{"id":595,"date":"2018-05-22T09:20:32","date_gmt":"2018-05-22T12:20:32","guid":{"rendered":"https:\/\/museuweg.net\/blog\/?p=595"},"modified":"2026-02-09T15:45:17","modified_gmt":"2026-02-09T18:45:17","slug":"william-sturgeon-o-pai-do-eletroima","status":"publish","type":"post","link":"https:\/\/museuweg.net\/blog\/william-sturgeon-o-pai-do-eletroima\/","title":{"rendered":"William Sturgeon: o pai do eletro\u00edm\u00e3"},"content":{"rendered":"<p>Hoje, em 22 de maio de 1783, nascia no Reino Unido o f\u00edsico Willian Sturgeon. Ele foi o respons\u00e1vel por uma das inven\u00e7\u00f5es que alterou o curso da hist\u00f3ria: o eletro\u00edm\u00e3. A partir dele, outros dispositivos centrais da tecnologia moderna puderam surgir, como o tel\u00e9grafo e o motor el\u00e9trico.<\/p>\n<p><strong>A vida antes e depois da f\u00edsica<\/strong><\/p>\n<p>Willian Sturgeon nasceu em Whittington, em Lancashire, um dos condados da Inglaterra, onde foi aprendiz de sapateiro. Ele se juntou ao ex\u00e9rcito em 1802 e se dedicou ao ensino de matem\u00e1tica e f\u00edsica.<\/p>\n<p>Autodidata em fen\u00f4menos el\u00e9tricos e ci\u00eancias naturais, passou muito tempo lecionando e conduzindo experimentos el\u00e9tricos. Em 1824, tornou-se professor de Ci\u00eancias e Filosofia no Royal Military College, em Addiscombe, Surrey. Foi no ano seguinte que Sturgeon apresentou seu primeiro eletro\u00edm\u00e3.<\/p>\n<p><strong>Como se deu a inven\u00e7\u00e3o?<\/strong><\/p>\n<p>Sturgeon curvou uma barra de ferro comum, criando o formato de uma ferradura. Depois, a revestiu com verniz e enrolou com fio de cobre desencapado. Quando provocou a passagem de corrente gerada por uma pilha voltaica pelo fio, a ferradura se tornou um im\u00e3 capaz de sustentar o peso de quase 4 quilos, o que representava muito para a \u00e9poca. Surgia, assim, o eletro\u00edm\u00e3.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-597\" src=\"https:\/\/museuweg.net\/blog\/wp-content\/uploads\/2018\/04\/pai-do-eletroima-2.png\" alt=\"pai-do-eletroima-2\" width=\"1100\" height=\"400\" srcset=\"https:\/\/museuweg.net\/blog\/wp-content\/uploads\/2018\/04\/pai-do-eletroima-2.png 1100w, https:\/\/museuweg.net\/blog\/wp-content\/uploads\/2018\/04\/pai-do-eletroima-2-300x109.png 300w\" sizes=\"auto, (max-width: 1100px) 100vw, 1100px\" \/><\/p>\n<p><strong>Outros inventos e estudos<\/strong><\/p>\n<p>Em 1832 o f\u00edsico tamb\u00e9m inventou o comutador, parte integrante dos motores el\u00e9tricos mais modernos. Em 1836, ano em que fundou a revista mensal Annals of Electricity, Willian Sturgeon inventou o primeiro galvan\u00f4metro de bobina suspenso, um dispositivo para medir a corrente.<\/p>\n<p>Ele tamb\u00e9m melhorou a bateria voltaica e trabalhou na teoria da termoeletricidade. De mais de 500 observa\u00e7\u00f5es de pipa, estabeleceu que, em climas serenos, a atmosfera \u00e9 invariavelmente carregada positivamente em rela\u00e7\u00e3o \u00e0 Terra, tornando-se mais positiva com o aumento da altitude.<\/p>\n<p><strong>Aplica\u00e7\u00f5es pr\u00e1ticas<\/strong><\/p>\n<p>O eletro\u00edm\u00e3 \u00e9, basicamente, um im\u00e3 obtido por meio de corrente el\u00e9trica, portanto um im\u00e3 n\u00e3o natural. \u00c9 o que faz, por exemplo, o motor el\u00e9trico funcionar, j\u00e1 que sua base \u00e9 composta pela repuls\u00e3o entre dois \u00edm\u00e3s, um natural e o eletro\u00edm\u00e3.<\/p>\n<p>O eletro\u00edm\u00e3 tamb\u00e9m \u00e9 usado em campainhas, telefones, aparelhos de tel\u00e9grafo, rel\u00e9s, alto-falantes, rel\u00f3gios el\u00e9tricos, ventiladores, geladeiras, lavadoras, batedeiras, geradores, chaves autom\u00e1ticas, disjuntores. Guindastes com eletro\u00edm\u00e3s s\u00e3o usados para carregar e descarregar ferro, e para separar o ferro e o a\u00e7o de outros materiais. O eletro\u00edm\u00e3 \u00e9 parte importante de uma infinidade de outros aparelhos, dispositivos e m\u00e1quinas.<\/p>\n<p><a href=\"https:\/\/museuweg.net\/blog\/a-incrivel-transformacao-dos-motores-no-seu-dia-a-dia\/#more-336\">Conhe\u00e7a agora<\/a> outras pesquisas e inventos que, juntos, ajudaram a dar origem ao motor el\u00e9trico.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hoje, em 22 de maio de 1783, nascia no Reino Unido o f\u00edsico Willian Sturgeon. Ele foi o respons\u00e1vel por&#8230;<\/p>\n","protected":false},"author":4,"featured_media":596,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[12,212,211,56,116,9,22,13,213],"class_list":["post-595","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-magnetismo","tag-ciencia","tag-descobrimento","tag-eletroima","tag-historia","tag-invencao","tag-museu","tag-museu-weg","tag-tecnologia","tag-william-sturgeon"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>William Sturgeon: o pai do eletro\u00edm\u00e3 - Blog com Ci\u00eancia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/museuweg.net\/blog\/william-sturgeon-o-pai-do-eletroima\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"William Sturgeon: o pai do eletro\u00edm\u00e3 - Blog com Ci\u00eancia\" \/>\n<meta property=\"og:description\" content=\"Hoje, em 22 de maio de 1783, nascia no Reino Unido o f\u00edsico Willian Sturgeon. 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