Information about Technological Progress
- This article is about the topic of technology in history. For the publication, see History of Technology (magazine).
The history of technology is the history of the invention of tools and techniques for doing practical things. Its modern history is intimately related with the history of science, as the discovery of new background knowledge has enabled us to create new things, and conversely, many scientific endeavors have become possible through technologies which assist humans to travel to places we could not otherwise go, and probe the nature of the universe in more detail than our natural senses allow.
Technological artifacts are products of an economy, a force for economic growth, and a large part of everyday life. Technological innovations affect, and are affected by, a society's cultural traditions. They also are a means to develop and project military power.
By period and geography
Early technology
Agriculture preceded writing in the history of technology.
- Olduvai stone technology (Olduwan) 2.5 million years ago (scrapers; to butcher dead animals)
- Acheulean stone technology 1.6 million years ago (hand axe)
- Fire used since the Paleolithic, possibly by Homo erectus as early as 1.5 Million years ago
- Clothing possibly 100,000 years ago.
- Stone tools, used by Homo floresiensis, possibly 100,000 years ago.
- Domestication of Animals, ca. 15,000 BC
- Pottery ca. 11th millennium BC
- Bow, sling ca. 9th millennium BC
- Microliths ca. 9th millennium BC
- Copper ca. 8000 BC
- Agriculture and Plough ca. 8000 BC
- Wheel ca. 4000 BC
- Gnomon ca. 4000 BC
- Writing systems ca. 3500 BC
- Bronze ca. 3300 BC
- Salt
- Chariot ca. 2000 BC
- Iron ca. 1500 BC
- Sundial ca. 800 BC
- Glass ca. 500 BC
- Catapult ca. 400 BC
- Horseshoe ca. 300 BC
- Stirrup first few centuries AD
Stone Age
During the Stone Age, all humans were hunter-gatherers, a lifestyle which involved limited use of tools and few if any permanent settlements. The first major technologies, then, were tied to survival, hunting, and food preparation in this environment. Fire, stone tools and weapons, and clothing were technological developments of major importance during this period. Stone Age cultures developed music, and engaged in organized warfare. A subset of Stone Age people developed ocean-worthy outrigger ship technology, leading to an eastward migration across the Malay archipelago, across the Indian ocean to Madagascar and also across the Pacific Ocean, which required knowledge of the ocean currents, weather patterns, sailing, celestial navigation, and star maps. The early Stone Age is described as Epipaleolithic or Mesolithic. The former is generally used to describe the early Stone Age in areas with limited glacial impact. The later Stone Age, during which the rudiments of agricultural technology were developed, is called the Neolithic period.Although Paleolithic cultures left no written records, the shift from nomadic life to settlement and agriculture can be inferred from a range of archaeological evidence. Such evidence includes ancient tools[1], cave paintings, and other prehistoric art, such as the Venus of Willendorf. Human remains also provide direct evidence, both through the examination of bones, and the study of mummies. Though concrete evidence is limited, scientists and historians have been able to form significant inferences about the lifestyle and culture of various prehistoric peoples, and the role technology played in their lives.
Copper and Bronze Age
The Stone Age developed into the Bronze Age after the Neolithic Revolution. The Neolithic Revolution involved radical changes in agricultural technology which included development of agriculture, animal domestication, and the adoption of permanent settlements. These combined factors made possible the development of metal smelting, with copper and later bronze, being the metals of choice. This technological trend began in the Fertile Crescent, and spread outward over time. It should be noted that these developments were not, and still are not, universal. The Three-age system does not accurately describe the technology history of groups outside of Eurasia, and does not apply at all in the case of some isolated populations, such as the Spinifex People, the Sentinelese, and various Amazonian tribes, which still make use of Stone Age technology, and have not developed agricultural or metallurgical technology... this is so cool lolIron Age
The Iron Age involved the adoption of iron smelting technology. It generally replaced bronze, and made it possible to produce tools which were stronger and cheaper to make than bronze equivalents. In many Eurasian cultures, the Iron Age was the last major step before the development of written language, though again this was not universally the case.Ancient civilizations
Egypt
For later technologies in Ptolemaic Egypt, Roman Egypt, and Arab Egypt, see Ancient Greek technology and innovation, Roman technology and Inventions in the Muslim world respectively.
