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Ryōichi Yazu
was a Japanese inventor. He is best known for his invention of Japan's first mechanical calculator. Birth and education Ryōichi Yazu was born in Buzen, Fukuoka as the son of a village mayor. He attended primary and middle school in his home village of Iwaya and the city of Buzen. At the age of 16 he left middle school and travelled to Osaka to pursue his interest in flight, studying mathematics and engineering at a private school in Osaka. At the age of 22 he returned to Buzen and began work on a thesis on the mechanics of flight. Two years later he brought the thesis and a model of his calculator on a visit to the novelist and army physician Mori Ōgai. Impressed, Ōgai wrote recommendations that led to a special research position at the Tokyo Imperial College of Engineering, where he worked on the design of a propeller-driven airplane. Mechanical calculator In March 1902 Yazu applied for a patent on his mechanical calculator, called the Yazu Arithmometer. It was a gea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chūhachi Ninomiya
was a Japanese aviation pioneer. He is remembered for his unique aircraft designs - the "Karasu-gata mokei hikouki" ("Crow-type model aircraft", 1891) and the "Tamamushi-gata hikouki" ("Buprestidae, Jewel beetle type flyer", 1893). He designed a flying machine with three engines earlier than the Wright brothers, it contributed to Japan's accumulation of capabilities to design and manufacture aircraft by the 1930s. Early life Chūhachi was born in Yawatahama-ura, Uwa District, Ehime, Uwa District, Iyo Province (now Yawatahama, Ehime). At the age of 12, his father, a local merchant, died, forcing him to take up a job to make a living. While working at a printing office, drug store, and elsewhere, he taught himself physics and chemistry. He also became an expert at making kites and the sale of his original models earned him money for books. Idea for flying In 1887 Chūhachi was conscripted into the Imperial Japanese Army. In November 1889, during maneuvers, he saw crows gliding and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1878 Births
Events January * January 5 – Russo-Turkish War: Battle of Shipka Pass IV – Russian and Bulgarian forces defeat the Ottoman Empire. * January 9 – Umberto I becomes King of Italy. * January 17 – Russo-Turkish War: Battle of Philippopolis – Russian troops defeat the Ottoman Empire. * January 23 – Benjamin Disraeli orders the British fleet to the Dardanelles. * January 24 – Russian revolutionary Vera Zasulich shoots at Fyodor Trepov, Governor of Saint Petersburg. * January 28 – In the United States: ** The world's First Telephone Exchange begins commercial operation in New Haven, Connecticut. ** '' The Yale News'' becomes the first daily college newspaper in the U.S. * January 31 – Turkey agrees to an armistice at Adrianople. February * February 2 – Greece declares war on the Ottoman Empire. * February 7 – Pope Pius IX dies, after a 31½ year pontificate (the longest definitely confirmed). * February 8 & ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation Pioneers
Aviation pioneers are people directly and indirectly responsible for the creation and advancement of human flight capability, including people who worked to achieve manned flight before the invention of aircraft, as well as others who achieved significant "firsts" in aviation after heavier-than-air flight became routine. Pioneers of aviation have contributed to the development of aeronautics Aeronautics is the science or art involved with the study, design process, design, and manufacturing of air flight-capable machines, and the techniques of operating aircraft and rockets within the atmosphere. While the term originally referred ... in one or more ways: through science and theory, theoretical or applied design, by constructing models or experimental prototypes, the mass production of aircraft for commercial and government request, achievements in flight, and providing financial resources and publicity to expand the field of aviation. Table key Pioneer type * Science: C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation Inventors
Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' include fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air aircraft such as hot air balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Clément Ader built the "Ader Éole" in France and made an uncontrolled, powered hop in 1890. This was the first powered aircraft, although it did not achieve controlled flight. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896. A major leap followed with the construction of the ''Wright Flyer'', the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet engine which enabled aviation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Aerospace Engineers
