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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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The firepower of a battleship demonstrated by USS Iowa (c. 1984). The muzzle blasts distort the ocean surface.
A battleship is a large armored warship with a main battery consisting of large caliber guns. During the late 19th and early 20th centuries the battleship was the most powerful type of warship, and a fleet centered around the battleship was part of the command of the sea doctrine for several decades. By the time of World War II, however, the battleship was made obsolete as other ships, primarily the smaller and faster destroyers, the secretive submarines, and the more versatile aircraft carriers came to be far more useful in naval warfare. While a few battleships were repurposed as fire support ships and as platforms for guided missiles, few countries maintained battleships after the 1950s, with the last battleships being decommissioned in the early 1990s. Read more...
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Bust of Shen at the Beijing Ancient Observatory
Shen Kuo (Chinese: 沈括; 1031–1095) or Shen Gua, courtesy name Cunzhong (存中) and pseudonym Mengqi (now usually given as Mengxi) Weng (夢溪翁), was a Chinese polymathic scientist and statesman of the Song dynasty (960–1279). Excelling in many fields of study and statecraft, he was a mathematician, astronomer, meteorologist, geologist, entomologist, anatomist, climatologist, zoologist, botanist, pharmacologist, medical scientist, agronomist, archaeologist, ethnographer, cartographer, geographer, geophysicist, mineralogist, encyclopedist, military general, diplomat, hydraulic engineer, inventor, economist, academy chancellor, finance minister, governmental state inspector, philosopher, art critic, poet, and musician. He was the head official for the Bureau of Astronomy in the Song court, as well as an Assistant Minister of Imperial Hospitality. At court his political allegiance was to the Reformist faction known as the New Policies Group, headed by Chancellor Wang Anshi (1021–1085). Read more...

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ISS March 2009.jpg
Credit: NASA

The International Space Station (ISS) is a habitable artificial satellite in low Earth orbit. A joint effort by NASA, the Russian Federal Space Agency, JAXA, ESA, and CSA, it is the ninth space station to be inhabited.



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May 17, 2020 –
The United States Space Force successfully launches its X-37B robotic spacecraft on a classified mission from Cape Canaveral Air Force Station via an Atlas V rocket. Though little is known about the classified program, the spacecraft is expected to deploy a satellite into orbit, and test the "power-beaming technology". (BBC)

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