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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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The Huolongjing (traditional Chinese: 火龍經; simplified Chinese: 火龙经; pinyin: Huǒ Lóng Jīng; Wade-Giles: Huo Lung Ching; rendered by its translator into English as Fire Drake Manual; in modern English, Fire Dragon Manual) is a 14th century military treatise that was compiled and edited by Jiao Yu and Liu Bowen of the early Ming Dynasty (1368–1644 AD) in China. It outlined the use of various 'fire–weapons' involving the use of gunpowder. The Huolongjing provided information for various gunpowder compositions, including 'magic gunpowder', 'poison gunpowder', or 'blinding and burning gunpowder'. It had descriptions of the Chinese hollow cast iron grenade bomb, shrapnel bombs, and bombs with poisonous concoctions. The book had descriptions of the 10th century Chinese fire arrow, a simple wooden arrow with a spherical soft casing attached to the arrow and filled with gunpowder, ignited by a fuse so that it was propelled forward (and provided a light explosion upon impact). However, the book explained how this simple 'fire arrow' evolved into the metal-tube launched rocket. The book provided descriptions of various rocket launchers that launched tons of rockets at a time, the advent of the two stage rocket having a booster rocket igniting a swarm of smaller ones that were shot from the mouth of a missile shaped like a dragon, and even fin–mounted winged rockets. The book described the use of explosive land mines and descriptions of explosive naval mines at sea and on the river; this incorporated the use of a complex trigger mechanism of falling weights, pins, and a steel wheel lock to ignite the train of fuses. The book described various proto–guns including the fire lance (a short-burst flame-thrower that emitted a charge of shrapnel), multiple metal barrel handguns (with up to ten barrels), and descriptions of handguns with possible serpentine locks, used as components in matchlock firearms. The book provided descriptions of the early bombard and cannon, including the use of hollow gunpowder–packed exploding cannonballs, cannon barrels filled with metal balls containing poisonous gunpowder solutions, and cannons that were mounted on wheeled carriages so that they could be rotated in all directions.

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One of the two identical Voyager probes

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A Japanese toilet deploying its cleaning water jet

Featured biography

Charles Holden
Charles Holden (1875–1960) was an English architect best known for designing many London Underground stations during the 1920s and 1930s, for Bristol Central Library, the Underground Electric Railways Company of London's headquarters at 55 Broadway and for the University of London's Senate House. He also created many war cemeteries in Belgium and northern France for the Imperial War Graves Commission. Although not without its critics, his architecture is widely appreciated. He was awarded the Royal Institute of British Architects' Royal Gold Medal for architecture in 1936 and was appointed a Royal Designer for Industry in 1943. His station designs for London Underground became the corporation's standard design influencing designs by all architects working for the organisation in the 1930s. Many of his buildings have been granted listed building status, protecting them from unapproved alteration. Modestly believing that architecture was a collaborative effort, he twice declined the offer of a knighthood.


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Charles Babbage
Charles Babbage, Passages from the Life of a Philosopher (1864)

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Raitersaich SK DSC 0028.jpg
Credit: Simon Koopmann

An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy along large distances. It consists of one or more conductors suspended by towers or utility poles.


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Technological 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 • Technicism • 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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