Japanese may refer to: * Something from or related to Japan, an island country in East Asia * Japanese language, spoken mainly in Japan * Japanese people, the ethnic group that identifies with Japan through ancestry or culture ** Japanese diaspora, Japanese emigrants and their descendants around the world * Japanese citizens, nationals of Japan under Japanese nationality law ** Foreign-born Japanese, naturalized citizens of Japan * Japanese writing system, consisting of kanji and kana * Japanese cuisine, the food and food culture of Japan See also * List of Japanese people * * Japonica (other) * Japanese studies , sometimes known as Japanology in Europe, is a sub-field of area studies or East Asian studies involved in social sciences and humanities research on Japan. It incorporates fields such as the study of Japanese language, history, culture, litera ... {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Science Museum Of Japan
The is in the northeast corner of Ueno Park in Tokyo. The museum has exhibitions on pre- Meiji science in Japan. It is the venue of the taxidermied bodies of the legendary dogs Hachikō and Taro and Jiro. A life-size blue whale model and a steam locomotive are also on display outside. History Blue whale Life size model. Opened in 1877, it has had several names, including Ministry of Education Museum, Tokyo Museum, Tokyo Science Museum, the National Science Museum of Japan, and the National Museum of Nature and Science as of 2007. It was renovated in the 1990s and 2000s, and offers a wide variety of natural history exhibitions and interactive scientific experiences. It was completed as the main building of the Tokyo Science Museum in September 1931 as part of the reconstruction project after the Great Kanto Earthquake in Neo-Renaissance style. Designed by Kenzo Akitani, an engineer of the Ministry of Education, Culture, Sports, Science and Technology, Building Division. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Computing Hardware
The history of computing hardware spans the developments from early devices used for simple calculations to today's complex computers, encompassing advancements in both analog and digital technology. The first aids to computation were purely mechanical devices which required the operator to set up the initial values of an elementary arithmetic operation, then manipulate the device to obtain the result. In later stages, computing devices began representing numbers in continuous forms, such as by distance along a scale, rotation of a shaft, or a specific voltage level. Numbers could also be represented in the form of digits, automatically manipulated by a mechanism. Although this approach generally required more complex mechanisms, it greatly increased the precision of results. The development of transistor technology, followed by the invention of integrated circuit chips, led to revolutionary breakthroughs. Transistor-based computers and, later, integrated circuit-based computers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mechanical Calculator
A mechanical calculator, or calculating machine, is a mechanical device used to perform the basic operations of arithmetic automatically, or a simulation like an analog computer or a slide rule. Most mechanical calculators were comparable in size to small desktop computers and have been rendered obsolete by the advent of the electronic calculator and the digital computer. Surviving notes from Wilhelm Schickard in 1623 reveal that he designed and had built the earliest known apparatus fulfilling the widely accepted definition of a mechanical calculator (a counting machine with an automated tens-carry). His machine was composed of two sets of technologies: first an abacus made of Napier's bones, to simplify multiplications and divisions first described six years earlier in 1617, and for the mechanical part, it had a dialed pedometer to perform additions and subtractions. A study of the surviving notes shows a machine that could have jammed after a few entries on the same dial. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mechanical Engineering Heritage (Japan)
The is a list of sites, landmarks, machines, and documents that made significant contributions to the development of mechanical engineering in Japan. Items in the list are certified by the . Overview The ''Mechanical Engineering Heritage'' program was inaugurated in June 2007 in connection with the 110th anniversary of the founding of the JSME. The program recognizes machines, related systems, factories, specification documents, textbooks, and other items that had a significant impact on the development of mechanical engineering. When a certified item can no longer be maintained by its current owner, the JSME acts to prevent its loss by arranging a transfer to the National Science Museum of Japan or to a local government institution. The JSME plans to certify several items of high Industrial Heritage, heritage value over years. Categories Items in the Mechanical Engineering Heritage (Japan) are classified into four categories: # Sites: Historical sites that contain heritag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
