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Kawasaki Rose
is a Japanese paperfolder and origami theorist who is known for his geometrically innovative models. He is particularly famous for his series of fourfold symmetry "roses", all based on a twisting maneuver that allows the petals to seem to curl out from the center of the flower. Kawasaki also teaches mathematics at Sasebo Technical Junior College. Kawasaki was the first to develop the technique of iso-area folding, which allows the folder to end up with each side of the paper displayed in equal amounts. It consists of building a mirror-symmetrical crease pattern A crease pattern is an origami diagram that consists of all or most of the creases in the final model, rendered into one image. This is useful for diagramming complex and super-complex models, where the model is often not simple enough to diagram e ... and then collapsing it to find a finished form, usually a geometric shape such as a cube. He also discovered and proved that with any given flat point in an origami model ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kurume, Fukuoka
is a Cities of Japan, city in Fukuoka Prefecture, Japan. As of June 1, 2019, the city has an estimated population of 303,579 and a population density of 1,320 persons per km². The total area is 229.96 km². On February 5, 2005, the town of Kitano, Fukuoka, Kitano (from Mii District, Fukuoka, Mii District), the towns of Jōjima, Fukuoka, Jōjima and Mizuma, Fukuoka, Mizuma (both from Mizuma District, Fukuoka, Mizuma District), and the town of Tanushimaru, Fukuoka, Tanushimaru (from Ukiha District, Fukuoka, Ukiha District) were merged into Kurume. Geography Climate Kurume has a humid subtropical climate (Köppen climate classification, Köppen: ''Cfa''). The average annual temperature in Kurume is . The average annual rainfall is with July as the wettest month. The temperatures are highest on average in August, at around , and lowest in January, at around . The highest temperature ever recorded in Kurume was on 13 August 2018; the coldest temperature ever recorded was on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese People
The are an East Asian ethnic group native to the Japanese archipelago."人類学上は，旧石器時代あるいは縄文時代以来，現在の北海道〜沖縄諸島（南西諸島）に住んだ集団を祖先にもつ人々。" () Japanese people constitute 97.9% of the population of the country of Japan. Worldwide, approximately 129 million people are of Japanese descent; of these, approximately 122.5 million are residents of Japan. People of Japanese ancestry who live outside Japan are referred to as , the Japanese diaspora. Depending on the context, the term may be limited or not to mainland Japanese people, specifically the Yamato (as opposed to Ryukyuan and Ainu people). Japanese people are one of the largest ethnic groups in the world. In recent decades, there has also been an increase in the number of multiracial people with both Japanese and non-Japanese roots, including half Japanese people. History Theories of origins Archaeological evidence indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Origami
) is the Japanese paper art, art of paper folding. In modern usage, the word "origami" is often used as an inclusive term for all folding practices, regardless of their culture of origin. The goal is to transform a flat square sheet of paper into a finished sculpture through folding and sculpting techniques. Modern origami practitioners generally discourage the use of cuts, glue, or markings on the paper. Origami folders often use the Japanese word ' to refer to designs which use cuts. On the other hand, in the detailed Japanese classification, origami is divided into stylized ceremonial origami (儀礼折り紙, ''girei origami'') and recreational origami (遊戯折り紙, ''yūgi origami''), and only recreational origami is generally recognized as origami. In Japan, ceremonial origami is generally called "origata" (:ja:折形) to distinguish it from recreational origami. The term "origata" is one of the old terms for origami. The small number of basic Origami techniques, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematics Of Paper Folding
The discipline of origami or paper folding has received a considerable amount of mathematical study. Fields of interest include a given paper model's flat-foldability (whether the model can be flattened without damaging it), and the use of paper folds to solve up-to cubic mathematical equations. Computational origami is a recent branch of computer science that is concerned with studying algorithms that solve paper-folding problems. The field of computational origami has also grown significantly since its inception in the 1990s with Robert Lang's TreeMaker algorithm to assist in the precise folding of bases. Computational origami results either address origami design or origami foldability."Lecture: Recent Results in Computational Origami". ''Origami USA: We are the American national society devoted to origami, the art of paperfolding''. Retrieved 2022-05-08. In origami design problems, the goal is to design an object that can be folded out of paper given a specific target configur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kawasaki New Rose
