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Portal:Technology

From Wikipedia, the free encyclopedia

The Technology Portal


Technology is the practical use of science, including the making, modification or improvement, applied activity or behavior, use and knowledge of tools, machines, techniques, crafts, systems, methods of organization, or environmental modifications or arrangement in order to solve a problem, improve a preexisting solution to a problem, achieve a goal or perform a specific function. It can also refer to the collection of such tools, machinery, modifications, environmental arrangement and procedures. Technologies significantly affect human as well as other animal species' ability to control and adapt to their natural environments. The word technology comes from Greek τεχνολογία (technología); from τέχνη (téchnē), meaning 'art, skill, craft', and -λογία (-logía), meaning 'study of-'. The term can be applied either generally or to many specific areas, examples of which include construction technology, medical technology and information technology.

The human species' use of technology began with the conversion of natural resources into simple tools. The prehistorical discovery of the ability to control fire increased the available sources of food and the invention of the wheel helped humans in travelling in and controlling their environment. Recent technological developments, including the printing press, the telephone, and the Internet, have lessened physical barriers to communication and allowed humans to interact freely on a global scale. However, not all technology has been used for peaceful purposes; the development of weapons of ever-increasing destructive power has progressed throughout history, from clubs to nuclear weapons.

Technology has affected society and its surroundings in a number of ways. In many societies, technology has helped develop more advanced economies (including today's global economy) and has allowed the rise of a leisure class. Many technological processes produce unwanted by-products, known as pollution, and deplete natural resources, to the detriment of the Earth and its environment. Various implementations of technology influence the values of a society and new technology often raises new ethical questions. Examples include the rise of the notion of efficiency in terms of human productivity, a term originally applied only to machines, and the challenge of traditional norms.

Philosophical debates have arisen over the present and future use of technology in society, with disagreements over whether technology improves the human condition or worsens it. Neo-Luddism, anarcho-primitivism, and similar movements criticise the pervasiveness of technology in the modern world, opining that it harms the environment and alienates people; proponents of ideologies such as transhumanism and techno-progressivism view continued technological progress as beneficial to society and the human condition. Indeed, until recently, it was believed that the development of technology was restricted only to human beings, but recent scientific studies indicate that other primates and certain dolphin communities have developed simple tools and learned to pass their knowledge to other generations.

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Illustration of a Song Dynasty junk, a type of ship
The technology of the Song Dynasty (960–1279 AD) was advanced, providing some of the most prolific technological advancements in Chinese history, much of which came from talented statesmen drafted by the government through imperial examinations. The ingenuity of mechanical engineering had a long tradition in China. The Song Dynasty engineer Su Song admitted that he and his contemporaries were building upon the achievements of the ancients such as Zhang Heng, an astronomer, inventor, and early master of mechanical gears. The application of movable type printing advanced the already widespread use of woodblock printing to educate and amuse Confucian students and the masses. The application of new weapons employing the use of gunpowder enabled the Song Dynasty to ward off its militant enemies until its collapse to the Mongol forces of Kublai Khan, in the late 13th century. Notable advancements in civil engineering, nautics, and metallurgy were made in Song China, as well as the introduction of the windmill to China during the 13th century. These advancements, along with the introduction of paper-printed money, helped revolutionize and sustain the economy of the Song Dynasty.


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Gerard K. O'Neill
Gerard K. O'Neill (1927–1992) was an American physicist and space activist. As a faculty member of Princeton University, he invented a device called the particle storage ring for high energy physics experiments. Later, he invented a magnetic launcher called the mass driver. In the 1970's he developed a plan to build human settlements in outer space, including a space habitat design known as the O'Neill cylinder. He founded the Space Studies Institute, an organization devoted to funding research into space manufacturing and colonization. In 1965 at Stanford University, he performed the first colliding beam physics experiment. While teaching physics at Princeton, O'Neill became interested in the possibility that humans could live in outer space. He researched and proposed a futuristic idea for human settlement in space, the O'Neill cylinder in "The Colonization of Space", his first paper on the subject. He held a conference on space manufacturing at Princeton in 1975. Many who became post-Apollo-era space activists attended. O'Neill built his first mass driver prototype with professor Henry Kolm in 1976. He considered mass drivers critical for extracting the mineral resources of the Moon and asteroids.


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Alfred Hitchcock
Alfred Hitchcock, interview with Peter Bogdanovich (1963)


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Astrolabe-Persian-18C.jpg
Credit: Andrew Dunn

An astrolabe is an elaborate inclinometer, historically used by astronomers, navigators, and astrologers for predicting the position of celestial bodies, triangulation, and to cast horoscopes.


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Technological aspect of idea concepts and issues – Appropriate technology • Clean technology • Diffusion of innovations in science • Doomsday device • Ecotechnology • Environmental technology • High technology • History of science and technology • History of technology • Industry • Innovation • Knowledge economy • Persuasion technology • Pollution • Posthumanism • Precautionary principle • Research and development • Science, technology, and society • Strategy of technology • Superpowers • Sustainable technology • Technocapitalism • Technocriticism • Techno-progressivism • Technological convergence • Technological evolution • Technological determinism • Technological diffusion • Technological singularity • Technology acceptance model • Technology assessment • Technology lifecycle • Technology transfer • Technology Tree • Technorealism • Timeline of invention • Transhumanism

Technologies and applied sciences – Aerospace • Agriculture, Agricultural science & Agronomy • Architecture • Artificial intelligence • Automation • Automobile • Big Science • Biotechnology • Cartography • Chemical engineering • Communication • Computing (Computer science, List of open problems in computer science, Programming, Software engineering, Information technology, Computer engineering) • Construction • Design • Electronics • Energy development • Energy storage • Engineering • Ergonomics • Firefighting • Forensics • Forestry • Free software • Health sciences • Health Informatics • Industry • Information science • Internet • Library and information science • Machines • Management • Manufacturing • Mass communication • Mass production • Medicine (Unsolved problems in neuroscience) • Military science • Military technology and equipment • Mining • Nanotechnology • Nuclear technology • Packaging and labeling • Processes • Robotics • Space exploration • Technology forecasting • Telecommunications • Tools • Transport • Vehicles • Weapons

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