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Wheelbarrow
A wheelbarrow is a small hand-propelled vehicle, usually with just one wheel, designed to be pushed and guided by a single person using two handles at the rear, or by a sail to push the ancient wheelbarrow by wind. The term "wheelbarrow" is made of two words: "wheel" and "barrow." "Barrow" is a derivation of the Old English "barew" which was a device used for carrying loads. The wheelbarrow is designed to distribute the weight of its load between the wheel and the operator, so enabling the convenient carriage of heavier and bulkier loads than would be possible were the weight carried entirely by the operator. As such it is a second-class lever. Traditional Chinese wheelbarrows, however, had a central wheel supporting the whole load. Use of wheelbarrows is common in the construction industry and in gardening. Typical capacity is approximately of material. A two-wheel type is more stable on level ground, while the almost universal one-wheel type has better maneuverability in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wooden Ox
The wooden ox (木牛流馬; ''lit.'' wooden ox and flowing horse) was a single-wheeled cart with two handles (i.e., a wheelbarrow) whose invention within China is sometimes credited to Zhuge Liang while he served Shu Han around the year 230 CE. The wooden ox purportedly allowed a single man to transport enough food to supply four others for up to three months, and this allowed for the feeding of large armies in the field. The wooden ox is pulled from the front, like an ox with a yoke A yoke is a wooden beam sometimes used between a pair of oxen or other animals to enable them to pull together on a load when working in pairs, as oxen usually do; some yokes are fitted to individual animals. There are several types of yoke, u ...; the flowing horse is pushed from behind. The basic device, however, appears to have been recorded centuries earlier in stone carvings dating from as early as 206 BCE. References External links * https://web.archive.org/web/20070929213048/http://140 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheel
A wheel is a circular component that is intended to rotate on an axle bearing. The wheel is one of the key components of the wheel and axle which is one of the six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating movement or transportation while supporting a load, or performing labor in machines. Wheels are also used for other purposes, such as a ship's wheel, steering wheel, potter's wheel, and flywheel. Common examples are found in transport applications. A wheel reduces friction by facilitating motion by rolling together with the use of axles. In order for wheels to rotate, a moment needs to be applied to the wheel about its axis, either by way of gravity or by the application of another external force or torque. Using the wheel, Sumerians invented a device that spins clay as a potter shapes it into the desired object. Terminology The English word '' wheel'' comes from the Old English word , from Proto-Germanic , f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lever
A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or '' fulcrum''. A lever is a rigid body capable of rotating on a point on itself. On the basis of the locations of fulcrum, load and effort, the lever is divided into three types. Also, leverage is mechanical advantage gained in a system. It is one of the six simple machines identified by Renaissance scientists. A lever amplifies an input force to provide a greater output force, which is said to provide leverage. The ratio of the output force to the input force is the mechanical advantage of the lever. As such, the lever is a mechanical advantage device, trading off force against movement. Etymology The word "lever" entered English around 1300 from Old French, in which the word was ''levier''. This sprang from the stem of the verb ''lever'', meaning "to raise". The verb, in turn, goes back to the Latin ''levare'', itself from the adjective ''levis'', meaning "light" (as in "not heavy") ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bao Xuan
Bao Xuan (, died 3 AD), courtesy name Zidu (), was a Han dynasty censor during the reign of Emperor Ai, known for his integrity and courage. He was exiled for offending the grand councilor Kong Guang (), and later died in prison for opposing Wang Mang (who usurped the throne in 9 AD). Bao Xuan's (already raided) tomb was discovered in May 2007 in Zhangzi County, Shanxi, where he spent the last years of his life. Early life Bao Xuan was from a poor family in Gaocheng (高城; roughly modern Yanshan County, Hebei). He studied Confucian classics under a wealthy scholar, who, recognizing Bao Xuan's outstanding diligence, betrothed his daughter Huan Shaojun () to Bao Xuan. Mr. Huan also provided a sumptuous dowry, but this made Bao Xuan uncomfortable. He said to his new bride: Huan Shaojun replied: Bao Xuan was ecstatic. The young couple returned the garments, jewelry and servants to Huan Shaojun's father, and dressed in coarse clothing they pushed together a wheelbarrow with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three Kingdoms
The Three Kingdoms () from 220 to 280 AD was the tripartite division of China among the dynastic states of Cao Wei, Shu Han, and Eastern Wu. The Three Kingdoms period was preceded by the Eastern Han dynasty and was followed by the Western Jin dynasty. The short-lived state of Yan on the Liaodong Peninsula, which lasted from 237 to 238, is sometimes considered as a "4th kingdom". Academically, the period of the Three Kingdoms refers to the period between the establishment of Cao Wei in 220 and the conquest of the Eastern Wu by the Western Jin in 280. The earlier, "unofficial" part of the period, from 184 to 220, was marked by chaotic infighting between warlords in various parts of China during the downfall of the Eastern Han dynasty. The middle part of the period, from 220 to 263, was marked by a more militarily stable arrangement between three rival states of Cao Wei, Shu Han, and Eastern Wu. The later part of the era was marked by the conquest of Shu by Wei in 263, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Han Dynasty