Kawasaki ( ja, 川崎, Kawasaki, river peninsula, links=no) may refer to: Places *Kawasaki, Kanagawa, a Japanese city **Kawasaki-ku, Kawasaki, a ward in Kawasaki, Kanagawa **Kawasaki City Todoroki Arena **Kawasaki Stadium, a multi-sport stadium *Kawasaki, Fukuoka, a Japanese town *Kawasaki, Iwate, a Japanese village *Kawasaki, Miyagi, a Japanese town *Tokyo-Yokohama-Kawasaki, Japanese conurbation Transportation *Kawasaki Route ( ja, 川崎線, Kawasaki-sen, links=no), a toll road of the Shuto expressway system in Greater Tokyo *Kawasaki line, several lines *Kawasaki station, several stations Businesses *Kawasaki Heavy Industries (KHI), a Japanese manufacturer of aerospace equipment, ATVs, engines, industrial plants, motorcycles, jet skis, ships, tractors, trains and so on **Kawasaki Heavy Industries Motorcycle & Engine, a division of Kawasaki Heavy Industries ***Kawasaki motorcycles ***Kawasaki Motors Racing, the European subsidiary of Kawasaki Heavy Industries **Kawasaki Shipbuil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crease Pattern
A crease pattern is an origami diagram that consists of all or most of the creases in the final model, rendered into one image. This is useful for diagramming complex and super-complex models, where the model is often not simple enough to diagram efficiently. The use of crease patterns originated with designers such as Neal Elias, who used them to record how their models were made. This allowed the more prolific designers to keep track of all their models, and soon crease patterns began to be used as a means for communication of ideas between designers. After a few years of this sort of use, designers such as Robert J. Lang, Meguro Toshiyuki, Jun Maekawa and Peter Engel Peter Engel (born ) is an American television producer who is best known for his teen sitcoms that appeared on TNBC, a former Saturday morning block on NBC which featured all teenage-oriented programs for educational purposes. His most well kn ... began to design using crease patterns. This allowed them to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kawasaki's Theorem
Kawasaki's theorem or Kawasaki–Justin theorem is a theorem in the mathematics of paper folding that describes the crease patterns with a single Vertex (geometry), vertex that may be folded to form a flat figure. It states that the pattern is flat-foldable if and only if alternatingly adding and subtracting the angles of consecutive folds around the vertex gives an alternating series, alternating sum of zero. Crease patterns with more than one vertex do not obey such a simple criterion, and are NP-hard to fold. The theorem is named after one of its discoverers, Toshikazu Kawasaki. However, several others also contributed to its discovery, and it is sometimes called the Kawasaki–Justin theorem or Husimi's theorem after other contributors, Jacques Justin and Kôdi Husimi.The name "Yasuji Husimi" appearing in and sometimes associated with this theorem is a mistranslation of the kanji "康治" in Kôdi Husimi's name. Statement A one-vertex crease pattern consists of a set of Ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kunihiko Kasahara
(born 1941) is a Japanese origami master. He has made more than a hundred origami models, from simple lion masks to complex modular origami, such as a small stellated dodecahedron. He does not specialize in what is known as "super complex origami", but rather he likes making simple, elegant animals, and modular designs such as polyhedra, as well as exploring the mathematics and geometry of origami. A book expressing both approaches is ''Origami for the Connoisseur'' (Kasahara and Takahama), which gathers modern innovations in polyhedral construction, featuring moderately difficult but accessible methods for producing the Platonic solids from single sheets, and much more. Kasahara is perhaps origami's most enthusiastic designer and collector of origami models that are variations on a cube, a number of which appear in Vol. 2 of a 2005 three volume work (presently available only in Japanese). Vol. 3 of the same work is devoted to another Kasahara interest: reverse engineering and di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1955 Births
Events January * January 3 – José Ramón Guizado becomes president of Panama. * January 17 – , the first nuclear-powered submarine, puts to sea for the first time, from Groton, Connecticut. * January 18– 20 – Battle of Yijiangshan Islands: The Chinese Communist People's Liberation Army seizes the islands from the Republic of China (Taiwan). * January 22 – In the United States, The Pentagon announces a plan to develop intercontinental ballistic missiles (ICBMs), armed with nuclear weapons. * January 23 – The Sutton Coldfield rail crash kills 17, near Birmingham, England. * January 25 – The Presidium of the Supreme Soviet of the Soviet Union announces the end of the war between the USSR and Germany, which began during World War II in 1941. * January 28 – The United States Congress authorizes President Dwight D. Eisenhower to use force to protect Formosa from the People's Republic of China. February * February 10 – The United States Sev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
