Fall 2012.^[33] In an interview with Billboard, Young revealed that the new album is around 80-85% complete, and that Dr. Luke, JR Rotem, Norwegian production team Stargate, Brian Kennedy and Emily Wright are involved with the production of the album. He was also unsure whether or not "I Hope You Think of Me" would make the final tracklisting.^[31]

On March 5, 2012, Young, along with Jewel and Jay Sean, released a song in promotion of the Child Hunger Ends Here campaign by ConAgra Foods entitled "Here's Hope".^[34][35]

	"Shooting Star" (2012) noicon Sample of the song "Shooting Star" from Owl City's fifth album The Midsummer Station, showcasing his new musical 'style' on his most recent album.
Problems listening to this file? See media help.

On April 17 2012, "Dementia", a song by Young which was intended to be included on his upcoming album leaked onto the internet. The song features additional vocals by Mark Hoppus of Blink-182.^[36]

On May 3, 2012, Young announced via Twitter that a new EP entitled "Shooting Star" was to be released on May 15. The EP features four songs off his upcoming album. Young stated that he released the EP because he wanted to give his fans a clear taste of what his upcoming album would sound like.^[37]

On May 24, 2012, Young revealed on Twitter that his fourth studio album would be titled The Midsummer Station.^[38]

Musical styles and influences[link]

Owl City's music is described as indietronica and synthpop and is often described as belonging under the "electronic music" label.^[39] Young has stated that he is inspired by disco and European electronic music, as well as instrumental genres such as drone, ambient, and post-rock. He cites his biggest influences as Johnathon Ford of Unwed Sailor and Thomas Newman. Young also incorporates a large amount of his Christian faith into his music, since he is a vocal Christian.^[40][41][42] Young's faith is evident on the new album, "All Things Bright and Beautiful", especially in "Galaxies". Explaining why the faith-filled song was added to the mix, he said, "I feel like if I were ever to hide the fact that that’s what’s so important to me, it would be a crime, that I should probably be put in jail for that." ^[43]

Owl City also has been compared to The Postal Service, often critically, for his combination of fuzzy synths, ironic lyrics and use of female guest singers.^[44] Pitchfork.com goes far enough to say that "The surprise No. 1 single in the country, Owl City's 'Fireflies,' jacks the Postal Service in such a bald-faced, obvious manner that getting into specifics feels redundant at best and tacky at worst."^[45] In response to the suggestion that his work is derivative, Adam Young suggested in a 2009 interview with The New York Times that Ocean Eyes is perhaps the "next chapter" after American band The Postal Service: "The Postal Service released a record in 2003, and that was it. There was really nothing to compare it to until some one else came along and wrote the next chapter. Maybe that's this record. Maybe that's this band." ^[46]

Band members[link]

Current members

• Adam Young – lead vocals, programming, keyboards, piano, synthesizers, guitars, bass guitar, drums, percussion, vibraphone^[47]

Current touring members

While Young writes, composes, records, and produces all of Owl City's music, during live performances he is accompanied by a group of supporting musicians:^[47][11]

• Breanne Düren – keyboards, backing vocals
• Daniel Jorgensen – guitar, vibraphone
• Laura Musten – violin
• Hannah Schroeder – cello
• Casey Brown – drums

Concert tours[link]

Discography[link]

Extended Plays

• Of June (2007)
• Shooting Star (2012)

Studio albums

• Maybe I'm Dreaming (2008)
• Ocean Eyes (2009)
• All Things Bright and Beautiful (2011)
• The Midsummer Station (2012)

References[link]

External links[link]

Wikimedia Commons has media related to: Owl City

• Owl City Official Website

Wiz Khalifa
Wiz Khalifa in Brooklyn, New York in August 2009.
Background information
Birth name	Cameron Jibril Thomaz
Born	(1987-09-08) September 8, 1987 (age 24) Minot, North Dakota, United States
Genres	Hip hop
Occupations	Rapper, singer, songwriter, actor
Years active	2005–present
Labels	Rostrum, Taylor Gang, Warner Bros., Atlantic
Associated acts	Snoop Dogg, Rick Ross, Curren$y, Big Sean, Chevy Woods, Mac Miller, Juicy J, Tinie Tempah, Yelawolf, Maroon 5, Big K.R.I.T.
Website	wizkhalifa.com

Cameron Jibril Thomaz (born September 8, 1987), better known by the stage name Wiz Khalifa, is an American rapper. He released his debut album, Show and Prove, in 2006, and signed to Warner Bros. Records in 2007. His Eurodance-influenced single, "Say Yeah", received urban radio airplay, charting on the Rhythmic Top 40 and Hot Rap Tracks charts in 2008.^[1] Khalifa parted with Warner Bros. and released his second album, Deal or No Deal, in November 2009. He released the mixtape Kush and Orange Juice as a free download in April 2010; he then signed with Atlantic Records.^[2] He is also well known for his debut single for Atlantic, "Black and Yellow", which peaked at number 1 on the Billboard Hot 100. His debut album for the label, Rolling Papers, was released on March 29, 2011.^[3]