India
Ancient India was also at the forefront of seafaring technology - a panel found at Mohenjodaro, depicts a sailing craft. Ship construction is vividly described in the Yukti Kalpa Taru, an ancient Indian text on Shipbuilding. The Yukti Kalpa Taru, compiled by Bhoja Narapati is concerned with shipbuilding. (The Yukti Kalpa Taru had been translated and published by Prof. Aufrecht in his 'Catalogue of Sanskrit Manuscripts').
Indian construction and architecture, called 'Vaastu Shastra', suggests a thorough understanding or materials engineering, hydrology, and sanitation. Ancient Indian culture was also pioneering in its use of vegetable dyes, cultivating plants including indigo and cinnabar. Many of the dyes were used in art and sculpture. The use of perfumes demonstrates some knowledge of chemistry, particularly distillation and purification processes.
China
Chinese armillary sphere
The solid-fuel rocket was invented in China about 1150, nearly 200 years after the invention of black powder (which acted as the rocket's fuel), and 500 years after the invention of the match. At the same time that the age of exploration was occurring in the West, the Chinese emperors of the Ming Dynasty also sent ships, some reaching Africa. But the enterprises were not further funded, halting further exploration and development. When Ferdinand Magellan's ships reached Brunei in 1521, they found a wealthy city that had been fortified by Chinese engineers, and protected by a breakwater. Antonio Pigafetta noted that much of the technology of Brunei was equal to Western technology of the time. Also, there were more cannons in Brunei than on Magellan's ships, and the Chinese merchants to the Brunei court had sold them spectacles and porcelain, which were rarities in Europe. Chinese scientific understanding, however, was less developed than that in the West.
Tribal Europe
By 1000 BC - 500 BC, the Germanic tribes had a Bronze Age civilization, while the Celts were in the Iron Age by the time of the Hallstatt culture. Their cultures collided with the military and agricultural practices of the Romans, leading the Europeans to appropriate both social and technological processes of the Romans.Greek and Hellenistic
Apart from Hero of Alexandria's steam aeolipile, Hellenistic technicians were the first to invent watermills and windwheels, making them global pioneers in three of the four known means of non-human propulsion prior to the Industrial Revolution (the fourth being sails), although only water power became extensively used in antiquity.
Inca
The engineering skills of the Inca were great, even by today's standards. An example is the use of pieces weighing in upwards of one ton in their stonework (e.g., Machu Picchu in Peru), placed together so that not even a blade can fit in-between the cracks. The villages used irrigation canals and drainage systems, making agriculture very efficient. While some claim that the Incas were the first inventors of hydroponics, their agricultural technology was still soil based, if advanced. This technology, including tiered farm plots, allowed significant yields from steeply sloped or otherwise unproductive land.Maya
Though the Maya civilization had no metallurgy or wheel technology, they developed complex writing and astrological systems, and created sculptural works in stone and flint. Like the Inca, the Maya also had command of fairly advanced agricultural and construction technology. Throughout this time period many of this construction, was made by only woman, as men of the Maya civilization, believed females were responsible for the creation of new things.Medieval and Modern technologies
Muslim Agricultural Revolution
- Main articles: Inventions in the Muslim world, Muslim Agricultural Revolution, and Islamic Golden Age: Industrial growth
- Further information: Timeline of science and technology in the Islamic world
