{"id":1592,"date":"2026-03-30T17:49:13","date_gmt":"2026-03-30T17:49:13","guid":{"rendered":"https:\/\/www.victorfhess.org\/?p=1592"},"modified":"2026-06-17T15:15:12","modified_gmt":"2026-06-17T15:15:12","slug":"12-06-2026","status":"publish","type":"post","link":"https:\/\/www.victorfhess.org\/en\/12-06-2026\/","title":{"rendered":"12.06.2026"},"content":{"rendered":"

A revolution in the International System of Units: Physical constants take center stage.<\/a><\/p>\n\n\n\n

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P\u00f6llau Castle, Great Fresco Hall, 2nd floor
Time: 5.00 pm<\/p>\n\n\n\n

Dr. Christof Gaiser
German National Metrology Institute, Berlin, Germany<\/p>\n\n\n\n

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Over 100 years ago, Max Planck had a dream; he proposed basing units on fundamental constants which, as he wrote, \u201cmust necessarily retain their validity for all cultures, including extraterrestrial and non-human ones\u201d<\/em>. With the redefinition of the base units kilogram, mole, ampere and kelvin, this idea was fully realised on 20 May 2019. This presentation describes the long journey to achieve this goal and the pivotal role played by the great Austrian physicist Ludwig Boltzmann, as well as the experiments required to determine the fundamental constants.<\/p>\n<\/div>\n\n\n\n

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Public lecture, followed by the opening of the newly established SI Room at the Echophysics Museum.<\/p>\n\n\n\n

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Due to the high interest we ask for reservation:
https:\/\/reservation.ticketleo.com\/event\/35883\/dr-christof-gaiser-revolution-im-einheitensystem<\/a><\/p>\n\n\n\n

The International System of Units (SI), established in 1960, is the most widely used system of physical units worldwide. It is based on seven base units (metre, kilogram, second, ampere, kelvin, mole, candela), which utilise precise, unchanging physical constants to standardise measurements in science, industry and everyday life.<\/p>\n\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

Revolution im Einheitensystem: Naturkonstanten spielen die Hauptrolle. Ort: Schloss P\u00f6llau, Gro\u00dfer Freskensaal, 2. StockBeginn: 17 Uhr Dr. Christof GaiserPhysikalisch-Technische Bundesanstalt, Berlin, Deutschland Vor \u00fcber 100 Jahren hatte Max Planck einen Traum, er machte den Vorschlag, die Einheiten auf Naturkonstanten aufzubauen, die wie er schrieb, \u201c ihre G\u00fcltigkeit f\u00fcr alle auch au\u00dferirdische und au\u00dfermenschliche Culturen notwendig… Read More »12.06.2026<\/span><\/a><\/p>","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[7,6],"tags":[],"class_list":["post-1592","post","type-post","status-publish","format-standard","hentry","category-aktuell-vorschau","category-veranstaltungen"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false,"neve-blog":false},"uagb_author_info":{"display_name":"Sonja Draxler","author_link":"https:\/\/www.victorfhess.org\/en\/author\/sonja-draxler\/"},"uagb_comment_info":0,"uagb_excerpt":"Revolution im Einheitensystem: Naturkonstanten spielen die Hauptrolle. Ort: Schloss P\u00f6llau, Gro\u00dfer Freskensaal, 2. StockBeginn: 17 Uhr Dr. Christof GaiserPhysikalisch-Technische Bundesanstalt, Berlin, Deutschland Vor \u00fcber 100 Jahren hatte Max Planck einen Traum, er machte den Vorschlag, die Einheiten auf Naturkonstanten aufzubauen, die wie er schrieb, \u201c ihre G\u00fcltigkeit f\u00fcr alle auch au\u00dferirdische und au\u00dfermenschliche Culturen notwendig… Read…","_links":{"self":[{"href":"https:\/\/www.victorfhess.org\/en\/wp-json\/wp\/v2\/posts\/1592","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.victorfhess.org\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.victorfhess.org\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.victorfhess.org\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.victorfhess.org\/en\/wp-json\/wp\/v2\/comments?post=1592"}],"version-history":[{"count":8,"href":"https:\/\/www.victorfhess.org\/en\/wp-json\/wp\/v2\/posts\/1592\/revisions"}],"predecessor-version":[{"id":1665,"href":"https:\/\/www.victorfhess.org\/en\/wp-json\/wp\/v2\/posts\/1592\/revisions\/1665"}],"wp:attachment":[{"href":"https:\/\/www.victorfhess.org\/en\/wp-json\/wp\/v2\/media?parent=1592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.victorfhess.org\/en\/wp-json\/wp\/v2\/categories?post=1592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.victorfhess.org\/en\/wp-json\/wp\/v2\/tags?post=1592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}