|
1750s
File:1750s montage.png, 420x420px, From top left, clockwise: The Treaty of Madrid amends the pre-existing Treaty of Tordesillas (1494). Signed in 1750, this Spanish-Portuguese agreement, enabled Portugal to claim more holdings in what is now Brazil; Dzungar Khanate is captured by Qing forces in 1755, ultimately transferring Xinjiang into the hands of Han Chinese power – a legacy that continues to this day in modern-day China; A destructive earthquake and tsunami ravages the city of Lisbon in 1755, strongly influencing the studies of engineering, as well as philosophical thoughts on the Western Age of Enlightenment; Britain's victory during the Battle of Quiberon Bay signalled the rise of the British Navy's power, as it heightens its ranks of becoming the world's foremost naval power, and a dominant global entity for the next two centuries; Halley's Comet appears accurately from scientific projections for the first time in 1759; Artificial refrigeration is invented and first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French And Indian War
The French and Indian War (1754–1763) was a theater of the Seven Years' War, which pitted the North American colonies of the British Empire against those of the French, each side being supported by various Native American tribes. At the start of the war, the French colonies had a population of roughly 60,000 settlers, compared with 2 million in the British colonies. The outnumbered French particularly depended on their native allies. Two years into the French and Indian War, in 1756, Great Britain declared war on France, beginning the worldwide Seven Years' War. Many view the French and Indian War as being merely the American theater of this conflict; however, in the United States the French and Indian War is viewed as a singular conflict which was not associated with any European war. French Canadians call it the ('War of the Conquest').: 1756–1763 The British colonists were supported at various times by the Iroquois, Catawba, and Cherokee tribes, and the French ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benjamin Franklin
Benjamin Franklin ( April 17, 1790) was an American polymath who was active as a writer, scientist, inventor An invention is a unique or novel device, method, composition, idea or process. An invention may be an improvement upon a machine, product, or process for increasing efficiency or lowering cost. It may also be an entirely new concept. If an ..., Statesman (politician), statesman, diplomat, printer (publishing), printer, publisher, and Political philosophy, political philosopher.#britannica, Encyclopædia Britannica, Wood, 2021 Among the leading intellectuals of his time, Franklin was one of the Founding Fathers of the United States, Founding Fathers of the United States, a Committee of Five, drafter and signer of the United States Declaration of Independence, and the first United States Postmaster General. As a scientist, he was a major figure in the American Enlightenment and the history of physics for his studies of electricity, and for charting and naming ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Age Of Enlightenment
The Age of Enlightenment or the Enlightenment; german: Aufklärung, "Enlightenment"; it, L'Illuminismo, "Enlightenment"; pl, Oświecenie, "Enlightenment"; pt, Iluminismo, "Enlightenment"; es, La Ilustración, "Enlightenment" was an intellectual and philosophical movement that dominated Europe in the 17th and 18th centuries with global influences and effects. The Enlightenment included a range of ideas centered on the value of human happiness, the pursuit of knowledge obtained by means of reason and the evidence of the senses, and ideals such as liberty, progress, toleration, fraternity, and constitutional government. The Enlightenment was preceded by the Scientific Revolution and the work of Francis Bacon, John Locke, and others. Some date the beginning of the Enlightenment to the publication of René Descartes' '' Discourse on the Method'' in 1637, featuring his famous dictum, '' Cogito, ergo sum'' ("I think, therefore I am"). Others cite the publication of Isaa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kite Experiment
The kite experiment is a scientific experiment in which a kite with a pointed, conductive wire attached to its apex is flown near thunder clouds to collect electricity from the air and conduct it down the wet kite string to the ground. It was proposed and may have been conducted by Benjamin Franklin with the assistance of his son William Franklin. The experiment's purpose was to uncover the unknown facts about the nature of lightning and electricity, and with further experiments on the ground, to demonstrate that lightning and electricity were the result of the same phenomenon. Background Speculations of Jean-Antoine Nollet had led to the issue of the electrical nature of lightning being posed as a prize question at Bordeaux in 1749. In 1750, it was the subject of public discussion in France, with a dissertation of Denis Barberet receiving a prize in Bordeaux; Barberet proposed a cause in line with the triboelectric effect. The same year, Franklin reversed his previous skeptic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qing Dynasty
The Qing dynasty ( ), officially the Great Qing,, was a Manchu people, Manchu-led Dynasties in Chinese history, imperial dynasty of China and the last orthodox dynasty in Chinese history. It emerged from the Later Jin (1616–1636), Later Jin dynasty founded by the Jianzhou Jurchens, a Tungusic peoples, Tungusic-speaking ethnic group who Jurchen unification, unified other Jurchen tribes to form a new "Manchu" ethnic identity. The dynasty was officially proclaimed in 1636 in Manchuria (modern-day Northeast China and Outer Manchuria). It seized control of Beijing in 1644, then later expanded its rule over the whole of China proper and Taiwan under Qing rule, Taiwan, and finally Qing dynasty in Inner Asia, expanded into Inner Asia. The dynasty lasted until 1912 when it was overthrown in the 1911 Revolution, Xinhai Revolution. In orthodox Chinese historiography, the Qing dynasty was preceded by the Ming dynasty and succeeded by the Republic of China (1912–1949), Republic o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kite Experiment