From the 8th century, the medieval Islamic world witnessed a fundamental transformation in agriculture known as the "Muslim Agricultural Revolution", "Arab Agricultural Revolution", or "Green Revolution".[] Due to the global economy established by Muslim traders across the Old World during the "Afro-Asiatic age of discovery" or "Pax Islamica", this enabled the diffusion of many crops, plants and farming techniques between different parts of the Islamic world, as well as the adaptation of crops, plants and techniques from beyond the Islamic world, distributed throughout Islamic lands which normally would not be able to grow these crops.[] Some have referred to the diffusion of numerous crops during this period as the "Globalisation of Crops",[1] which, along with an increased mechanization of agriculture, led to major changes in economy, population distribution, vegetation cover,[2] agricultural production and income, population levels, urban growth, the distribution of the labour force, linked industries, cooking and diet, clothing, and numerous other aspects of life in the Islamic world.[0]
Muslim engineers in the Islamic world were responsible for numerous innovative industrial uses of hydropower, the first industrial uses of tidal power, wind power, steam power, and petroleum, and the earliest large factory complexes (tiraz in Arabic).[4] The industrial uses of watermills were in widespread use since the 8th century. A variety of industrial mills were first invented in the Islamic world, including fulling mills, gristmills, hullers, paper mills, sawmills, shipmills, stamp mills, steel mills, sugar mills, tide mills, and windmills. By the 11th century, every province throughout the Islamic world had these industrial mills in operation, from al-Andalus and North Africa to the Middle East and Central Asia.[5] Muslim engineers also invented crankshafts and water turbines, first employed gears in mills and water-raising machines, and pioneered the use of dams as a source of water power, used to provide additional power to watermills and water-raising machines.[5] Such advances made it possible for many industrial tasks that were previously driven by manual labour in ancient times to be mechanized and driven by machinery instead in the medieval Islamic world. The transfer of these technologies to medieval Europe later laid the foundations for the Industrial Revolution in 18th century Europe.[6]
A significant number of inventions were produced by Muslim scientists and engineers during this time, including inventors such as Abbas Ibn Firnas, Taqi al-Din, and especially al-Jazari, who is considered the "father of robotics"[6] and "father of modern day engineering".[7] Some of the inventions from the Islamic Golden Age include the camera obscura, coffee, hang glider, hard soap, shampoo, pure distillation, liquefaction, crystallisation, purification, oxidisation, evaporation, filtration, distilled alcohol, uric acid, nitric acid, alembic, crankshaft, valve, reciprocating suction piston pump, mechanical clocks driven by water and weights, programmable humanoid robot, combination lock, quilting, pointed arch, scalpel, bone saw, forceps, surgical catgut, windmill, inoculation, smallpox vaccine, fountain pen, cryptanalysis, frequency analysis, three-course meal, stained glass and quartz glass, Persian carpet, modern cheque, celestial globe, explosive rockets and incendiary devices, torpedo, and royal pleasure gardens.[6]
Medieval Europe
Medieval counterweight trebuchet (reconstruction)
European technology in the Middle Ages may be best described as a symbiosis of traditio et innovatio. While medieval technology has been long depicted as a step backwards in the evolution of Western technology, sometimes willfully so by modern authors intent on denouncing the church as antagonistic to scientific progress (see e.g. flat earth myth), a generation of medievalists around the American historian of science Lynn White stressed from the 1940s onwards the innovative character of many medieval techniques. Genuine medieval contributions include for example mechanical clocks, spectacles and vertical windmills. Medieval ingenuity was also displayed in the invention of seemingly inconspicuous items like the watermark or the functional button. In navigation, the foundation to the subsequent age of exploration was laid by the introduction of pintle-and-gudgeon rudders, lateen sails, the dry compass and the astrolab.
Significant advances were also made in military technology with the development of plate armour, steel crossbows, counterweight trebuchets and cannon. Perhaps best known are the Middle Ages for their architectural heritage: While the invention of the rib vault and pointed arch gave rise to the high rising Gothic style, the ubiquitous medieval fortifications gave the era the almost proverbial title of the 'age of castles'.
