{"id":26129,"date":"2012-12-16T16:02:11","date_gmt":"2012-12-16T14:02:11","guid":{"rendered":"http:\/\/www.lovendal.net\/wp52\/?p=26129"},"modified":"2012-12-25T13:03:43","modified_gmt":"2012-12-25T11:03:43","slug":"leonard-euler-genial-matematician-al-omenirii-dar-si-un-om-religios-convins","status":"publish","type":"post","link":"https:\/\/www.lovendal.ro\/wp52\/leonard-euler-genial-matematician-al-omenirii-dar-si-un-om-religios-convins\/","title":{"rendered":"Leonard Euler, genial matematician al omenirii, dar \u015fi un om religios convins"},"content":{"rendered":"<p><a href=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2012\/12\/Euler-20.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-26130\" title=\"Euler 20\" src=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2012\/12\/Euler-20.jpg\" alt=\"\" width=\"302\" height=\"250\" srcset=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2012\/12\/Euler-20.jpg 302w, https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2012\/12\/Euler-20-300x248.jpg 300w, https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2012\/12\/Euler-20-20x17.jpg 20w\" sizes=\"auto, (max-width: 302px) 100vw, 302px\" \/><\/a>Leonard Euler face parte din categoria marilor oameni de \u015ftiin\u0163\u0103 care credeau \u00een Dumnezeu. Astronomia, geometria suprafe\u0163elor, optica, electricitatea \u015fi magnetismul, artileria \u015fi balistica, hidrostatica, iat\u0103 doar c\u00e2teva dintre domeniile abordate de Euler. El a conferit o form\u0103 modern\u0103 legilor lui Newton, metodelor de calcul, trigonometriei \u015fi algebrei. A fost unul dintre cei mai prolifici matematicieni din istorie, autor a peste opt sute cincizeci de articole \u015fi lucr\u0103ri. Randamentul s\u0103u s-a men\u0163inut constant chiar \u015fi dup\u0103 ce a orbit, la o v\u00e2rst\u0103 \u00eenaintat\u0103, iar dup\u0103 moartea sa Academia din Petersburg a continuat s\u0103-i publice articolele vreme de \u00eenc\u0103 o jum\u0103tate de secol.<\/p>\n<p><strong>La 14 ani, Euler studiaz\u0103 teologia \u015fi medicina<\/strong><\/p>\n<p>N\u0103scut la Basel, \u00een Elve\u0163ia, la 15 aprilie 1707, Leonard Euler a fost fiul Margaretei Brucker \u015fi al lui Paul Euler. Tat\u0103l s\u0103u, un pastor calvinist care studiase matematica \u00eempreun\u0103 cu Jacob Bernoulli, a fost \u00een m\u0103sur\u0103 s\u0103 aprecieze talentul matematic al fiului, dar ini\u0163ial se pare c\u0103 \u015fi-ar fi dorit ca acesta s\u0103 urmeze teologia. Oricum, aptitudinile lui Leonhard, inclusiv memoria sa prodigioas\u0103, au devenit \u00een cur\u00e2nd evidente, el \u00eenv\u0103\u0163\u00e2nd algebra \u00eenc\u0103 \u00eenainte de a trece pragul adolescen\u0163ei. La paisprezece ani, \u00een 1720, este admis la Universitatea din Basel, unde studiaz\u0103 medicina, teologia \u015fi \u015ftiin\u0163ele umaniste, ob\u0163in\u00e2nd echivalentul diplomei de licen\u0163\u0103 \u00een 1722 \u015fi diploma de ma\u015fter \u00een filozofie, un an mai t\u00e2rziu. Chiar \u015fi dup\u0103 ce a devenit membru al departamentului de teologie al universit\u0103\u0163ii, el a consacrat, \u00een continuare, mult timp matematicii, iar \u00een final i s-a dedicat \u00een exclusivitate.<\/p>\n<p><strong>Euler se duce \u00een Rusia<\/strong><\/p>\n<p>Familia Euler era \u00een rela\u0163ii amicale cu familia Bernoulli, iar Leonhard \u015fi fiii lui Jean Bernoulli, Daniel \u015fi Nicolas, au devenit prieteni apropia\u0163i. Ambii fra\u0163i Bernoulli au ocupat pozi\u0163ii academice \u00een Rusia, la invita\u0163ia \u00eemp\u0103r\u0103tesei Ecaterina I, \u015fi \u00een 1727 l-au invitat pe Euler s\u0103 li se al\u0103ture la Academia de \u015etiin\u0163e. Ini\u0163ial, ca urmare a mor\u0163ii \u00eemp\u0103r\u0103tesei Ecaterina \u00een cursul acelui an, situa\u0163ia lui Euler a fost neclar\u0103; dar \u00een 1730 i s-a \u00eencredin\u0163at postul de profesor de fizic\u0103, apoi acela de profesor de matematic\u0103, trei ani mai t\u00e2rziu. \u00cen plus, a luat parte la reforma ruseasc\u0103 a unit\u0103\u0163ilor de m\u0103sur\u0103, a condus departamentul de geografie \u015fi chiar a scris manuale de matematic\u0103 elementar\u0103.