The Han dynasty (, ; ) was an Dynasties in Chinese history, imperial dynasty of China (202 BC – 9 AD, 25–220 AD), established by Emperor Gaozu of Han, Liu Bang (Emperor Gao) and ruled by the House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–207 BC) and a warring interregnum known as the ChuHan contention (206–202 BC), and it was succeeded by the Three Kingdoms period (220–280 AD). The dynasty was briefly interrupted by the Xin dynasty (9–23 AD) established by usurping regent Wang Mang, and is thus separated into two periods—the #Western Han, Western Han (202 BC – 9 AD) and the #Eastern Han, Eastern Han (25–220 AD). Spanning over four centuries, the Han dynasty is considered a golden age (metaphor), golden age in Chinese history, and it has influenced the identity of the History of China, Chinese civilization ever since. Modern China's majority ethnic group refers to themselves as the "Han Chinese, Han people", the Sinitic langu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhao Xi
Zhao Xi (; 4-80 CE), courtesy name Boyang (), was a politician who lived in the early Eastern Han Dynasty. Early life Zhao Xi was born in Wan, Nanyang Commandery (present-day Nanyang, Henan). At a young age, he was known for his integrity. When Zhao Xi was 15, his elder cousin, who had no son, was murdered. Zhao Xi harboured the thought of avenging his cousin, so he brought a group of people with him to confront his cousin's killer. The murderer was ill, and Zhao Xi felt that it was inhumane to kill him at that time, so he spared him. When the killer had recovered, he bound himself and came to plead with Zhao Xi. However, Zhao Xi refused to meet him and had him killed. Service under Gengshi Emperor In 9 CE, Wang Mang usurped the throne of the Western Han Dynasty and declared himself emperor of the Xin Dynasty. By 23 CE, several revolts had broken out throughout China due to Wang Mang's incompetent rule. Around the time, Liu Xuan, a descendant of the Han imperial clan, was procla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chimei
The Red Eyebrows () was one of the two major peasant rebellion movements against Wang Mang's short-lived Xin dynasty, the other being Lülin. It was so named because the rebels painted their eyebrows red. The rebellion, initially active in the modern Shandong and northern Jiangsu regions, eventually led to Wang Mang's downfall by draining his resources, allowing Liu Xuan (the Gengshi Emperor), leader of the Lülin, to overthrow Wang and temporarily reestablish an incarnation of the Han dynasty. The Red Eyebrows later overthrew the Gengshi Emperor and placed their own Han descendant puppet, teenage Emperor Liu Penzi, on the throne, who ruled briefly until the Red Eyebrows leaders' incompetence in ruling the territories under their control caused the people to rebel against them, forcing them to retreat and attempt to return home. When their path was blocked by the army of Liu Xiu's (Emperor Guangwu) newly established Eastern Han regime, they surrendered to him. Rise and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xin Dynasty
The Xin dynasty (; ), also known as Xin Mang () in Chinese historiography, was a short-lived Chinese imperial dynasty which lasted from 9 to 23 AD, established by the Han dynasty consort kin Wang Mang, who usurped the throne of the Emperor Ping of Han and the infant "crown prince" Liu Ying. The Xin dynasty ruled for over a decade before it was overthrown by rebels. After Wang's death, the Han dynasty was restored by Liu Xiu, a distant descendant of the Emperor Jing of Han; therefore, the Xin dynasty is often considered an interregnum period of the Han dynasty, dividing it into the Western Han (or "Former Han") and the Eastern Han (or "Later Han"). Etymology Chinese dynasties were typically named after the fief of their founders, and this reading is consistent with Wang Mang's pre-imperial position as Marquess of Xin. In 1950, C.B. Sargent suggested that the name of the dynasty should be read as meaning "new", which J. J. L. Duyvendak rejected out of hand. Chauncey S. Goo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wang Mang
Wang Mang () (c. 45 – 6 October 23 CE), courtesy name Jujun (), was the founder and the only emperor of the short-lived Chinese Xin dynasty. He was originally an official and consort kin of the Han dynasty and later seized the throne in 9 CE. The Han dynasty was restored after his overthrow, and his rule marked the separation between the Western Han dynasty (before Xin) and Eastern Han dynasty (after Xin). Traditional Chinese historiography viewed Wang as a tyrant and usurper, while more recently, some historians have portrayed him as a visionary and selfless social reformer. During his reign, he abolished slavery and initiated a land redistribution program. Though a learned Confucian scholar who sought to implement the harmonious society he saw in the classics, his efforts ended in chaos. Wang Mang's late reign saw large-scale peasant rebellions, most notably the revolt of the Red Eyebrows. In October 23 CE, the capital Chang'an was attacked and the imperial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outlaw
An outlaw, in its original and legal meaning, is a person declared as outside the protection of the law. In pre-modern societies, all legal protection was withdrawn from the criminal, so that anyone was legally empowered to persecute or kill them. Outlawry was thus one of the harshest penalties in the legal system. In early Germanic law, the death penalty is conspicuously absent, and outlawing is the most extreme punishment, presumably amounting to a death sentence in practice. The concept is known from Roman law, as the status of '' homo sacer'', and persisted throughout the Middle Ages. A secondary meaning of outlaw is a person who systematically avoids capture by evasion and violence to deter capture. These meanings are related and overlapping but not necessarily identical. A fugitive who is declared outside protection of law in one jurisdiction but who receives asylum and lives openly and obedient to local laws in another jurisdiction is an outlaw in the first meaning but n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