Renaissance
Age of Exploration
The sailing ship (Nau or Carrack) enabled the Age of Exploration with the European colonization of the Americas, epitomized by Francis Bacon's The New Atlantis. European powers rediscovered the idea of the Civil code, lost since the time of the Ancient Greeks.Industrial Revolution
19th century
The 19th century saw astonishing developments in transportation, construction, and communication technologies originiating in Europe. The Steam Engine which had existed since the early 18th century, was practically applied to both steamboat and railway transportation. Telegraphy also developed into a practical technology in the 19th century. Other technologies were explored for the first time, including the Incandescent light bulb. The Portsmouth Block Mills was where manufacture of ships' pulley blocks by all-metal machines first took place and instigated the age of mass production. Machine tools used by engineers to manufacture other machines began in the first decade of the century, notably by Richard Roberts and Joseph Whitworth. Steamships were eventually completely iron-clad, and played a role in the opening of Japan and China to trade with the West. Mechanical computing was envisioned by Charles Babbage but did not come to fruition. The Second Industrial Revolution at the end of the 19th century saw rapid development of chemical, electrical, petroleum, and steel technologies connected with highly structured technology research.20th century
20th Century technology developed rapidly. Communication technology, transportation technology, broad teaching and implementation of Scientific method, and increased research spending all contributed to the advancement of modern science and technology. Due to the scientific gains directly tied to military research and development, technologies including electronic computing might have developed as rapidly as they did in part due to war. Radio, Radar, and early sound recording were key technologies which paved the way for the Telephone, Fax machine, and Magnetic storage of data. Energy and engine technology improvements were also vast, including Nuclear power, developed after the Manhattan project. Transport by rocketry: most work occurred in the U.S. (Goddard), Russia (Tsiolkovsky) and Germany (Oberth). Making use of computers and advanced research labs, modern scientists have Recombinant DNA.21st century
Despite the fact we have just entered into the 21st century, technology is being developed even more rapidly, marked progress in almost all fields of science and technology has led to massive improvements to the technology we currently possess, the rate of development in computers being only one example at which the speed of progress continues forward, leading to the speculation of a technological singularity occurring within this century. Current ongoing developments include research into the scramjet, nanotechnology, bioengineering, nuclear fusion, new developments in armor, advanced materials and a plethora of other fields, leading to speculations among some circles of the development of devices such as powered armor in the near future.Measuring technological progress
Many sociologists and anthropologists have created social theories dealing with social and cultural evolution. Some, like Lewis H. Morgan, Leslie White, and Gerhard Lenski, declare technological progress to be the primary factor driving the development of human civilization. Morgan's concept of three major stages of social evolution (savagery, barbarism, and civilization) can be divided by technological milestones, like fire, the bow, and pottery in the savage era, domestication of animals, agriculture, and metalworking in the barbarian era and the alphabet and writing in the civilization era.Instead of specific inventions, White decided that the measure by which to judge the evolution of culture was energy. For White "the primary function of culture" is to "harness and control energy." White differentiates between five stages of human development: In the first, people use energy of their own muscles. In the second, they use energy of domesticated animals. In the third, they use the energy of plants (agricultural revolution). In the fourth, they learn to use the energy of natural resources: coal, oil, gas. In the fifth, they harness nuclear energy. White introduced a formula P=E*T, where E is a measure of energy consumed, and T is the measure of efficiency of technical factors utilizing the energy. In his own words, "culture evolves as the amount of energy harnessed per capita per year is increased, or as the efficiency of the instrumental means of putting the energy to work is increased". Russian astronomer, Nikolai Kardashev, extrapolated his theory creating the Kardashev scale, which categorizes the energy use of advanced civilizations.
