Portal:Technology

TECHNOLOGY PORTAL

A steam turbine with the case opened. Such turbines produce most of the electricity used today. Electricity consumption and living standards are highly correlated. Electrification is believed to be the most important engineering achievement of the 20th century.

Technology ("science of craft", from Greek τέχνη, techne, "art, skill, cunning of hand"; and -λογία, -logia) is the sum of techniques, skills, methods, and processes used in the production of goods or services or in the accomplishment of objectives, such as scientific investigation. Technology can be the knowledge of techniques, processes, and the like, or it can be embedded in machines to allow for operation without detailed knowledge of their workings. Systems (e.g. machines) applying technology by taking an input, changing it according to the system's use, and then producing an outcome are referred to as technology systems or technological systems.

The simplest form of technology is the development and use of basic tools. The prehistoric discovery of how to control fire and the later Neolithic Revolution increased the available sources of food, and the invention of the wheel helped humans to travel in and control their environment. Developments in historic times, 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.

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An exposed jet engine at a trade show. The rear of the polished metal fan case is visible on the left. The outer casing of the compressor section, covered in fuel lines and electrical wires is to the right of the fan case. The right of the image shows the back of the engine, the exhaust area of the turbine section.
Rear view of a CFM56-5
The CFM International CFM56 (U.S. military designation F108) series is a French-American family of high-bypass turbofan aircraft engines made by CFM International (CFMI), with a thrust range of 18,500 to 34,000 lbf (82 to 150 kN). CFMI is a 50–50 joint-owned company of Safran Aircraft Engines (formerly known as Snecma) of France, and GE Aviation (GE) of the United States. Both companies are responsible for producing components and each has its own final assembly line. GE produces the high-pressure compressor, combustor, and high-pressure turbine, Safran manufactures the fan, gearbox, exhaust and the low-pressure turbine, and some components are made by Avio of Italy and Honeywell from the US. The engines are assembled by GE in Evendale, Ohio, and by Safran in Villaroche, France. The completed engines are marketed by CFMI. Despite initial export restrictions, it is one of the most common turbofan aircraft engines in the world, in four major variants. Read more...
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A wheel is a circular component that is intended to rotate on an axial bearing. The wheel is one of the main components of the wheel and axle which is one of the six simple machines.



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March 28, 2020 – 2019–20 coronavirus pandemic
Authorities in Madrid decide to stop using a Chinese rapid COVID-19 test kit, developed by Shenzhen Bioeasy Biotechnology, after research suggested it was not accurate enough with a rate of less than 30%. (NewsAu)
March 19, 2020 – 2019–20 coronavirus pandemic
While educational facilities close across the United States due to the coronavirus pandemic, the U.S. Department of Education tells educators that online learning must comply with civil rights laws, including making sure learning tools are available to students. However, as not every student has access to the internet, many students will be unable to participate, prompting some public school systems to implement "enrichment" policies. Under these policies, coursework completed under online learning will not officially count towards advancing to the next academic term. (The Wall Street Journal)
March 18, 2020 – 2019–20 coronavirus pandemic
In the United States, several K–12 school systems will keep their learning facilities physically closed for the remainder of the academic school year due to the coronavirus pandemic, resulting in 92,000 American schools across 39 states, and 42.1 million students and their families, transitioning to online learning, while some systems will not calculate grades at all. (Education Week) (CNN)
January 13, 2020 –
Visa Inc. purchases financial technology firm Plaid for US$5.3 billion, after it and Mastercard each invested US$250 million into the company last year. (Reuters)
January 13, 2020 – Houston Astros sign stealing scandal
Houston Astros general manager Jeff Luhnow and manager A. J. Hinch are suspended by Major League Baseball for the entire 2020 season after the league concludes its investigation into the team's illegal use of technology to steal signs during the team's championship 2017 season. They are also fired by the organization. (ESPN)

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