Historically, katana (刀) were one of the traditionally made Japanese swords (日本刀, nihontō) that were used by the samurai of feudal Japan. Modern versions of the katana are sometimes made using non-traditional materials and methods. The katana is characterized by its distinctive appearance: a curved, slender, single-edged blade with a circular or squared guard and long grip to accommodate two hands.
The production of swords in Japan is divided into specific time periods:
The first use of "katana" (gatana) as a word to describe a long sword that was different from a tachi occurs as early as the Kamakura Period (1185–1333). These references to "uchigatana" and "tsubagatana" seem to indicate a different style of sword, possibly a less costly sword for lower-ranking warriors. The evolution of the tachi into the katana seems to have started during the early Muromachi period (1337 to 1573). Starting around the year 1400, long swords signed with the "katana" signature were made. This was in response to samurai wearing their tachi in what is now called "katana style" (cutting edge up). Japanese swords are traditionally worn with the signature facing away from the wearer. When a tachi was worn in the style of a katana, with the cutting edge up, the tachi's signature would be facing the wrong way. The fact that swordsmiths started signing swords with a katana signature shows that some samurai of that time period had started wearing their swords in a different manner.
Katana is Japanese for backsword and often refers to uchigatana, especially in English. For a list of fictional katana, see Katanas in fiction. Katana may also refer to:
The Dreamcast (Japanese: ドリームキャスト, Hepburn: Dorīmukyasuto) is a home video game console released by Sega on November 27, 1998 in Japan, September 9, 1999 in North America, and October 14, 1999 in Europe. It was the first in the sixth generation of video game consoles, preceding Sony's PlayStation 2, Nintendo's GameCube and Microsoft's Xbox. The Dreamcast is Sega's final home console, marking the end of the company's 18 years in the console market.
In contrast to the expensive hardware of the unsuccessful Sega Saturn, the Dreamcast was designed to reduce costs with "off-the-shelf" components, including a Hitachi SH-4 CPU and an NEC PowerVR2 GPU. Released in Japan to a subdued reception, the Dreamcast enjoyed a successful U.S. launch backed by a large marketing campaign, but interest in the system steadily declined as Sony built hype for the upcoming PlayStation 2. Sales did not meet Sega's expectations despite several price cuts, and the company continued to incur significant financial losses. After a change in leadership, Sega discontinued the Dreamcast on March 31, 2001, withdrawing from the console business and restructuring itself as a third-party publisher. 9.13 million Dreamcast units were sold worldwide.
Amphetamine (contracted from alpha‑methylphenethylamine) is a potent central nervous system (CNS) stimulant that is used in the treatment of attention deficit hyperactivity disorder (ADHD), narcolepsy, and obesity. Amphetamine was discovered in 1887 and exists as two enantiomers:levoamphetamine and dextroamphetamine. Amphetamine properly refers to a specific chemical, the racemic free base, which is equal parts of the two enantiomers, levoamphetamine and dextroamphetamine, in their pure amine forms. However, the term is frequently used informally to refer to any combination of the enantiomers, or to either of them alone. Historically, it has been used to treat nasal congestion and depression. Amphetamine is also used as a performance and cognitive enhancer, and recreationally as an aphrodisiac and euphoriant. It is a prescription drug in many countries, and unauthorized possession and distribution of amphetamine are often tightly controlled due to the significant health risks associated with recreational use.
Amphetamine is a psychostimulant drug.
Amphetamine may also refer to:
Amphetamine (Chinese: 安非他命; Jyutping: on1 fei1 taa1 ming6) is a 2010 Hong Kong film starring Byron Pang and Thomas Price. It revolves around the story of a Chinese fitness trainer, Kafka, who meets Daniel, a business executive. The film is directed by acclaimed Hong Kong Chinese film-maker Scud, the stage name of Danny Cheng Wan-Cheung. It was nominated for a Teddy Award at the Berlin International Film Festival of 2010. It explores several themes traditionally regarded as 'taboo' in Hong Kong society in an unusually open, convention-defying way, and features full-frontal male nudity in several scenes. It is the third of five publicly-released films by Scud. The four others are: City Without Baseball, released in 2008, Permanent Residence in 2009, Love Actually... Sucks! in 2011, and his most recent, Voyage, in 2013. His sixth film, Utopians, has now been completed and awaits release, whilst his seventh, Naked Nation, is currently in production.
Set after the 2008 financial collapse, the story follows Kafka, a swimming instructor, when he meets Daniel, a wealthy investment banker who changes his life. Daniel is openly gay, and helps Kafka to come out of the closet, despite Kafka's being Catholic, and they quickly fall in love.