Lenski takes a more modern approach and focuses on information. The more information and knowledge (especially allowing the shaping of natural environment) a given society has, the more advanced it is. He identifies four stages of human development, based on advances in the history of communication. In the first stage, information is passed by genes. In the second, when humans gain sentience, they can learn and pass information through by experience. In the third, the humans start using signs and develop logic. In the fourth, they can create symbols, develop language and writing. Advancements in the technology of communication translates into advancements in the economic system and political system, distribution of wealth, social inequality and other spheres of social life. He also differentiates societies based on their level of technology, communication and economy: 1) hunters and gatherers, 2) simple agricultural, 3) advanced agricultural, 4) industrial 5) special (like fishing societies).
Finally, from the late 1970s sociologists and anthropologists like Alvin Toffler (author of Future Shock), Daniel Bell and John Naisbitt have approached the theories of post-industrial societies, arguing that the current era of industrial society is coming to an end, and services and information are becoming more important than industry and goods. Some of the more extreme visions of the post-industrial society, especially in fiction, are strikingly similar to the visions of near and post-Singularity societies.
By type of technology
History of biotechnology
To be incorporated into main article:
- Timeline of agriculture and food technology
- Hunter-gatherer
- Agriculture
- Food science
- Genetically modified food
- History of agricultural science
- History of gardening
- Biotechnology (timeline, etc.)
- History of sushi
- History of tea in China
History of civil engineering
To be incorporated:
- Civil engineering
- Architecture and building construction
- Bridges, harbors, tunnels, dams
- Surveying, instruments and maps, cartography, urban engineering, water supply and sewerage
History of communication
To be incorporated:
- Communications
- Writing systems
- Telecommunications
- History of mobile phones
- History of animation
- History of broadcasting
- History of radar
- History of radio
- Printing
- Cinema
- Radio
- Television
- Internet
History of computing
History of consumer technology
- Timeline of lighting technology
- History of textiles and clothing
- History of materials science
- Family and consumer science
- History of knitting
- History of lensmaking
- History of the chair
- History of the umbrella
- Manufacturing
History of electrical engineering
To be incorporated:
History of energy technology
To be incorporated:
- Energy (History, Use by humans, See also)
- History of coal mining
- History of perpetual motion machines
- Timeline of steam power
- Timeline of alcohol fuel
- Timeline of nuclear fusion
History of materials science
To be incorporated:
- Timeline of materials technology
- Metallurgy
- Materials and processing
History of measurement
History of medicine
History of military technology
To be incorporated into main article:
- * Military history#Technological Evolution
- - articles on history of specific technologies
History of nuclear technology
History of science and technology
- History of telescopes
- Timeline of telescopes, observatories, and observing technology
- Timeline of microscope technology
- Timeline of particle physics technology
- Timeline of low-temperature technology
- Timeline of temperature and pressure measurement technology
History of transport technology
To be incorporated into main article:
- Timeline of motor and engine technology
- Timeline of photography technology
- Timeline of rocket and missile technology
- Timeline of communication technology
See also
| History of technology |
By period and location:
|
Related history
Related disciplines
- Technical education
- Philosophy of technology
- History of science and technology (field of study)
- History of ideas (field of study)
- Technology
- Engineering
- Mechanical engineering
Related subjects
Future of science and technology (speculative)
People
- List of engineers and list of inventors
- Biography of inventors and explorers
- Technical societies
- Technocracy
- Technology and society
Historiography of science and technology
Historians of science and technology
- Johann Beckmann
- I. Bernard Cohen
- Ruth Schwartz Cowan
- John L. Heilbron
- Thomas P. Hughes
- Daniel Kevles
- Thomas Kuhn
- Dylan Stiddle
- Lewis Mumford
- Joseph Needham
- Abraham Pais
- Richard Bissell Prosser
- George Sarton
- Charles Singer
- W. Patrick McCray
Journals and periodicals in the history of science and technology
- History of Technology
- ICON
- Technology and Culture
- Transactions of the Newcomen Society
Research institutes
See also
References
1. ^ The Globalisation of Crops, FSTC
2. ^ Andrew M. Watson (1983), Agricultural Innovation in the Early Islamic World, Cambridge University Press, ISBN 052124711X.
