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  1. v. t. e. 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 ...

  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, Canada, France, and Japan. The scale has the same basic design as the original Fujita scale—six intensity categories from zero to five, representing increasing ...

  4. the free encyclopedia that anyone can edit. "The Day Before the Revolution" is a science fiction short story by American writer Ursula K. Le Guin (pictured). First published in Galaxy in August 1974, it was republished in Le Guin's The Wind's Twelve Quarters (1975). Set in her fictional Hainish universe, the story has strong connections to her ...

  5. 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.

  6. en.wikipedia.org › wiki › HTTPSHTTPS - Wikipedia

    Hypertext Transfer Protocol Secure (HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP). It uses encryption for secure communication over a computer network, and is widely used on the Internet. In HTTPS, the communication protocol is encrypted using Transport Layer Security (TLS) or, formerly, Secure Sockets Layer (SSL). ). The protocol is therefore also referred to as HTTP over ...

  7. en.wikipedia.org › wiki › San_MarinoSan Marino - Wikipedia

    San Marino (/ ˌ s æ n m ə ˈ r iː n oʊ / SAN mə-REE-noh, Italian: [sam maˈriːno]; Romagnol: San Maréin or San Maroin), officially the Republic of San Marino (Italian: Repubblica di San Marino) and also known as the Most Serene Republic of San Marino (Italian: Serenissima Repubblica di San Marino), is a European microstate and enclave within Italy.

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