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Clockwork Motor
Clockwork refers to the inner workings of either mechanical devices called clocks and watches (where it is also called the movement) or other mechanisms that work similarly, using a series of gears driven by a spring or weight. A clockwork mechanism is often powered by a clockwork motor, description of the clockwork motor in an antique phonograph consisting of a mainspring, a spiral torsion spring of metal ribbon. Energy is stored in the mainspring manually by ''winding it up'', turning a key attached to a ratchet which twists the mainspring tighter. Then the force of the mainspring turns the clockwork gears, until the stored energy is used up. The adjectives ''wind-up'' and ''spring-powered'' refer to mainspring-powered clockwork devices, which include clocks and watches, kitchen timers, music boxes, and wind-up toys. History The earliest known example of a clockwork mechanism is the Antikythera mechanism, a first-century BC geared analogue computer, somewhat astrolabe-lik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prim Clockwork
Prim may refer to: People *Prim (given name) *Prim (surname) Places *Prim, Virginia, unincorporated community in King George County * Dolní Přím, village in the Czech Republic; as Nieder Prim (Lower Prim) site of the Battle of Königgrätz *Saint-Prim, commune in Isère, France *Prim (Neckar), river in Baden-Württemberg, Germany, tributary of the Neckar * Prims, river in Rhineland-Palatinate, Germany, tributary of the Saar Other *Prim, a type of ''tamburica'' (musical instrument) *Prim or Primost, a Norwegian cheese *Prim, abbreviation for Primitive Methodist * Prim's algorithm for minimum spanning tree, developed by Robert C. Prim *PRIM (watches), a Czech trademark * Graham Street Prims F.C., football club in Derby, England * In computers, a geometric primitive, or prim, is a simple shape used in 3D modeling to build into more complex objects. ** A Sculpted prim, in Second Life, is a 3D parametric object whose 3D shape is determined by a texture, more advanced than the gam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renaissance
The Renaissance ( , ) , from , with the same meanings. is a period in European history The history of Europe is traditionally divided into four time periods: prehistoric Europe (prior to about 800 BC), classical antiquity (800 BC to AD 500), the Middle Ages (AD 500 to AD 1500), and the modern era (since AD 1500). The first early ... marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ideas and achievements of classical antiquity. It occurred after the Crisis of the Late Middle Ages and was associated with great social change. In addition to the standard periodization, proponents of a "long Renaissance" may put its beginning in the 14th century and its end in the 17th century. The traditional view focuses more on the Early modern period, early modern aspects of the Renaissance and argues that it was a break from the past, but many historians today focus more on its medieval a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip The Good
Philip III (french: Philippe le Bon; nl, Filips de Goede; 31 July 1396 – 15 June 1467) was Duke of Burgundy from 1419 until his death. He was a member of a cadet line of the Valois dynasty, to which all 15th-century kings of France belonged. During his reign, the Burgundian State reached the apex of its prosperity and prestige, and became a leading centre of the arts. Philip is known historically for his administrative reforms, his patronage of Flemish artists such as van Eyck and Franco-Flemish composers such as Gilles Binchois, and perhaps most significantly the seizure of Joan of Arc, whom Philip ransomed to the English after his soldiers captured her, resulting in her trial and eventual execution. In political affairs, he alternated between alliances with the English and the French in an attempt to improve his dynasty's powerbase. Additionally, as ruler of Flanders, Brabant, Limburg, Artois, Hainaut, Holland, Luxembourg, Zeeland, Friesland and Namur, he played ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lu Ban
Lu Ban (–444BC). was a Chinese architect or master carpenter, structural engineer, and inventor, during the Zhou Dynasty. He is revered as the Chinese Deity (Patron) of builders and contractors. Life Lu Ban was born in the state of Lu; a few sources claim he was born further to the west, in Dunhuang, to a family of carpenters or artisans during the Spring and Autumn period of the Zhou dynasty. His original name was He was also referred to as or Pan. He was supposed to have been an indifferent pupil until his love of learning was kindled by the scholar Zi Xia. He later learned woodworking from Bao Laodong. The great demand for his work supposedly compelled him to invent or improve several carpenter's tools—the saw, the square, the planer, the drill, the shovel, and an ink marking tool—to complete his many projects more quickly. His wife was also credited with inventing the umbrella in order to permit him to work in inclement weather. Inventions According to traditi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mozi
Mozi (; ; Latinized as Micius ; – ), original name Mo Di (), was a Chinese philosopher who founded the school of Mohism during the Hundred Schools of Thought period (the early portion of the Warring States period, –221 BCE). The ancient text ''Mozi'' contains material ascribed to him and his followers. Mozi taught that everyone is equal in the eyes of heaven. He believed that the decision of who is in power should be based on meritocracy, or those who are worthy of power should receive power. Mozi invoked heaven and called upon the Sage Kings to support his precedents. Born in what is now Tengzhou, Shandong Province, Mozi founded the school of Mohism, which argued strongly against both Confucianism and Daoism. Mozi's philosophy emphasized universal love, social order, the will of heaven, sharing, and honoring the worthy. During the Warring States period, Mohism was actively developed and practiced in many states, but fell out of favor when the legalist Qin dynasty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mohism