The kite experiment is a scientific experiment in which a kite with a pointed, conductive wire attached to its apex is flown near thunder clouds to collect electricity from the air and conduct it down the wet kite string to the ground. It was proposed and may have been conducted by Benjamin Franklin with the assistance of his son William Franklin. The experiment's purpose was to uncover the unknown facts about the nature of lightning and electricity, and with further experiments on the ground, to demonstrate that lightning and electricity were the result of the same phenomenon. Background Speculations of Jean-Antoine Nollet had led to the issue of the electrical nature of lightning being posed as a prize question at Bordeaux in 1749. In 1750, it was the subject of public discussion in France, with a dissertation of Denis Barberet receiving a prize in Bordeaux; Barberet proposed a cause in line with the triboelectric effect. The same year, Franklin reversed his previous skeptic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Treaty Of Dunce (13 January 1750)
A treaty is a formal, legally binding written agreement between actors in international law. It is usually made by and between sovereign states, but can include international organizations, individuals, business entities, and other legal persons. A treaty may also be known as an international agreement, protocol, covenant, convention, pact, or exchange of letters, among other terms. However, only documents that are legally binding on the parties are considered treaties under international law. Treaties vary on the basis of obligations (the extent to which states are bound to the rules), precision (the extent to which the rules are unambiguous), and delegation (the extent to which third parties have authority to interpret, apply and make rules). Treaties are among the earliest manifestations of international relations, with the first known example being a border agreement between the Sumerian city-states of Lagash and Umma around 3100 BC. International agreements were used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iroquois
The Iroquois ( or ), officially the Haudenosaunee ( meaning "people of the longhouse"), are an Iroquoian-speaking confederacy of First Nations peoples in northeast North America/ Turtle Island. They were known during the colonial years to the French as the Iroquois League, and later as the Iroquois Confederacy. The English called them the Five Nations, comprising the Mohawk, Oneida, Onondaga, Cayuga, and Seneca (listed geographically from east to west). After 1722, the Iroquoian-speaking Tuscarora people from the southeast were accepted into the confederacy, which became known as the Six Nations. The Confederacy came about as a result of the Great Law of Peace, said to have been composed by Deganawidah the Great Peacemaker, Hiawatha, and Jigonsaseh the Mother of Nations. For nearly 200 years, the Six Nations/Haudenosaunee Confederacy were a powerful factor in North American colonial policy, with some scholars arguing for the concept of the Middle Ground, in that Eu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cherokee
The Cherokee (; chr, ᎠᏂᏴᏫᏯᎢ, translit=Aniyvwiyaʔi or Anigiduwagi, or chr, ᏣᎳᎩ, links=no, translit=Tsalagi) are one of the indigenous peoples of the Southeastern Woodlands of the United States. Prior to the 18th century, they were concentrated in their homelands, in towns along river valleys of what is now southwestern North Carolina, southeastern Tennessee, edges of western South Carolina, northern Georgia (U.S. state), Georgia, and northeastern Alabama. The Cherokee language is part of the Iroquoian languages, Iroquoian language group. In the 19th century, James Mooney, an early American Ethnography, ethnographer, recorded one oral tradition that told of the Tribe (Native American), tribe having migrated south in ancient times from the Great Lakes region, where other Iroquoian Peoples, Iroquoian peoples have been based. However, anthropologist Thomas R. Whyte, writing in 2007, dated the split among the peoples as occurring earlier. He believes that the ori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mi'kmaq
The Mi'kmaq (also ''Mi'gmaq'', ''Lnu'', ''Miꞌkmaw'' or ''Miꞌgmaw''; ; ) are a First Nations people of the Northeastern Woodlands, indigenous to the areas of Canada's Atlantic Provinces and the Gaspé Peninsula of Quebec as well as the northeastern region of Maine. The traditional national territory of the Mi'kmaq is named Miꞌkmaꞌki (or Miꞌgmaꞌgi). There are 170,000 Mi'kmaq people in the region, (including 18,044 members in the recently formed Qalipu First Nation in Newfoundland.) Nearly 11,000 members speak Miꞌkmaq, an Eastern Algonquian language. Once written in Miꞌkmaw hieroglyphic writing, it is now written using most letters of the Latin alphabet. The Mi'kmaq, Maliseet, and Pasamaquoddy nations signed a series of treaties known as the Covenant Chain of Peace and Friendship Treaties with the British Crown throughout the eighteenth century; the first was signed in 1725, and the last in 1779. The Miꞌkmaq maintain that they did not cede or give up their l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lightning Rod
A lightning rod or lightning conductor (British English) is a metal rod mounted on a structure and intended to protect the structure from a lightning strike. If lightning hits the structure, it will preferentially strike the rod and be conducted to ground through a wire, instead of passing through the structure, where it could start a fire or cause electrocution. Lightning rods are also called finials, air terminals, or strike termination devices. In a lightning protection system, a lightning rod is a single component of the system. The lightning rod requires a connection to earth to perform its protective function. Lightning rods come in many different forms, including hollow, solid, pointed, rounded, flat strips, or even bristle brush-like. The main attribute common to all lightning rods is that they are all made of conductive materials, such as copper and aluminum. Copper and its alloys are the most common materials used in lightning protection. History The principle of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electricity
Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others. The presence of an electric charge, which can be either positive or negative, produces an electric field. The movement of electric charges is an electric current and produces a magnetic field. When a charge is placed in a location with a non-zero electric field, a force will act on it. The magnitude of this force is given by Coulomb's law. If the charge moves, the electric field would be doing work on the electric charge. Thus we can speak of electric potential at a certain point in space, which is equal to the work done by an external agent in carrying a u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
