Portal:Technology

Selected article

Superstring theory is an attempt to explain all of the particles and fundamental forces of nature in one theory by modelling them as vibrations of tiny supersymmetric strings. It is considered one of the most promising candidate theories of quantum gravity. Superstring theory is a shorthand for supersymmetric string theory because unlike bosonic string theory, it is the version of string theory that incorporates fermions and supersymmetry.

The deepest problem in theoretical physics is harmonizing the theory of general relativity, which describes gravitation and applies to large-scale structures (stars, galaxies, super clusters), with quantum mechanics, which describes the other three fundamental forces acting on the atomic scale.

The development of a quantum field theory of a force invariably results in infinite (and therefore useless) probabilities. Physicists have developed mathematical techniques (renormalization) to eliminate these infinities which work for three of the four fundamental forces – electromagnetic, strong nuclear and weak nuclear forces - but not for gravity. The development of a quantum theory of gravity must therefore come about by different means than those used for the other forces.

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Selected picture

Credit: Luke E.S. Romano, digital painting of Azzurra De Sanctis (public domain)

Digital art most commonly refers to art created on a computer in digital form. In an expanded sense, "digital art" is a term applied to contemporary art that uses the methods of mass production or digital media. The impact of digital technology has transformed traditional activities such as painting, drawing and sculpture, while new forms, such as net art, digital installation art, and virtual reality, have been recognized artistic practices.

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News

Wikinews Science and technology portal

• July 4: Three new dinosaurs discovered in Australia
• July 4: ESA launches largest commercial telecom satellite
• July 4: Virgin lizard reproduces
• June 26: University study finds U.S. defense contract information in 'electronic waste' in Africa
• June 25: Saturn moon may contain liquid water
• June 24: U.S., Mexico and U.K. top medalists at RoboGames 2009
• June 23: Category:January 13, 2005
• June 19: Fans worldwide queue for new iPhone
• June 19: Mexican therapy increases survival of cervical cancer patients
• June 19: Canada's supercomputer goes online

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Did you know...

• ... that both the Mozilla Firefox and Microsoft Internet Explorer web browsers descended from Netscape Navigator?

• ... that a coherer, hot wire barretter, electrolytic detector, cat's whisker and vacuum tube were all types of radio detectors?

• ... that in 2008 Hewlett-Packard created a prototype of the theoretical fourth and last passive circuit element, the memristor, that may one day revolutionize electronics, although the theory was devised in 1971?

• ... that a mercury arc rectifier converts alternating current to direct current by means of an electric arc through mercury vapor?

• ... that only one of the 266 1076 Class steam locomotives built for the Great Western Railway was named, and the rest had only numbers?

• ... that the six Charles Tayleur locomotives ordered by Isambard Kingdom Brunel for the Great Western Railway were unsuccessful?

• ... that the intensity of a tropical cyclone (pictured) is usually determined by the Dvorak technique using only visible and infrared satellite images?

• ... that the technique of double-balloon enteroscopy allows any position along the gastrointestinal tract to be visualized in real-time?

Lists of basic topics   (all)

Main outlines: Outline of science and Outline of technology.

Applied science:

Forensics • Forestry • Nanotechology

Business management:

Marketing • Manufacturing

Domestic:

Education • Family and consumer science

Energy:

Energy development • Energy storage • Nuclear technology

Engineering:

Agriculture • Automation • Chemical engineering

Health and safety:

Biotechnology • Ergonomics • Firefighting

Industry:

Architecture

Construction

Machines

Industrial machinery • Robotics

Mining

Information and communication:

Cartography

Computer science

Artificial intelligence • Free software • Information technology • Internet • Programming • Software engineering

Design

Library science

Telecommunication

Radio

Military science

Martial arts

Transport:

Aerospace • Automobiles • Space exploration • Vehicles

Notes

Categories   (all)

Main categories: Technology and Applied sciences

Agriculture & Agronomy • Architecture • Automation • Biotechnology • Blu-ray • Cartography • Chemical engineering • Communication (Media studies • Telecommunications) • Construction • Design • Digital divide • Earthquake engineering • Electronics • Energy • Ergonomics • Firefighting • Fire prevention • Forensics • Forestry • Industry • Information science • Information technology • Internet • Management • Manufacturing • Marketing • Medicine (Unsolved problems in neuroscience) • Metalworking • Microtechnology • Military science • Mining • Nanotechnology • Nuclear technology • Nutrition • Optics • Plumbing • Robotics • Sound technology • Space exploration • Technology forecasting • Tools

Computing:  Artificial intelligence • Classes of computers • Companies • Computer architecture • Computer model • Computer science • Computer security • Computing and society • Data • Embedded systems • Free software • Human-computer interaction • Information systems • Internet • Mobile Internet • Languages • Multimedia • Networks • Industrial Networks • Operating systems • Platforms • Product lifecycle management • Programming • Real-time computing • Software • Software engineering • Unsolved problems in computer science • More...

Electronics:   Avionics • RF & MMIC Design • Circuits • Companies • Connectors • Consumer electronics • Digital electronics • Digital media • Electrical components • Electronic design • Electronics manufacturing • Embedded systems • Integrated circuits • Microwave technology • Molecular electronics • Water technology • Optoelectronics • Quantum electronics • RFID • Radio electronics • Semiconductors • Signal cables • Surveillance • Telecommunications • Terminology • More...

Engineering:  Aerospace engineering • Bioengineering • Chemical engineering • Civil engineering • Electrical engineering • Environmental engineering • Materials science • Mechanical engineering • Nuclear technology • Software engineering • Structural engineering • Systems engineering

Transportation:   By country • Automobiles • Aviation • Cycling • Public transport • Rail transport • Road transport • Shipping • Spaceflight • Vehicles • Water transport

Technology timelines

Topics   (all)

Glossaries   (all)

Air pollution dispersion terminology • Blogging • Broadcasting • Computing and IT

(Alternative terms for free software • Computer • Fisheries • Fuel cell terms • Internet • Legal terms • Object-oriented programming • Unified Modeling Language) • Firefighting (Equipment • Wildland fires) • Library and information science • Machine vision • Metalworking terminology • Mill machinery • Nautical • Telephony • Textile manufacturing • Transport (Aviation, aerospace, and aeronautics • Automotive design • Rail (Passenger rail (NZ railfan • UK railfan • U.S. railfan) • Woodworking (Joinery) • Winemaking

Related portals   (all)

Technology and applied sciences

Agronomy • Architecture (Bridges, Portal) • Artificial intelligence • Biotechnology • Electronics • Energy (Renewable energy) • Engineering • Hazardous Materials • Home improvement • Nanotechnology • Nuclear technology • Robotics

Information technology

Typography • Apple Inc. • Blu-ray • Computer networking (Internet (Forums)) • Computer science • Computer security • Microsoft • Python programming • Software (Free software (Linux))

Transport

Aviation • Cars (Australian, Japanese) • Cycling • London transport • Nautical • Roads (U.S. Roads) • Spaceflight (Human spaceflight, Space tourism) • Trains (Rapid transit, UK Railways, UK Trams) • UK Waterways

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