Early life[link]

Khalifa was born on September 8, 1987 to a mother and a father serving in the military.^[1][4] His parents divorced when Khalifa was about three years old. His parents' military service caused him to move regularly: Khalifa lived in Germany, the United Kingdom, and Japan before settling in Pittsburgh where he attended Taylor Allderdice High School.^[1][4]

His stage name is derived from khalifa, an Arabic word meaning "successor", and wisdom, which was shortened to Wiz when Khalifa was a young boy .^[5] Khalifa stated to spinner.com that the name also came from being called "young Wiz 'cause I was good at everything I did, and my granddad is Muslim, so he gave me that name; he felt like that's what I was doing with my music." He got his stage name tattooed on his 17th birthday.^[6][7] He includes Jimi Hendrix, Camp Lo, The Notorious B.I.G. and Bone Thugs-n-Harmony among his influences.^[8]

Career[link]

[edit] 2005–08: Early mixtapes and Show and Prove

Rostrum Records president Benjy Grinberg first heard about Wiz Khalifa in 2004 when the rapper's contribution to a mixtape of various new Pittsburgh artists attracted his interest.^[9] When Grinberg finally met the 16-year-old artist, he immediately decided he wanted to work with him, later telling HitQuarters: "Even though he wasn’t all the way developed you could just tell that he was a diamond in the rough, and that with some polishing, guidance and backing he could become something special."^[9] Khalifa signed to the label shortly after and began a seven year period of artist development.^[9]

Khalifa released his first mixtape, Prince of the City: Welcome to Pistolvania, in 2005. The mixtape paved the way for his first full length album entitled Show and Prove in 2006. Khalifa was declared an "artist to watch" that year in Rolling Stone magazine.^[10][11]

In 2007, Khalifa signed to Warner Bros. Records and released two mixtapes through Rostrum Records: Grow Season, hosted by DJ Green Lantern and released on July 4, 2007, and Prince of the City 2, released on November 20, 2007. His debut Warner Bros. single "Say Yeah" reached number 25 on the Billboard Rhythmic Top 40 music chart and number 20 on Billboard's Hot Rap Tracks. The song samples "Better Off Alone" by Alice Deejay. Khalifa's vocals from "Say Yeah" appear near the end of Pittsburgh mash up producer Girl Talk's 2008 album, Feed the Animals, over music from Underworld's "Born Slippy", Usher's "Love in This Club", and the Cure's "In Between Days".^[12] Khalifa appeared with The Game, David Banner and Play-n-Skillz at U92's Summer Jam at the USANA Amphitheatre in West Valley City, Utah on August 2, 2008.^[13] Khalifa released the mixtapes Star Power in September 2008, and Flight School in April 2009 on Rostrum Records.

Khalifa parted ways with Warner Bros. Records in July 2009 after numerous delays in releasing his planned debut album for the label, First Flight. Khalifa stated to the Pittsburgh Post-Gazette that, "I learned a lot during my time there and matured as an artist during the process. I'm happy to be moving on with all of my material and having the chance to be in control of my next moves".^[14] Khalifa appeared with Girl Talk, Modey Lemon, Donora, Grand Buffet, and Don Caballero at the Amphitheatre at Station Square in Pittsburgh on July 31, 2009, where he announced that his relationship with Warner Bros. was over.^[15]

Wiz Khalifa performing at Columbia University in New York City in April 2010.

[edit] 2009–10: Deal or No Deal

Continuing his association with Rostrum Records, Khalifa released the single "Teach U to Fly", and the mixtape How Fly, a collaboration with New Orleans rapper Curren$y, on August 9, 2009.^[14] Khalifa introduced a more melodic style on the mixtape, alternating between singing and rapping. He opened for Wu-Tang Clan member U-God at the 2009 CMJ Music Marathon in New York City.^[16] Khalifa released the mixtape Burn After Rolling on November 2, 2009, where he raps over familiar beats from other artists, including the songs "If I Were A Boy" and "Diva" by Beyoncé, "Walking on a Dream" by Empire of the Sun, "Luchini AKA This Is It" by Camp Lo, and "Best I Ever Had" by Drake.^[17] Khalifa released his second album, Deal or No Deal, on November 24, 2009.^[18]

Khalifa performed at Emo's in Austin, Texas in March 2010 as part of the 2010 South by Southwest Music Festival.^[19] He appeared on the cover of XXL magazine that same month, for the magazine's annual list of Top 10 Freshman, which included Donnis, J. Cole, Pill, Freddie Gibbs, and Fashawn. Wiz Khalifa was named 2010 "Rookie Of The Year" by "The Source", with alongside Rick Ross, "The Man Of The Year".^[20] He toured with rapper Yelawolf on a 20-date tour, the Deal Or No Deal Tour.^[21] Khalifa released the free mixtape Kush and Orange Juice for download on April 14, 2010. Due to Khalifa's devoted grassroots fan base, the mixtape became the No. 1 trending topic on Twitter with the hash tag #kushandorangejuice, and "Kush and Orange Juice download” ranked No. 1 on Google’s hot search trends.^[22]

2010: Signing with Atlantic Records[link]

Citing music industry insiders, New York magazine wrote that Khalifa signed with Atlantic Records in April 2010, although the rapper did not confirm it.^[23] He stated to AllHipHop in June 2010 that he was working on a new album, but was weighing his options and had not yet decided on a label to distribute it.^[24] Khalifa confirmed to MTV on July 30 that he was signing an Atlantic Records deal.^[25]

Wiz Khalifa on stage in Boston in August 2010.