Mohism or Moism (, ) was an ancient Chinese philosophy of ethics and logic, rational thought, and science developed by the academic scholars who studied under the ancient Chinese philosopher Mozi (c. 470 BC – c. 391 BC), embodied in an eponymous book: the '' Mozi''. Among its major ethical tenets were altruism and a universal, unbiased respect and concern for all people regardless of relations or affiliations. The ideology also stressed the virtues of austerity and utilitarianism. It evolved at about the same time as Confucianism, Taoism and Legalism, and was one of the four main philosophic schools from around 770–221 BC (during the Spring and Autumn and Warring States periods). During that time, Mohism was seen as a major rival to Confucianism. Although its influence endured, Mohism almost disappeared as an independent school of thought in the wake of the cultural transformations of the Qin dynasty, after the 200s BC. Overview Mohism is best known for the concep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aulus Gellius
Aulus Gellius (c. 125after 180 AD) was a Roman author and grammarian, who was probably born and certainly brought up in Rome. He was educated in Athens, after which he returned to Rome. He is famous for his ''Attic Nights'', a commonplace book, or compilation of notes on grammar, philosophy, history, antiquarianism, and other subjects, preserving fragments of the works of many authors who might otherwise be unknown today. Name Medieval manuscripts of the ''Noctes Atticae'' commonly gave the author's name in the form of "Agellius", which is used by Priscian; Lactantius, Servius and Saint Augustine had "A. Gellius" instead. Scholars from the Renaissance onwards hotly debated which one of the two transmitted names is correct (the other one being presumably a corruption) before settling on the latter of the two in modern times. Life The only source for the life of Aulus Gellius is the details recorded in his writings. Internal evidence points to Gellius having been born betwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archytas
Archytas (; el, Ἀρχύτας; 435/410–360/350 BC) was an Ancient Greek philosopher, mathematician, music theorist, astronomer, statesman, and strategist. He was a scientist of the Pythagorean school and famous for being the reputed founder of mathematical mechanics, as well as a good friend of Plato. Life and work Archytas was born in Tarentum, Magna Graecia and was the son of Mnesagoras or Hadees. For a while, he was taught by Philolaus, and was a teacher of mathematics to Eudoxus of Cnidus. Archytas and Eudoxus' student was Menaechmus. As a Pythagorean, Archytas believed that only arithmetic, not geometry, could provide a basis for satisfactory proofs. Archytas is believed to be the founder of mathematical mechanics.: ''Vitae philosophorum'' As only described in the writings of Aulus Gellius five centuries after him, he was reputed to have designed and built the first artificial, self-propelled flying device, a bird-shaped model propelled by a jet of what was probabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King Mu Of Zhou
King Mu of Zhou (), personal name Ji Man, was the fifth king of the Zhou dynasty of China. The dates of his reign are 976–922 BC or 956–918 BC. Life King Mu came to the throne after his father King Zhao’s death during his tour to the South. King Mu was perhaps the most pivotal king of the Zhou dynasty, reigning nearly 55 years, from ca. 976 BC to ca. 922 BC. Mu was more ambitious than wise, yet he was able to introduce reforms that changed the nature of the Zhou government, transforming it from a hereditary system to one that was based on merit and knowledge of administrative skills. During Mu’s reign, the Zhou Dynasty was at its peak, and Mu tried to stamp out invaders in the western part of China and ultimately expand Zhou’s influence to the east. In the height of his passion for conquests, he led an immense army against the Quanrong, who inhabited the western part of China. His travels allowed him to contact many tribes and swayed them to either join under the Zhou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lie Zi
The ''Liezi'' () is a Taoist text attributed to Lie Yukou, a c. 5th century BC Hundred Schools of Thought philosopher. Although there were references to Lie's ''Liezi'' from the 3rd and 2nd centuries BC, a number of Chinese and Western scholars believe that the content of the current text was compiled around the 4th century CE by Zhang Zhan. Textual history The first two references to the ''Liezi'' book are from the Former Han Dynasty. The editor Liu Xiang notes he eliminated repetitions in ''Liezi'' and rearranged it into eight chapters (''pian'' ). The Book of Han bibliography section () says it has eight chapters () and concludes that since the '' Zhuangzi'' quotes Liezi, he must have lived before Zhuangzi. There is a three-century historical gap until the next evidence of the ''Liezi'': the Jin dynasty commentary by Zhang Zhan (fl. ca. 370 CE). Zhang's preface claims his ''Liezi'' copy was transmitted down from his grandfather. All received ''Liezi'' texts derive from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of China
The earliest known written records of the history of China date from as early as 1250 BC, from the Shang dynasty (c. 1600–1046 BC), during the reign of king Wu Ding. Ancient historical texts such as the '' Book of Documents'' (early chapters, 11th century BC), the '' Bamboo Annals'' (c. 296 BC) and the ''Records of the Grand Historian'' (c. 91 BC) describe a Xia dynasty before the Shang, but no writing is known from the period, and Shang writings do not indicate the existence of the Xia. The Shang ruled in the Yellow River valley, which is commonly held to be the cradle of Chinese civilization. However, Neolithic civilizations originated at various cultural centers along both the Yellow River and Yangtze River. These Yellow River and Yangtze civilizations arose millennia before the Shang. With thousands of years of continuous history, China is among the world's oldest civilizations and is regarded as one of the cradles of civilization. The Zhou dynasty (1046–256 BC) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
