Atom

An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are very small; typical sizes are around 100 pm (a ten-billionth of a meter, in the short scale). However, atoms do not have well-defined boundaries, and there are different ways to define their size that give different but close values.

Atoms are small enough that classical physics gives noticeably incorrect results. Through the development of physics, atomic models have incorporated quantum principles to better explain and predict the behavior.

Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and typically a similar number of neutrons (none in hydrogen-1). Protons and neutrons are called nucleons. More than 99.94% of an atom's mass is in the nucleus. The protons have a positive electric charge, the electrons have a negative electric charge, and the neutrons have no electric charge. If the number of protons and electrons are equal, that atom is electrically neutral. If an atom has more or fewer electrons than protons, then it has an overall negative or positive charge, respectively, and it is called an ion.

Black Parade

Black Parade may refer to:

See also

The Avett Brothers

The Avett Brothers /ˈeɪvᵻt/ are an American folk rock band from Mount Pleasant, North Carolina, United States. The band is made up of two brothers, Scott Avett (banjo) and Seth Avett (guitar), as well as Bob Crawford (double bass) and Joe Kwon (cello). Mike Marsh (drums), Tania Elizabeth (violin) and Paul Defiglia (keyboard) are touring members of the band, with Kwon featured on recordings from 2007's Emotionalism and later.

Following on from Seth and Scott's former rock band Nemo, the Avett Brothers combine bluegrass, country, punk, pop melodies, folk, rock and roll, indie rock, honky tonk, and ragtime to produce a novel sound described by the San Francisco Chronicle as having the "heavy sadness of Townes Van Zandt, the light pop concision of Buddy Holly, the tuneful jangle of the Beatles, the raw energy of the Ramones."

History

Beginnings

Although they have played music together since childhood, the brothers Scott and Seth Avett truly began their partnership in the late 1990s with the merger of Seth's Mount Pleasant High School rock band, Margo, and Scott's college group, Nemo. Seth's band Margo had released a song "Dumbfight" on a compilation album before merging with Nemo. After releasing three albums under the "Nemo" moniker the Avetts started experimenting with acoustic music with some friends at night. After a few street performances and get-togethers they dubbed "The Back Porch Project" or "Nemo Downstairs," the brothers and Nemo guitarist John Twomey put together an EP titled The Avett Bros. in 2000.

The Black

The Black is a rock band from Austin, Texas that formed in 2002 when singer/songwriter David Longoria began collaborating with drummer Andy Morales. The two were later joined by renowned guitarist Alan Schaefer (son of famous guitar maker Ed Schaefer) and Nick Moulos of the Austin band The Crackpipes.

History

The group began playing regularly at Emo's and house parties until Schaefer moved to France to teach English in 2004. Longoria joined major label act ...And You Will Know Us by the Trail of Dead during the band's hiatus, his first performance with them on the Late Show with David Letterman in January 2005. Schaefer joined the rest of the band to support Trail of Dead on their European Worlds Apart tour. During the tour Trail of Dead was the band's backing band for a handful of shows.

Their full-length album Tanglewood was recorded in 2004 and released the spring of 2005 on their own record label K Woo.

The band's next release, titled Donna, was released in the summer of 2007.

The Black Parade

The Black Parade is the third studio album by American rock band My Chemical Romance. Released on October 23, 2006 through Reprise Records, it was produced by Rob Cavallo, known for having produced multiple albums for Goo Goo Dolls and Green Day. It is a rock opera centering on a dying character with cancer known as "The Patient". The album tells the story of his apparent death, experiences in the afterlife, and subsequent reflections on his life.

Four singles were released from the album: "Welcome to the Black Parade", "Famous Last Words", "I Don't Love You", and "Teenagers".The Black Parade has received generally favorable reviews, and the band achieved its first Number 1 single in the UK with "Welcome to the Black Parade". The album debuted at number two on both the Billboard 200 and the UK Albums Chart and is also certified as platinum by the RIAA, as well as a Platinum certification in the UK and a Gold certification in Argentina by the CAPIF and in Chile by the IFPI Chile.The Black Parade was given the Platinum Europe Award by the International Federation of the Phonographic Industry for 1 million sales in Europe. The limited edition boxed set also earned My Chemical Romance a Grammy Award nomination. In the video game Guitar Hero II (Xbox 360 version), the song "Dead!" was added to the game's track list prior to the earlier PS2 version, and the three songs "Teenagers," "Famous Last Words" and "This Is How I Disappear" are available for download. The Black Parade has sold 1,610,000 copies in the US as of October 2010, and has sold 3,000,000 copies worldwide.