Portal:Technology

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edit   The Technology Portal Technology (Greek technologia (τεχνολογία) < techne (τέχνη) "craft" + -ologia (-ολογία) "science or discipline") is the knowledge, making and usage of tools, techniques, crafts, systems or methods of organization to benefit a group of humans, or humanity as a whole. Over two million years ago, human ancestors are believed to have used stone tools, one of the earliest examples of technology. Other early examples include the controlled use of fire, the use of clothing, and the development of agriculture. These, and other technologies significantly affect how humans interact with the natural environment. Many important technological advances are related to transportation, some early examples being seaworthy boats, and the invention of the wheel. More recent examples include rail transport, automobiles, aviation, and spaceflight. Some technologies have improved our ability to interact and communicate with each other, such as the development of a written language, the printing press, the telephone, and most recently the Internet. More about technology... Show new selections below (purge) edit   Selected article Radioactive decay is the process in which an unstable atomic nucleus loses energy by emitting ionizing particles and radiation. This decay, or loss of energy, results in an atom of one type, called the parent nuclide transforming to an atom of a different type, called the daughter nuclide. For example: a carbon-14 atom (the "parent") emits radiation and transforms to a nitrogen-14 atom (the "daughter"). This is a random process on the atomic level, in that it is impossible to predict when a given atom will decay, but given a large number of similar atoms the decay rate, on average, is predictable. The SI unit of radioactive decay is the becquerel (Bq). One Bq is defined as one transformation (or decay) per second. Since any reasonably-sized sample of radioactive material contains many atoms, a Bq is a tiny measure of activity; amounts on the order of TBq (terabecquerel) or GBq (gigabecquerel) are commonly used. Another unit of radioactivity is the curie, Ci, which was originally defined as the activity of one gram of pure radium, isotope Ra-226. At present it is equal, by definition, to the activity of any radionuclide decaying with a disintegration rate of 3.7 × 1010 Bq. The use of Ci is presently discouraged by the SI. ...Archive/Nominations Read more... edit   Selected picture Credit: Andrew Balet One of Thomas Edison's major innovations was the first industrial research lab, which was built in Menlo Park, New Jersey. ...Archive/Nominations Read more... edit   Did you know... ...that the Vostok 4 mission was shortened because cosmonaut Pavel Romanovich Popovich accidentally told flight controllers that he was "observing thunderstorms". This was a coded signal requesting an abort because the cosmonaut was feeling ill, however Popovich was actually trying to inform ground controllers that he could see thunderstorms from space. Other "Did you know" facts... Read more... edit   News Wikinews Science and technology portal October 1: 'Fascinating' and 'provocative' research examines genetic elements of bipolar, schizophrenia September 27: Study: Birds learn nest building September 10: Out of space in outer space: Special report on NASA's 'space junk' plans September 3: Study concludes 9/11 firefighters are 19% more likely to develop cancer August 18: SETI Institute set to re-open August 14: New drug may treat virtually all viral infections August 13: Shell reports oil leak at North Sea platform August 12: Scientists use gene therapy, patients' own immune systems to fight leukemia August 9: DNA components found in meteorites August 6: Juno spacecraft bound for Jupiter edit   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 • 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 Web • Languages • Multimedia • Networks • Industrial Networks • Operating systems • Platforms • Product lifecycle management • Programming • Real-time computing • Software • Software engineering • Unsolved problems in computer science • More... 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