Case–Shiller index

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Selected quarterly Case–Shiller index values, 1987–2008. The Standard & Poor’s Case–Shiller Home Price Indices are constant-quality house price indices for the United States. There are multiple Case–Shiller home price indices: A national home price index, a 20-city composite index, a … Read More

History of Artificial Satellites

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Sputnik 1: The first artificial satellite In May, 1946, the Preliminary Design of an Experimental World-Circling Spaceship stated, “A satellite vehicle with appropriate instrumentation can be expected to be one of the most potent scientific tools of the Twentieth Century. … Read More

Antiasthmatic drugs – Asthma

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Bronchial Asthma Classifications and external resources ICD-10 J45. ICD-9 493 OMIM 600807 DiseasesDB 1006 MedlinePlus 000141 eMedicine med/177 emerg/43 MeSH C08.127.108 Asthma is a disease of the respiratory system in which the airways constrict, become inflamed, and are lined with … Read More

Construction

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In the fields of architecture and civil engineering, construction is a process that consists of the building or assembling of infrastructure. Far from being a single activity, large scale construction is a feat of multitasking. Normally the job is managed … Read More

Biathlon

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Biathlon (not to be confused with duathlon) is a term used to describe any sporting event made up of two disciplines. Biathlon, however, usually refers specifically to the winter sport that combines cross-country skiing and rifle shooting. Another popular variant … Read More

Abortifacients

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Bas-relief at Angkor Wat, Cambodia, c. 1150, depicting a demon inducing an abortion by pounding the abdomen of a pregnant woman with a pestle. An abortifacient is a substance that induces abortion. History The ancient Greek colony of Cyrene at … Read More

History of Adobe Flash

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Flash grew out of a chain of thought that started in the 1980s with some ideas Jonathan Gay had at school, then at college and later while working for Silicon Beach Software and its successors.[1] In January 1993, Charlie Jackson, … Read More

Link farm

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On the World Wide Web, a link farm is any group of web pages that all hyperlink to every other page in the group. Although some link farms can be created by hand, most are created through automated programs and … Read More

Mobile phone history

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Mobile car phone, 1964 Mobile phones have existed at least since the 1950s, though the distinction becomes blurry when special systems are used to “patch” conventional Radiotelephones (2-way radio) into a phone network with the assistance of human operators. Modern … Read More

Invention and history of radio

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Tesla demonstrating wireless transmissions during his high frequency and potential lecture of 1891. After continued research, Tesla presented the fundamentals of radio in 1893. The identity of the original inventor of radio, at the time called wireless telegraphy, is contentious. … Read More

Ajax history

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The first use of the term in public was by Jesse James Garrett in February 2005.[1] Garrett thought of the term when he realized the need for a shorthand term to represent the suite of technologies he was proposing to … Read More

Punchboard

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A punchboard is a game board, primarily consisting of a number of holes which was used once for lottery playings. History Punchboards were originally used in the eighteenth century for gambling purposes. A local tavern owner would constuct a game … Read More

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