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Electrical Telegram
Electrical telegraphs were point-to-point text messaging systems, primarily used from the 1840s until the late 20th century. It was the first electrical telecommunications system and the most widely used of a number of early messaging systems called ''telegraphs'', that were devised to communicate text messages quicker than physical transportation. Electrical telegraphy can be considered to be the first example of electrical engineering. Text telegraphy consisted of two or more geographically separated stations, called telegraph offices. The offices were connected by wires, usually supported overhead on utility poles. Many different electrical telegraph systems were invented, but the ones that became widespread fit into two broad categories. The first category consists of needle telegraphs in which a needle pointer is made to move electromagnetically with an electric current sent down the telegraph line. Early systems used multiple needles requiring multiple wires. The first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cooke And Wheatstone Electric Telegraph
Cooke is a surname derived from the occupation of cook. Notable people with the surname include: * Alexander Cooke (died 1614), English actor * Alfred Tyrone Cooke, of the Indo-Pakistani wars * Alistair Cooke KBE (1908–2004), British-American journalist and broadcaster * Amos Starr Cooke (1810–1871), found of Royal School and Castle & Cooke in Hawaii * Anna Rice Cooke (1853–1934), patron of the arts and founder of the Honolulu Academy of Arts * Anthony Cooke (1505–1576), British scholar * Baden Cooke (born 1978), Australian cyclist * Barrie Cooke (born 1931), Irish painter * Bates Cooke, US Representative 1831–1833, and NY State Comptroller 1839–1841 * Benjamin Cooke (1734–1793), British musician * Beryl Cooke (1906–2001), British actress * C. R. Cooke (Conrad Reginald Cooke, 1901–1996), English early Himalayan mountaineer * Charles Cooke (other), several people * Chauncey H. Cooke (1846–1919), American soldier in the U.S. Civil War * Christian Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