3. ^ Andrew M. Watson (1974), "The Arab Agricultural Revolution and Its Diffusion, 700-1100", The Journal of Economic History 34 (1), p. 8-35.
4. ^ Maya Shatzmiller, p. 36.
5. ^ Adam Robert Lucas (2005), "Industrial Milling in the Ancient and Medieval Worlds: A Survey of the Evidence for an Industrial Revolution in Medieval Europe", Technology and Culture 46 (1), p. 1-30 [10].
6. ^ Adam Robert Lucas (2005), "Industrial Milling in the Ancient and Medieval Worlds: A Survey of the Evidence for an Industrial Revolution in Medieval Europe", Technology and Culture 46 (1), p. 1-30.
7. ^ 1000 Years of Knowledge Rediscovered at Ibn Battuta Mall, MTE Studios.
8. ^ Paul Vallely, How Islamic Inventors Changed the World, The Independent, 11 March 2006.
2. ^ Andrew M. Watson (1983), Agricultural Innovation in the Early Islamic World, Cambridge University Press, ISBN 052124711X.
3. ^ Andrew M. Watson (1974), "The Arab Agricultural Revolution and Its Diffusion, 700-1100", The Journal of Economic History 34 (1), p. 8-35.
4. ^ Maya Shatzmiller, p. 36.
5. ^ Adam Robert Lucas (2005), "Industrial Milling in the Ancient and Medieval Worlds: A Survey of the Evidence for an Industrial Revolution in Medieval Europe", Technology and Culture 46 (1), p. 1-30 [10].
6. ^ Adam Robert Lucas (2005), "Industrial Milling in the Ancient and Medieval Worlds: A Survey of the Evidence for an Industrial Revolution in Medieval Europe", Technology and Culture 46 (1), p. 1-30.
7. ^ 1000 Years of Knowledge Rediscovered at Ibn Battuta Mall, MTE Studios.
8. ^ Paul Vallely, How Islamic Inventors Changed the World, The Independent, 11 March 2006.
- Singer, C., Holmyard, E.J., Hall, A. R and Williams, T. I. (eds.), (1954-59 and 1978) A History of Technology,, 7 vols., Oxford, Clarendon Press,. (Vols 6 and 7, 1978, ed. T. I. Williams)
- Kranzberg, Melvin and Pursell, Carroll W. Jr., eds. (1967)Technology in Western Civilization: Technology in the Twentieth Century New York: Oxford University Press.
- Pacey, Arnold, (1974, 2ed 1994),The Maze of Ingenuity The MIT Press, Cambridge, Mass, 1974, [2ed 1994, cited here]
- Derry, Thomas Kingston and Williams, Trevor I., (1993) A Short History of Technology: From the Earliest Times to A.D. 1900. New York: Dover Publications.
- Brush, S. G. (1988). The History of Modern Science: A Guide to the Second Scientific Revolution 1800-1950. Ames: Iowa State University Press.
- Bunch, Bryan and Hellemans, Alexander, (1993) The Timetables of Technology, New York, Simon and Schuster.
- Greenwood, Jeremy (1997) The Third Industrial Revolution: Technology, Productivity and Income Inequality AEI Press.
- Landa, Manuel de, War in the Age of Intelligent Machines, 2001.
- Olby, R. C. et al., eds. (1996). Companion to the History of Modern Science,. New York, Routledge.
- Kranzberg, Melvin and Pursell, Carroll W. Jr., eds. (1967)Technology in Western Civilization: Technology in the Twentieth Century New York: Oxford University Press.
External links
- http://www.fptt-pftt.gc.ca/success/century/1900_e.shtml This is a very good site for looking at Technology in the 1900s (20th century)
- MIT 6.933J - The Structure of Engineering Revolutions. From MIT OpenCourseWare, course materials (graduate level) for a course on the history of technology through a Thomas Kuhn-ian lens.