Khalifa was featured in a remix and video for the 2010 Rick Ross single "Super High", alongside Curren$y.^[26] He guested on the mixtape Grey Goose, Head Phones, and Thirsty Women by St. Louis rapper M.C,^[27] and was featured on the track "The Breeze (Cool)" on rapper Wale's August 2010 mixtape More About Nothing.^[28] Khalifa was named MTV's Hottest Breakthrough MC of 2010, winning with nearly 70,000 votes, and beating out finalists Nicki Minaj, J. Cole, Travis Porter, and Diggy Simmons.^[29]

Khalifa appeared at the Soundset 2010 festival in May 2010 in Minneapolis, Minnesota, alongside Method Man & Redman, Del the Funky Homosapien and Hieroglyphics, Atmosphere, Murs, Cage, and others.^[30] He also performed at the 2010 Rock the Bells festival, along with hip hop veterans Wu-Tang Clan, Snoop Dogg, Lauryn Hill, A Tribe Called Quest, Rakim, KRS-One, Jedi Mind Tricks and Slick Rick.^[31] Khalifa declined an invitation to tour with rapper Drake and launched his own "Waken Baken" tour, a 50-city national tour with rapper Yelawolf. The tour, scheduled to last from September to November 2010, has, as of October, sold out every venue.^[8] On November 2010, during his "Waken Baken" tour at East Carolina University, Wiz Khalifa was arrested for possession and trafficking of marijuana. He was then released the next morning after a $300K bail, and resumed his tour. Khalifa performed in a cypher during the 2010 BET Hip-Hop Awards. He recited his verse from the song, "The Check Point", from his mixtape with Curren$y, How Fly.^[32]

[edit] 2010–11: Mainstream success and Rolling Papers

Wiz Khalifa at SXSW in 2010

Khalifa released "Black and Yellow", his first single for Rostrum/Atlantic, produced by Stargate, which has received radio airplay.^[8][33] The single was peaked at number 1 on the Billboard Hot 100; the title of the song refers to the colours of the City of Pittsburgh.^[34] Khalifa released his debut album with Atlantic Records in 2011.^[35] He appeared with Curren$y on the track "Scaling the Building" on producer Ski Beatz' 2010 album, 24 Hour Karate School.^[36] Khalifa's record label is Taylor Gang Records, named after his love of Chuck Taylor All-Stars^[8], and Taylor Allderdice High School in Pittsburgh, PA, where he graduated from.

On March 29, 2011, Khalifa released his first studio album, Rolling Papers. The album debuted at number two on the US Billboard 200 chart, with first-week sales of 197,000 copies in the United States.^[37] Shortly afterward on March 31, 2011 Wiz Khalifa performed at Emory University in Atlanta, Georgia as part of the school's annual Dooley's Weekend.^[38] On June 26, 2011, Khalifa was nominated and won Best New Artist at the BET Awards of 2011.^[39] Khalifa collaborated with British rapper Tinie Tempah whom Tinie announced in an interview with Rolling Stone that his next single is to be called "Till I'm Gone" and would feature Wiz Khalifa and is to be produced by Stargate.^[40][41] The single and the video song were released at the end of June 2011.^[42]

Personal life[link]

Thomaz proposed to model Amber Rose on March 1, 2012 showing off the ring on Twitter.^[43] He is personal friends with Snoop Dogg, Juicy J, Yelawolf, and fellow Pittsburgh rapper Mac Miller.^[44]

In March 2012, Thomaz purchased a 2.8 private wooded acres with a 3,891-square-foot residence in Canonsburg, Pennsylvania, a small community southwest of Pittsburgh. The residence includes 5-bedroom, 4-bath eco-friendly, Brazilian Koa floors, stainless steel appliances, a separate guest house, and a lavish master suite with high ceilings.^[45] He currently resides there with his fiancée Amber Rose.

Discography[link]

Studio albums

• 2006: Show and Prove
• 2009: Deal or No Deal
• 2011: Rolling Papers
• 2012: O.N.I.F.C. ^[11][46][47]

Collaborative albums

• 2011: Mac & Devin Go to High School (with Snoop Dogg)
• 2012: TBA (with Taylor Gang)

Awards and nominations[link]

References[link]

External links[link]

Wikimedia Commons has media related to: Wiz Khalifa

• Official website
• Wiz Khalifa on Facebook
• Wiz Khalifa on Myspace
• Wiz Khalifa on Twitter
• Wiz Khalifa at MTV
• Non-commercial Wiz Khalifa mixtapes