<\/p>\n<p><strong>La 29 de ani, Euler public\u0103 un prestigios tratat de mecanic\u0103<\/strong><\/p>\n<p>Odat\u0103 cu publicarea lucr\u0103rii lui Newton, <em>&#8222;Principia Mathematica&#8221;<\/em> \u00een 1687, posibilit\u0103\u0163ile matematicii s-au extins considerabil, \u00een anii &#8217;30 ai secolului al XVIII-lea, cu sprijinul lui Bernoulli, Euler a revizuit limbajul matematic \u015fi nota\u0163iile lui Newton, a introdus c\u00e2teva dintre simbolurile algebrice cunoscute \u015fi a dezvoltat o serie de teoreme \u00een geometrie \u015fi trigonometrie. Tratatul s\u0103u din 1736,<em> Mechanica<\/em>, a eviden\u0163iat statutul \u00eenfloritor al fizicii newtoniene \u00een reprezentare matematic\u0103, conferind mecanicii caracterul universal pe care p\u00e2n\u0103 atunci \u00eel avea mai mult \u00een principiu.<\/p>\n<p><strong>Alte lucr\u0103ri prestigioase de matematic\u0103<\/strong><\/p>\n<p>\u00cen 1741 Euler p\u0103r\u0103se\u015fte Rusia spre a deveni profesor de matematic\u0103 la Academia de \u015etiin\u0163e din Berlin \u015fi pentru a-\u015fi ocupa locul la curtea noului rege al Prusiei, Frederick al II-lea. Aici, Euler se bucur\u0103 de faim\u0103 \u015fi prosperitate, ajung\u00e2nd proprietarul unei case \u00een Berlin \u015fi a unei ferme la marginea ora\u015fului. Tratatul s\u0103u asupra calculului varia\u0163iilor a ap\u0103rut \u00een 1744, iar lucrarea <em>Introductio in analysis infinitorum<\/em>, tip\u0103rit\u0103 \u00een 1748, este o introducere \u00een matematica pur\u0103 \u00een care Euler trateaz\u0103 algebra, teoria ecua\u0163iilor, trigonometria \u015fi geometria analitic\u0103. Euler a publicat, de asemenea, primele dou\u0103 tratate complete de calcul infinitezimal: <em>Institutiones calculi differentialis<\/em> \u00een 1755 \u015fi <em>Institutiones calculi integralis<\/em> \u00een 1768. Perioada petrecut\u0103 la Berlin a fost deosebit de fertil\u0103, elocvente \u00een acest sens fiind cele aproape dou\u0103 sute \u015faptezeci \u015fi cinci de lucr\u0103ri tip\u0103rite.<\/p>\n<p>De\u015fi Frederick cel Mare a apelat de multe ori la Euler pentru a rezolva unele probleme de inginerie sau de finan\u0163e, acesta nu era o figur\u0103 popular\u0103 la Curte. Frederick nu \u00een\u0163elegea nimic din matematic\u0103, \u015fi \u00een cele din urm\u0103 rela\u0163iile lor s-au r\u0103cit. Din aceea\u015fi perioad\u0103 dateaz\u0103<em> Scrisori c\u0103tre o principes\u0103 german\u0103<\/em>, care cuprinde lec\u0163ii de \u015ftiin\u0163e naturale pentru principesa de Anhalt-Dessau. Aceast\u0103 lucrare s-a bucurat de un mare succes la public \u015fi a fost tradus\u0103 \u015fi reeditat\u0103 adesea pe parcursul secolului al XIX-lea.<\/p>\n<p><strong>Re\u00eentoarcerea \u00een Rusia..Euler lucra chiar dac\u0103 era aproape orb!<\/strong><\/p>\n<p>\u00cen 1766, Euler a acceptat oferta \u00eemp\u0103r\u0103tesei Ecaterina cea Mare -adept\u0103 a Iluminismului, venit\u0103 la putere \u00een urm\u0103 cu patru ani -, de a se \u00eentoarce \u00een Rusia. Primit cu onoruri, el a continuat s\u0103 lucreze, de\u015fi vederea \u00eei sl\u0103bise; i-a \u00eens\u0103rcinat pe fiii s\u0103i s\u0103 \u00eel ajute la transcrierea ecua\u0163iilor lungi pe care memoria lui prodigioas\u0103 le re\u0163inuse. Nici alte obstacole nu l-au \u00eempiedicat s\u0103 lucreze la o v\u00e2rst\u0103 \u00eenaintat\u0103. De\u015fi casa i-a ars \u00eentr-un incendiu, manuscrisele sale au fost salvate; la un moment dat, eforturile medicilor de a-i reda vederea p\u0103reau \u00eencununate de succes, dar