b'\n_START_ARTICLE_\nJulius Pl\xc3\xbccker\n_START_SECTION_\nBiografie\n_START_PARAGRAPH_\nS-a n\xc4\x83scut la Elberfeld. A studiat la D\xc3\xbcsseldorf, apoi la universit\xc4\x83\xc8\x9bile de la Bonn, Heidelberg, Berlin, urm\xc3\xa2nd ca \xc3\xaen 1823 s\xc4\x83 mearg\xc4\x83 la Paris. Acolo intr\xc4\x83 \xc3\xaen marea \xc8\x99coal\xc4\x83 de geometri francez\xc4\x83, fondat\xc4\x83 de Gaspard Monge._NEWLINE_L-a avut ca \xc3\xaendrum\xc4\x83tor de doctorat pe Christian Ludwig Gerling._NEWLINE_\xc3\x8en 1825 se \xc3\xaentoarce la Bonn, iar \xc3\xaen 1828 devine profesor de matematic\xc4\x83._NEWLINE_\xc3\x8en 1832 activeaz\xc4\x83 la Friedrich-Wilhelms-Gymnasium \xc3\xaen Berlin, iar \xc3\xaen anul urm\xc4\x83tor intr\xc4\x83 ca profesor la Halle (Saale)._NEWLINE_\xc3\x8en 1847 devine profesor de fizic\xc4\x83 la Bonn unde r\xc4\x83m\xc3\xa2ne p\xc3\xa2n\xc4\x83 la sf\xc3\xa2r\xc8\x99itul vie\xc8\x9bii. \xc3\x8en perioada 1866 - 1868, \xc3\xael are ca asistent pe str\xc4\x83lucitul matematician Felix Klein.\n_START_SECTION_\nOpera\n_START_PARAGRAPH_\n\xc3\x8en 1828 public\xc4\x83 primul volum din Analytisch-geometrische Entwickelungen, \xc3\xaen care introduce metoda nota\xc8\x9biilor simplificate. \xc3\x8en al doilea volum, ap\xc4\x83rut \xc3\xaen 1831, pune bazele teoriei dualit\xc4\x83\xc8\x9bii proiective._NEWLINE_\xc3\x8en 1858 public\xc4\x83 descrierea primelor sale cercet\xc4\x83ri privind ac\xc8\x9biunea c\xc3\xa2mpului magnetic asupra desc\xc4\x83rc\xc4\x83rii electrice \xc3\xaen gaze rarefiate.\n_START_SECTION_\nApreciere\n_START_PARAGRAPH_\nCa apreciere a operei \xc8\x99i meritelor sale, \xc3\xaen 1866 i se confer\xc4\x83 Medalia Copley din partea Royal Society.'