Portal:Technology

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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Electrical engineering
Electrical engineering is a professional engineering discipline that deals with the study and application of electricity, electromagnetism and electronics. The field first became an identifiable occupation in the late nineteenth century with the commercialization of the electric telegraph and electrical power supply and now encompasses a range of sub-disciplines including power, control systems, electronics and telecommunications. Whilst these terms are often used to mean the same, electrical engineering is sometimes distinguished from electronics engineering. Where this distinction is made, electrical engineering is considered to deal with the problems associated with large-scale electrical systems such as power transmission and motor control whereas electronics engineering deals with the study of small-scale electronic systems including semiconductors and the design of integrated circuits. Advances during the 20th century in radio technologies, followed by the invention of early computers and integrated circuits, led to the development of the specialized field. Meanwhile, universities were developing formal programs of study, and today, the field's practitioners generally hold an academic degree in their discipline and may be certified by a professional body.


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Louis Slotin
Louis Slotin (1910–1946) was a Canadian physicist and chemist who took part in the Manhattan Project, the secret U.S. program during World War II that developed the atomic bomb. As part of the Manhattan Project, Slotin performed experiments with uranium and plutonium cores to determine their critical mass values. During World War II, Slotin continued his research at Los Alamos National Laboratory. On 21 May 1946, Slotin accidentally began a fission reaction, which released a burst of hard radiation. He was rushed to a hospital, and died of radiation sickness nine days later on 30 May, the second victim of a criticality accident in history. Slotin was hailed as a hero by the United States government for reacting quickly enough to prevent the deaths of his colleagues due to the accident he caused. The accident and its aftermath have been dramatized in fictional accounts.


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Thomas Edison
Thomas Edison, conversation with Henry Ford and Harvey Firestone (1931)


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XO-Beta1-mikemcgregor-2.jpg
Cr: Mike McGregor

The OLPC XO-1 is an inexpensive subnotebook laptop computer intended to be distributed to children in developing countries.


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Technology

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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