p\u00e2n\u0103 la urm\u0103 a orbit definitiv. Euler a murit \u00een urma unui atac cerebral pe 18 septembrie 1783, dup\u0103 ce \u00ee\u015fi petrecuse ziua calcul\u00e2nd orbita planetei Uranus care tocmai fusese descoperit\u0103 de William Herschel (cite\u015fte mai multe aici:<a href=\"https:\/\/www.lovendal.ro\/wp52\/william-herschel-printul-astronomiei-sau-incredibila-viata-a-descoperitorului-planetei-uranus\/\" target=\"_blank\"><strong> https:\/\/www.lovendal.ro\/wp52\/william-herschel-printul-astronomiei-sau-incredibila-viata-a-descoperitorului-planetei-uranus\/<\/strong><\/a>). Ultimele sale cuvinte, \u00een timp ce se juca cu unul dintre nepo\u0163ii s\u0103i, au fost \u201eEu mor&#8221;.<\/p>\n<p><strong>Euler, un religios convins<\/strong><\/p>\n<p>Calvinist convins, Euler citea \u00een fiecare sear\u0103 c\u00e2te un capitol din Biblie numeroasei sale familii. N-a renun\u0163at nicio clip\u0103 la concep\u0163iile sale burgheze, ar\u0103t\u00e2ndu-se total nereceptiv la ideile revolu\u0163ionare ale unor g\u00e2nditori ilumini\u015fti ca Voltaire. \u00cen 1833, Sir David Brewster scria despre Euler:<em> \u201e\u00cen privin\u0163a obiceiurilor era sobru \u015fi temperat, dar \u00een acela\u015fi timp plin de via\u0163\u0103 \u015fi agreabil. Iar caracterul s\u0103u moral \u015fi religios este de admirat.&#8221;<\/em> Dup\u0103 moartea primei sale so\u0163ii, Katharina Gsell, \u00een 1776, cu care a tr\u0103it ani mul\u0163i \u015fi ferici\u0163i, Euler \u015fi-a revenit cur\u00e2nd \u015fi s-a c\u0103s\u0103torit cu sora ei vitreg\u0103, Salome.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Leonard Euler face parte din categoria marilor oameni de \u015ftiin\u0163\u0103 care credeau \u00een Dumnezeu. Astronomia, geometria suprafe\u0163elor, optica, electricitatea \u015fi magnetismul, artileria \u015fi balistica, hidrostatica, iat\u0103 doar c\u00e2teva dintre domeniile abordate de Euler. El a conferit o form\u0103 modern\u0103 legilor &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Leonard Euler, genial matematician al omenirii, dar \u015fi un om religios convins\" class=\"read-more button\" href=\"https:\/\/www.lovendal.ro\/wp52\/leonard-euler-genial-matematician-al-omenirii-dar-si-un-om-religios-convins\/#more-26129\" aria-label=\"Cite\u0219te mai multe despre Leonard Euler, genial matematician al omenirii, dar \u015fi un om religios convins\">Cititi mai multe<\/a><\/p>\n","protected":false},"author":1,"featured_media":26130,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[106],"tags":[2902,60,3839,1945,1079,113,2993,1502,3789,1751,1893,1822,1722,679,9794,808,1805,331,453,48,9803,5888,5889,2250,2849],"class_list":["post-26129","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-stiinta","tag-basel","tag-biblie","tag-calvinism","tag-casatorie","tag-ecaterina-cea-mare","tag-elvetia","tag-euler","tag-filosofie","tag-frederick-cel-mare","tag-geometrie","tag-herschel","tag-imparateasa","tag-matematica","tag-matematician","tag-medicina","tag-newton","tag-orb","tag-prusia","tag-rege","tag-rusia","tag-stiinta","tag-teologie","tag-trigonometrie","tag-universitate","tag-uranus","resize-featured-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.3 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Leonard Euler, genial matematician al omenirii, dar \u015fi un om religios convins - Secretele lui Lovendal<\/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:\/\/www.lovendal.ro\/wp52\/leonard-euler-genial-matematician-al-omenirii-dar-si-un-om-religios-convins\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Leonard Euler, genial matematician al omenirii, dar \u015fi un om religios convins\" \/>\n<meta property=\"og:description\" content=\"Leonard Euler face parte din categoria marilor oameni de \u015ftiin\u0163\u0103 care credeau \u00een Dumnezeu. 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