Portal:Technology

The Technology Portal Wheel Technology is the application of conceptual knowledge to achieve practical goals, especially in a reproducible way. The word technology can also mean the products resulting from such efforts, including both tangible tools such as utensils or machines, and intangible ones such as software. Technology plays a critical role in science, engineering, and everyday life. Technological advancements have led to significant changes in society. The earliest known technology is the stone tool, used during prehistoric times, followed by the control of fire, which contributed to the growth of the human brain and the development of language during the Ice Age. The invention of the wheel in the Bronze Age allowed greater travel and the creation of more complex machines. More recent technological inventions, including the printing press, telephone, and the Internet, have lowered barriers to communication and ushered in the knowledge economy. While technology contributes to economic development and improves human prosperity, it can also have negative impacts like pollution and resource depletion, and can cause social harms like technological unemployment resulting from automation. As a result, philosophical and political debates about the role and use of technology, the ethics of technology, and ways to mitigate its downsides are ongoing. (Full article...) More about Technology... Selected article In cryptography, a Caesar cipher is one of the simplest and most well-known classical encryption techniques. It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter some fixed number of positions further down the alphabet. For example, with a shift of 3, A would be replaced by D, B would become E, and so on. The method is named after Julius Caesar, who used it to communicate with his generals. The encryption step performed by a Caesar cipher is often incorporated as part of more complex schemes, such as the Vigenère cipher, and still has modern application in the ROT13 system. As for all single alphabet substitution ciphers, the Caesar cipher is easily broken and in practice offers no communication security. In this month 12 August 1908 – The first Ford Model T (pictured), generally regarded as the first affordable automobile, is assembled 20 August 1989 – The O-Bahn Busway in Adelaide, the world's longest guided busway, opens 26 August 1939 – A game between the Brooklyn Dodgers and the Cincinnati Reds becomes the first ever Major League Baseball telecast 29 August 1949 – The nuclear arms race begins after the Soviet Union becomes the second nation to test a nuclear weapon More anniversaries... Did you know... ... that electrothermal-chemical technology can now almost double the muzzle energy of a tank gun? ... that the Narita Shinkansen from Tokyo to Narita International Airport, which took nine years to build 9 km of track bed, is the only bullet train line ever officially cancelled? ... that Malin Space Science Systems operates the camera on the Mars Global Surveyor (pictured)? Featured biography Joseph Francis Shea (1926–1999) was an aerospace engineer and NASA manager. Born in the Bronx, New York, he was educated at the University of Michigan, receiving a Ph.D. in Engineering Mechanics in 1955. After working for Bell Labs on the radio inertial guidance system of the Titan I intercontinental ballistic missile, he was hired by NASA in 1961. As Deputy Director of NASA's Office of Manned Space Flight, and later as head of the Apollo Spacecraft Program Office, Shea played a key role in shaping the course of the Apollo program, helping to lead NASA to the decision in favor of lunar orbit rendezvous and supporting "all up" testing of the Saturn V rocket. While sometimes causing controversy within the agency, Shea was remembered by his former colleague George Mueller as "one of the greatest systems engineers of our time". Deeply involved in the investigation of the Apollo 1 fire, Shea suffered a nervous breakdown as a result of the stress that he suffered. He was removed from his position and left NASA shortly afterwards. From 1968 until 1990 he worked as a senior manager at Raytheon in Lexington, Massachusetts, and thereafter became an adjunct professor of aeronautics and astronautics at MIT. While Shea served as a consultant for NASA on the redesign of the International Space Station in 1993, he was forced to resign from the position due to health issues. Wikiprojects Parent project Technologie Related projects Architecture Computing Computerwissenschaft Technik Electronics Energy development Energy History of Science Metalworking Skyscrapers Telekommunikation Woodworking What are WikiProjects? Selected picture Telephone Credit: Berthold Werner A telephone, or phone, is a telecommunications device that converts sound, typically the human voice, into electronic signals suitable for transmission via cables or other transmission media over long distances through satellite. Selected quote Kategorien Technology categories Computing · Classes of computers · Companies · Computer architecture · Computer model · Computer science · Computer security · Computing and society · Data · Embedded systems · Information systems · Information technology · Internet · Languages · Multimedia · Networks · Operating systems · Platforms · Product lifecycle management · Real-time computing · Software · Security ·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 · Radio-frequency identification · Radio electronics · Semiconductors · Signal cables · Surveillance · Telecommunications · Terminology · More... Engineering: Aerospace engineering · Biological engineering · Chemical engineering · Civil engineering · Computer engineering · Electrical engineering · Electronic engineering · Environmental engineering · Geotechnical engineering · Industrial engineering · Marine engineering · Materials science · Mechanical engineering · Nuclear technology · Signal processing · Software engineering · Structural engineering Transport · Aviation · Rail transport · Spaceflight · Road transport · Water transport Timelines: Technology timelines Other sub-categories: Agriculture · Animation · Architecture · Carpentry · Communications · Education · Electrical wiring · Machining · Manufacturing · Medicine · Metalworking · Optics · Plumbing · Tools · Welding · Woodworking Main topics Technologie 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 News August 2, 2024 – Mass surveillance in the United Kingdom Several civil rights groups denounce proposals made by British Prime Minister Keir Starmer to grant British police nationalized live facial recognition technology and surveillance to charge people police consider significantly likely to participate in far-right riots, condemning the opportunism of the proposals, their potential racial and gender inaccuracy, and their possible use to target future legal protests. (The Guardian) Things you can do ​ Check the recent changes page for improvements, other changes, and vandalism to these articles Article requests: Computer science, computing, and Internet topics • Engineering topics • Technology and tools topics Deletion discussions: Listed at Wikipedia:WikiProject Deletion sorting/Technology Expand stub articles: stub categories Electronics • Engineer • Optics • Robotics • Telecommunications • Wireless Notability: Articles with notability concerns, listed at WikiProject Notability Requested pictures: Technology topics, requested pictures Related portals Associated Wikimedia