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  1. Edinburgh is the capital city of Scotland and one of its 32 council areas. Located in the south-east of Scotland, it is bounded to the north by the Firth of Forth estuary and to the south by the Pentland Hills. With a population of 506,520 in mid-2020, Edinburgh is the second-largest city in Scotland by population and the seventh-largest in the ...

  2. en.wikipedia.org › wiki › ElectronElectron - Wikipedia

    The electron ( e− , or β− in nuclear reactions) is a subatomic particle with a negative one elementary electric charge.[13] Electrons belong to the first generation of the lepton particle family,[14] and are generally thought to be elementary particles because they have no known components or substructure.[1] The electron's mass is ...

  3. The Enhanced Fujita scale (abbreviated as EF-Scale) rates tornado intensity based on the severity of the damage they cause. It is used in some countries, including the United States and France [1] The EF scale is also unofficially used in other countries including China [2]. The scale has the same basic design as the original Fujita scale—six ...

  4. en.wikipedia.org › wiki › CapacitorCapacitor - Wikipedia

    Electronic symbol. In electrical engineering, a capacitor is a device that stores electrical energy by accumulating electric charges on two closely spaced surfaces that are insulated from each other. The capacitor was originally known as the condenser, [1] a term still encountered in a few compound names, such as the condenser microphone.

  5. The Richter scale [1] ( / ˈrɪktər / ), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, [2] is a measure of the strength of earthquakes, developed by Charles Francis Richter in collaboration with Beno Gutenberg, and presented in Richter's landmark 1935 paper, where he called it the "magnitude s...

  6. en.wikipedia.org › wiki › E-commerceE-commerce - Wikipedia

    E-commerce (electronic commerce) is the activity of electronically buying or selling products on online services or over the Internet.E-commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain management, Internet marketing, online transaction processing, electronic data interchange (EDI), inventory management systems, and automated data collection systems.

  7. en.wikipedia.org › wiki › DinosaurDinosaur - Wikipedia

    Pre-scientific history Dinosaur fossils have been known for millennia, although their true nature was not recognized. The Chinese considered them to be dragon bones and documented them as such. For example, Huayang Guo Zhi (華陽國志), a gazetteer compiled by Chang Qu (常璩) during the Western Jin Dynasty (265–316), reported the discovery of dragon bones at Wucheng in Sichuan Province.

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