{"id":621868,"date":"2026-01-18T21:06:49","date_gmt":"2026-01-18T20:06:49","guid":{"rendered":"https:\/\/cronologia-universale.it\/1902-5\/"},"modified":"2026-01-18T21:06:49","modified_gmt":"2026-01-18T20:06:49","slug":"1889-2","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/1889-2\/","title":{"rendered":"1889"},"content":{"rendered":"<p>Heinrich Hertz accepted the offer of the Rheinish University of Bonn and moved there, occupying the house that once belonged to Rudolf Clausius (the inventor of the Second Law of Thermodynamics). Hertz was already famous, at just over thirty, for having opened a conference of the Berlin Physical Society with the words: &#8220;Gentlemen, I would like to inform you of the most important discovery of the century.&#8221; He was speaking of the association between electricity and light.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Heinrich Hertz accepted the offer of the Rheinish University of Bonn and moved there, occupying&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30],"tags":[],"class_list":["post-621868","post","type-post","status-publish","format-standard","hentry","category-b-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>1889 - Cronologia Universale<\/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:\/\/cronologia-universale.it\/en\/1889-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1889 - 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