- Concept of Civilization Events. From Jaroslaw Kessler, a chronology of "civilizing events".
- Ancient and Medieval City Technology
History of Technology is an annual periodical devoted to publishing papers on all aspects of the field of technology. It began publication in Britain in 1976 and, as of 2004, has reached volume 24. The papers are authoritative and peer-reviewed.
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For the musical form, see .
An invention is an object, process, or technique which displays an element of novelty. An invention may sometimes be based on earlier developments, collaborations or ideas, and the process of invention requires at least
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tool or device is a piece of equipment which typically provides a mechanical advantage in accomplishing a physical task, or provides an ability that is not naturally available to the user of a tool. The most basic tools are simple machines.
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history of science began with the publication of William Whewell's History of the Inductive Sciences (first published in 1837). A more formal study of the history of science as an independent discipline was launched by George Sarton's publications,
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Economic systems
Ideologies and Theories
Primitive communism
Capitalist economy
Corporate economy
Fascist economy
Laissez-faire
Mercantilism
Natural economy
Social market economy
Socialist economy
Communist economy
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Ideologies and Theories
Primitive communism
Capitalist economy
Corporate economy
Fascist economy
Laissez-faire
Mercantilism
Natural economy
Social market economy
Socialist economy
Communist economy
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Olduvai Gorge or Oldupai Gorge is commonly referred to as "The Cradle of Mankind." It is a steep-sided ravine in the Great Rift Valley, which stretches along eastern Africa. Olduvai is in the eastern Serengeti Plains in northern Tanzania and is about 30 miles long.
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Oldowan (earlier spelled Olduwan or sometimes Oldawan) is an anthropological designation for an industry of stone tools used by prehistoric homininans of the Lower Paleolithic. The Oldowan is the very first stone tool assemblage in prehistory.
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Acheulean (also spelt Acheulian, pronounced /ætʃuːlɪən/ or /ætʃuːleɪən
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Fire is an oxidation process that releases energy in varying intensities in the form of light (with wavelengths also outside the visual spectrum) and heat and often creates smoke. It is commonly used to describe either a fuel in a state of combustion (e.g.
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Paleolithic is a prehistoric era distinguished by the development of stone tools. It covers virtually all of humanity's time on Earth, extending from 2.5 million years ago, with the introduction of stone tools by hominids such as Homo habilis
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H. erectus
Binomial name
†Homo erectus
(Dubois, 1892)
Synonyms
† Pithecanthropus erectus
† Sinanthropus pekinensis
† Javanthropus soloensis
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Binomial name
†Homo erectus
(Dubois, 1892)
Synonyms
† Pithecanthropus erectus
† Sinanthropus pekinensis
† Javanthropus soloensis
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To help compare orders of magnitude of different times this page lists times between 320 000 years and 3 200 000 years (1013 seconds and 1014 seconds) See also times of other orders of magnitude.
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original research or unverifiable claims.
* It may contain an of published material that conveys ideas not verifiable with the given sources. Please help add reliable sources about the topic "August 2007."
* It does not cite any references or sources.
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* It may contain an of published material that conveys ideas not verifiable with the given sources. Please help add reliable sources about the topic "August 2007."
* It does not cite any references or sources.
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stone tool is, in the most general sense, any tool made of stone. Although stone-tool-dependent cultures exist even today, most stone tools are associated with prehistoric societies that no longer exist.
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H. floresiensis
Binomial name
†Homo floresiensis
P. Brown et al., 2004
Homo floresiensis ("Man of Flores", nicknamed Hobbit
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Binomial name
†Homo floresiensis
P. Brown et al., 2004
Homo floresiensis ("Man of Flores", nicknamed Hobbit
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To help compare orders of magnitude of different times this page lists times between 32 000 years and 320 000 years (1012 seconds—a terasecond—and 1013 seconds).
