{"id":155812,"date":"2024-11-22T17:04:27","date_gmt":"2024-11-22T17:04:27","guid":{"rendered":"https:\/\/raed.academy\/?p=155812"},"modified":"2024-11-22T17:04:27","modified_gmt":"2024-11-22T17:04:27","slug":"espanya-i-el-sistema-metric-decimal","status":"publish","type":"post","link":"https:\/\/raed.academy\/ca\/espanya-i-el-sistema-metric-decimal\/","title":{"rendered":"Espanya i el sistema m\u00e8tric decimal"},"content":{"rendered":"<div id=\"attachment_123006\" style=\"width: 510px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-123006\" class=\"wp-image-123006 size-full\" src=\"https:\/\/raed.academy\/wp-content\/uploads\/2022\/10\/Francisco-Gonzalez-de-Posada.webp\" alt=\"Francisco Gonz\u00e1lez de Posada\" width=\"500\" height=\"300\" srcset=\"https:\/\/raed.academy\/wp-content\/uploads\/2022\/10\/Francisco-Gonzalez-de-Posada.webp 500w, https:\/\/raed.academy\/wp-content\/uploads\/2022\/10\/Francisco-Gonzalez-de-Posada-440x264.webp 440w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><p id=\"caption-attachment-123006\" class=\"wp-caption-text\">Dr. Francisco Gonz\u00e1lez de Posada<\/p><\/div>\n<p><a href=\"https:\/\/raed.academy\/ca\/academics\/dr-francisco-gonzalez-de-posada\/\" target=\"_blank\" rel=\"noopener\"><em><strong>Francisco Gonz\u00e1lez de Posada<\/strong><\/em><\/a>, catedr\u00e0tic de Fonaments F\u00edsics de la <strong>Universitat Polit\u00e8cnica de Madrid<\/strong>, president de l&#8217;<strong>Acad\u00e8mia de Ci\u00e8ncies, Enginyeries i Humanitats de Lanzarote<\/strong>\u00a0i acad\u00e8mic d&#8217;honor de la <strong>Reial Acad\u00e8mia Europea de Doctors-Barcelona 1914<\/strong> (RAED), va pronunciar el passat 12 de novembre a la seu madrilenya de l&#8217;<strong>Institut de l&#8217;Enginyeria d&#8217;Espanya<\/strong> la confer\u00e8ncia <strong>&#8220;Manifestaci\u00f3n de la fe en el metro: su (supuesto) car\u00e1cter natural y su (establecida) condici\u00f3n de \u00fanica unidad fundamental de pesas y medidas&#8221;<\/strong> en una sessi\u00f3 organitzada pel <strong>Comit\u00e8 de Metrologia<\/strong> d&#8217;aquest organisme i celebrada amb motiu del 172\u00e8. aniversari de la legislaci\u00f3 de peses i mesures del sistema m\u00e8tric decimal, aprovada el 19 de juliol del 1849.<\/p>\n<p style=\"text-align: left;\">L&#8217;acad\u00e8mic va iniciar la seva dissertaci\u00f3 explicant el contingut del text legal que va acabar amb una infinitat de sistemes de mesura i pes. &#8220;En tots els dominis espanyols hi haur\u00e0 un \u00fanic sistema de mitjana i pes&#8221;, assenyalava concretament l&#8217;enunciat legislatiu, que definia el metro i assenyalava com en sortirien la resta d&#8217;unitats de mesura. &#8220;El patr\u00f3 d&#8217;aquest metro, fet de platina, que es guarda al <strong>Conservatori d&#8217;Arts<\/strong>, i que va ser calculat pel senyor <strong>Gabriel C\u00edscar<\/strong>, i constru\u00eft i ajustat per ell mateix i el senyor <strong>Agust\u00edn Pedrayes<\/strong>, es declara patr\u00f3 prototip i legal, i segons ell s&#8217;ajustaran totes les mesures del Regne&#8221;, seguia el text. Una fita a qu\u00e8 Gonz\u00e1lez de Posada va anteposar dos importants antecedents: les expedicions geod\u00e8siques de l&#8217;<strong>Acad\u00e8mia de Ci\u00e8ncies de Fran\u00e7a<\/strong> a l&#8217;Equador i a Lap\u00f2nia, aix\u00ed com per al mesurament del gran arc de meridi\u00e0 entre Dunkerque i Barcelona.