Battery (electricity)

An electric battery is a device consisting of two or more electrochemical cells that convert stored chemical energy into electrical energy. Each cell has a positive terminal, or cathode, and a negative terminal, or anode. The terminal marked positive is at a higher electrical potential energy than is the terminal marked negative. The terminal marked negative is the source of electrons that when connected to an external circuit will flow and deliver energy to an external device. When a battery is connected to an external circuit, electrolytes are able to move as ions within, allowing the chemical reactions to be completed at the separate terminals and so deliver energy to the external circuit. It is the movement of those ions within the battery which allows current to flow out of the battery to perform work. Although the term battery technically means a device with multiple cells, single cells are also popularly called batteries.

Primary (single-use or "disposable") batteries are used once and discarded; the electrode materials are irreversibly changed during discharge. Common examples are the alkaline battery used for flashlights and a multitude of portable devices. Secondary (rechargeable batteries) can be discharged and recharged multiple times; the original composition of the electrodes can be restored by reverse current. Examples include the lead-acid batteries used in vehicles and lithium-ion batteries used for portable electronics.

Battery Park

Battery Park is a 25-acre (10 ha) public park located at the southern tip of Manhattan Island in New York City, facing New York Harbor.

Name

The area and park are named for the artillery batteries that were positioned there in the city's early years to protect the settlement behind them.Battery Park City was named after the area.

In 2015, the New York City Department of Parks and the Battery Conservancy announced that the park would revert to its historic name, The Battery.

History

The southern shoreline of Manhattan Island had long been known as "The Battery," and has been a popular promenade since the 17th century. At the time, an artillery battery there served as protection to the town. The Battery was the center of Evacuation Day celebrations commemorating the departure of the last British troops in the United States after the American Revolutionary War. Just prior to the War of 1812, the West Battery, later renamed Castle Clinton, was erected on a small artificial offshore island nearby, to replace the earlier batteries in the area; later, when the land of Battery Park was created, it encircled and incorporated the island.

Master of Puppets

Master of Puppets is the third studio album by American heavy metal band Metallica, released on March 3, 1986 by Elektra Records. Recorded at the Sweet Silence Studios with producer Flemming Rasmussen, it was the first Metallica album released on a major label. Master of Puppets was the band's last album to feature bassist Cliff Burton, who died in a bus crash in Sweden during the album's promotional tour. The album peaked at number 29 on the Billboard 200 and became the first thrash metal album to be certified platinum. It was certified 6× platinum by the Recording Industry Association of America (RIAA) in 2003 for shipping six million copies in the United States. The album was eventually certified 6× platinum by Music Canada and gold by the British Phonographic Industry (BPI).

Master of Puppets was released to critical acclaim and has been included in several publications' best album lists. Its driving, virtuosic music and angry, political lyrics drew praise from critics outside the metal community. The album is considered the band's strongest effort of the period, and is one of the most influential heavy metal albums. Critics credit it for consolidating the American thrash metal scene with its atmospheric and meticulously performed songs. Many bands from all genres of heavy metal have covered the album's songs, including tribute albums.

Battery (baseball)

In baseball, the term battery refers collectively to the pitcher and the catcher, who may also be called batterymen or batterymates of one another.

History

The use of the word 'battery' in baseball was first coined by Henry Chadwick in the 1860s in reference to the firepower of a team's pitching staff and inspired by the artillery batteries then in use in the American Civil War. Later, the term evolved to indicate the combined effectiveness of pitcher and catcher.

Famous batteries

Some batteries are remarked upon as more than usually productive. Yogi Berra (catcher) and Whitey Ford (pitcher) were World-Series level players who were batterymates with the Yankees since Ford's rookie season in 1950. They started 212 games together.

In the early 20th century, some prominent pitchers were known to have picked their favorite catchers. Sportswriter Fred Lieb recalls the batteries of Christy Mathewson/Frank Bowerman beginning in 1899 with the New York Giants, Jack Coombs/Jack Lapp beginning in 1908 with the Philadelphia Athletics, Cy Young/Lou Criger gaining the greatest attention in 1901 with the Boston Americans (later the Red Sox), and Grover Cleveland Alexander/Bill Killefer beginning in 1911 with the Philadelphia Phillies.

Electricity

Electricity is the set of physical phenomena associated with the presence and flow of electric charge. Electricity gives a wide variety of well-known effects, such as lightning, static electricity, electromagnetic induction and electric current. In addition, electricity permits the creation and reception of electromagnetic radiation such as radio waves.

In electricity, charges produce electromagnetic fields which act on other charges. Electricity occurs due to several types of physics:

Electricity (Elton John song)

"Electricity" is a song composed by Elton John and Lee Hall for the Billy Elliot the Musical.

Reception

It was John's 63rd—and to date last -- UK Top 40 hit, peaking at #4 on the UK Singles Chart. The song was included as a bonus track on the UK re-issue of Elton's album Peachtree Road.

Background

The song is sung by Billy Elliot in the stage production at his audition for a place at The Royal Ballet School in London. Billy is asked "What does it feel like, when you are dancing?" by one of the panel. Billy responds, hesitantly at first, "I really can't explain it... I haven't got the words..." And then (see full lyrics) the music takes hold, and he goes into an energetic song. Describes dancing as "Something that you can't control". After two verses, each with a chorus, Billy leaps into a frenetic dance; in this dance many skills such as acrobatics are used (the rhythm for this section of the instrumental varies from Billy to Billy, depending on each actor's dance strengths). The number concludes with another verse and Billy doing several pirouettes or tumbles. The most notable lyric in this piece is that of the title: 'Electricity sparks inside of me and I'm free, I'm free!" It was inspired by the scene in the film, which it follows closely, in which Billy describing dancing as "Electricity". His passion, shown in his description, is the implied reason for Billy's acceptance into The Royal Ballet School.

Electricity (album)

Electricity is a 1994 album by New Zealand pianist Peter Jefferies. It was released on the Ajax Records label. The album includes reworkings of previous Peter Jefferies tracks, "Wined Up" and "Crossover" (from a 1993 7" recorded with Stephen Kilroy), and a cover of Barbara Mannings' "Scissors".

Track listing

All songs written and composed by Peter Jefferies, except where noted. 

Personnel

References

External links