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Domestication refers to the process whereby a population of animals or plants becomes accustomed to human provision and control. Humans have brought these populations under their care for a wide range of reasons: to produce food or valuable commodities (such as wool, cotton, or
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Pottery is the ceramic ware made by potters. In everyday usage the term is taken to encompass a wide range of ceramics, including earthenware, stoneware, and porcelain. The places where such wares are made are called potteries.
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Upper Paleolithic (or Upper Palaeolithic) is the third and last subdivision of the Paleolithic or Old Stone Age as it is understood in Europe, Africa and Asia. Very broadly it dates to between 40,000 and 10,000 years ago, roughly coinciding with the appearance of "high"
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This article is about the projectile weapon bow. For the eastern weapon similar to a quarterstaff, see Bō.
A bow is an ancient weapon that fires arrows powered by the elasticity of the bow.
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sling is a projectile weapon typically used to throw a blunt projectile such as a stone. It is also known as the shepherd's sling.
A sling has a small cradle or pouch in the middle of two lengths of cord. The sling stone is placed in the pouch.
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A sling has a small cradle or pouch in the middle of two lengths of cord. The sling stone is placed in the pouch.
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10th millennium BC - 9th millennium BC - 8th millennium BC
The 9th millennium BC marks the beginning of the Neolithic period. Agriculture spreads throughout the Fertile Crescent and use of pottery becomes more widespread.
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The 9th millennium BC marks the beginning of the Neolithic period. Agriculture spreads throughout the Fertile Crescent and use of pottery becomes more widespread.
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A microlith is a small stone tool, typically knapped of flint or chert, usually about three centimetres long or less. Microliths were either produced from small blades (microblades) or made by snapping normal big blades in a controlled manner, which leaves a very typical piece of
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10th millennium BC - 9th millennium BC - 8th millennium BC
The 9th millennium BC marks the beginning of the Neolithic period. Agriculture spreads throughout the Fertile Crescent and use of pottery becomes more widespread.
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The 9th millennium BC marks the beginning of the Neolithic period. Agriculture spreads throughout the Fertile Crescent and use of pottery becomes more widespread.
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2, 1
(mildly basic oxide)
Electronegativity 1.90 (Pauling scale)
Ionization energies
(more) 1st: 745.5 kJmol−1
2nd: 1957.9 kJmol−1
3rd: 3666 kJmol−1
Atomic radius 135 pm
Atomic radius (calc.
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(mildly basic oxide)
Electronegativity 1.90 (Pauling scale)
Ionization energies
(more) 1st: 745.5 kJmol−1
2nd: 1957.9 kJmol−1
3rd: 3666 kJmol−1
Atomic radius 135 pm
Atomic radius (calc.
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9th millennium BC - 8th millennium BC - 7th millennium BC In the 8th millennium BC, agriculture becomes widely practiced in the Fertile Crescent and Anatolia. Pottery becomes widespread (with independent development in Central America) and animal husbandry (pastoralism)
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Agriculture (from Agri Latin for ager ("a field"), and culture, from the Latin cultura "cultivation" in the strict sense of "tillage of the soil". A literal reading of the English word yields "tillage of the soil of a field".
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plough (American spelling: plow) is a tool used in farming for initial cultivation of soil in preparation for sowing seed or planting. It has been a basic instrument for most of recorded history, and represents one of the major advances in agriculture.
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9th millennium BC - 8th millennium BC - 7th millennium BC In the 8th millennium BC, agriculture becomes widely practiced in the Fertile Crescent and Anatolia. Pottery becomes widespread (with independent development in Central America) and animal husbandry (pastoralism)
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wheel is a circular device capable of rotating on its axis, facilitating movement or transportation or performing labour in machines. A wheel together with an axle overcomes friction by facilitating motion by rolling. Common examples are found in transport applications.
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Herod_Archelaus
