Gas

Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide). A gas mixture would contain a variety of pure gases much like the air. What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. This separation usually makes a colorless gas invisible to the human observer. The interaction of gas particles in the presence of electric and gravitational fields are considered negligible as indicated by the constant velocity vectors in the image. One type of commonly known gas is steam.

The gaseous state of matter is found between the liquid and plasma states, the latter of which provides the upper temperature boundary for gases. Bounding the lower end of the temperature scale lie degenerative quantum gases which are gaining increasing attention. High-density atomic gases super cooled to incredibly low temperatures are classified by their statistical behavior as either a Bose gas or a Fermi gas. For a comprehensive listing of these exotic states of matter see list of states of matter.

Tanche (family)

Tanche and Tank (other spellings are Tanch, Tanke, Tanck, and Tancke) is the name of one or more Dano-Norwegian families. One of those is originating from Haderslev.

There are several persons by the name Tanche and similar spellings in Denmark, Norway and Germany. The tradition says that a German by the name Tanche was ennobled by Charles IV of the Holy Roman Empire (reign: 1346–78). It is not known whether Martin Tanche, who was ennobled by the King of Denmark and Norway, belonged to the same families as the Norwegian families Tanche and Tank.

Tanche in Denmark

Martin Tanche

Martin Tanche, since 1638 having been one of King Christian IV's officials, was on 23 October 1643 confirmed as a member of the combined Danish and Norwegian nobility, and he received as well a coat of arms.

Martin Tanche was the Danish Resident in the Hague. He was among the noblemen who participated at the 1660 meeting of the estates (Danish: stændermøde) in Copenhagen. At the end of his life, Tanche was Chamber Councillor for the Prince-elector of Saxony.

Tank (band)

Tank is a British heavy metal band, formed in 1980 by Algy Ward, a former member of The Damned. The band is known as part of the New Wave of British Heavy Metal movement. Tank was often compared to Motörhead as both bands, trios fronted by singing bassists, played a loose, almost punk-styled metal music with often colourful lyrics.

History

Their 1982 debut album, Filth Hounds of Hades, was positively received by both punk and metal fans as well as most critics, regarded now as one of the best albums of the NWOBHM movement. Allmusic critic, Eduardo Rivadavia; described it as "Tank's best album ever, and qualifying it as an essential item in the record collection of any serious '80s metal fan."

As was the case with many other bands of the era, Tank was never able to build on the promise shown by their first album. The band continued on for years through lineup changes and waning commercial fortunes before finally disbanding in 1989. Ward resurrected the band in 1997 playing tour dates around Europe and Japan for a couple of years. A new album, Still At War, emerged in 2002. In August 2006 Ward reported that he was putting the finishing touches on the demos for the next Tank album, Sturmpanzer. The band's website has listed the release date for this album as "TBA" for years.

Tank (video game)

Tank is a two-player arcade game by Atari Inc. subsidiary Kee Games, originally released on November 5, 1974 and designed by Steve Bristow and Lyle Rains.

Technology

Tank uses a black and white Motorola television for its display. The control panel consists of four military-style joysticks, two per player, with a fire button mounted on top of the right joystick of each pair.

Inserting coins immediately starts the game, placing the players in the upper right and lower left corners of the maze respectively. The first 50 or so cabinets produced have a protruding wooden coin box area between the two speaker grills.

Tank was the first game to use IC-based ROM to store graphical data. Although Gran Trak 10, released in July 1974, was the first arcade game to use solid state ROM data, Gran-Trak's ROM used an earlier diode-based ROM technology.

The custom game cabinet was designed by Peter L. Takaichi and patented October 20, 1975 (US Patent # D243,624).

Gameplay

Players move their tanks through a maze on screen, avoiding mines and shooting each other. The players are represented by one black and one white tank sprite, and mines are denoted by an "X". Points are scored by shooting the opponent or when a player runs over a mine; the player with the highest score at the end of the time limit wins the game.

Free

Media

Arts and philosophy

Computing

Mathematics

Free: The Future of a Radical Price

Free: The Future of a Radical Price is the second book written by Chris Anderson, Editor in chief of Wired magazine. The book was published on July 7, 2009 by Hyperion. He is also the author of The Long Tail, published in 2006.

Overview

Free follows a thread from the previous work. It examines the rise of pricing models which give products and services to customers for free, often as a strategy for attracting users and up-selling some of them to a premium level. That class of model has become widely referred to as "freemium" and has become very popular for a variety of digital products and services.

Release

Free was released in the United States on July 7, 2009, though the night before, on his blog, Chris Anderson posted a browser readable version of the book and the unabridged audiobook version. Anderson generated controversy for plagiarizing content from the online encyclopedia Wikipedia in Free. Anderson responded to the claim on his The Long Tail blog, stating that there were disagreements between him and the publisher over accurate citation of Wikipedia due to the changing nature of its content, leading him to integrate footnotes into the text. Also on his blog, he took full responsibility for the mistakes and noted that the digital editions of Free were corrected. The notes and sources were later provided as a download on his blog.

Free (David Garrett album)

Free is a 2007 album by violinist David Garrett, released in Europe by Decca.

Track listing

References