<\/p>\n<p>El c\u00e0lcul del metro com la deumilion\u00e8sima part d&#8217;un quadrant del meridi\u00e0 terrestre va ser, de fet, el resultat dels mesuraments duts a terme inicialment per aquests expedicionaris. L&#8217;acad\u00e8mic va incidir especialment en la figura de C\u00edscar, autor de les obres <strong>&#8220;Memoria elemental sobre los nuevos pesos y medidas fundados en la naturaleza&#8221;<\/strong>, del 1800, i <strong>&#8220;Apuntes sobre medidas, pesos y monedas, que pueden considerarse como una segunda parte de la &#8216;Memoria Elemental'&#8221;<\/strong>, que van apar\u00e8ixer dues d\u00e8cades despr\u00e9s i que s&#8217;han reeditat ara en una edici\u00f3 cr\u00edtica elaborada pel mateix Gonz\u00e1lez de Posada. En un per\u00edode de convulsi\u00f3 a Espanya entre la Guerra d&#8217;Independ\u00e8ncia i la tornada del rei<strong> Ferran VII<\/strong> al tron \u200b\u200bespanyol, C\u00edscar va protagonitzar l&#8217;actualitat pol\u00edtica com a regent i l\u00edder del liberalisme i el nacionalisme il\u00b7lustrat fins que es va haver d&#8217;exiliar Gibraltar i posar-se sota la protecci\u00f3 d&#8217;<strong>Arthur Wellesley<\/strong>, duc de Wellington, quan ja era un cient\u00edfic reconegut.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-155804 alignleft\" src=\"https:\/\/raed.academy\/wp-content\/uploads\/2024\/11\/sistema-metrico-decimal-metro-dst.webp\" sizes=\"auto, (max-width: 443px) 100vw, 443px\" srcset=\"https:\/\/raed.academy\/wp-content\/uploads\/2024\/11\/sistema-metrico-decimal-metro-dst.webp 600w, https:\/\/raed.academy\/wp-content\/uploads\/2024\/11\/sistema-metrico-decimal-metro-dst-440x264.webp 440w\" alt=\"\" width=\"443\" height=\"266\" \/>A la definici\u00f3 posterior del metro tamb\u00e9 van tenir un lloc destacat altres espanyols com<strong> Ib\u00e1\u00f1ez de Ibero<\/strong>, com reflecteix l&#8217;obra <strong>&#8220;Resumen de los trabajos preparatorios de la comisi\u00f3n internacional para la realizaci\u00f3n de los prototipos internacionales y la creaci\u00f3n de la Oficina Internacional de Pesas y Medidas (1871-1872)&#8221;<\/strong>, en edici\u00f3 del<strong> Centre Espanyol de Metrologia<\/strong>, l&#8217;<strong>Institut Geogr\u00e0fic Nacional<\/strong> i l&#8217;<strong>Institut de l&#8217;Enginyeria d&#8217;Espanya<\/strong>.<\/p>\n<p>Gonz\u00e1lez de Posada \u00e9s enginyer i doctor de Camins, Canals i Ports per la Universitat Polit\u00e8cnica de Madrid, llicenciat en Filosofia i Lletres per la <strong>Universitat Pontif\u00edcia de Salamanca<\/strong> i llicenciat en Ci\u00e8ncies F\u00edsiques per la Universitat Complutense de Madrid. Posse\u00efdor ja de nou doctorats, ha impulsat i dirigit nombrosos projectes i estudis de diverses branques del saber. Va ser reconegut amb la Medalla d&#8217;Honor al Foment de la Invenci\u00f3.<\/p>\n<p>\u00c9s acad\u00e8mic de n\u00famero de la<strong> Reial Acad\u00e8mia Nacional de Medicina d&#8217;Espanya<\/strong>, de la <strong>Reial Acad\u00e8mia de Doctors d&#8217;Espanya<\/strong> i membre de l&#8217;<strong>Acad\u00e8mia Mundial d&#8217;Arts i Ci\u00e8ncies<\/strong>, acad\u00e8mic corresponent de la<strong> Reial Acad\u00e8mia de Belles Arts de Cadis<\/strong>, de la <strong>Reial Acad\u00e8mia de Belles Arts de San Fernando<\/strong>\u00a0i la <strong>Reial Acad\u00e8mia de Ci\u00e8ncies, Belles Arts i Bones Lletres d&#8217;\u00c8cija<\/strong> i acad\u00e8mic d&#8217;honor de l&#8217;<strong>Acad\u00e8mia de Ci\u00e8ncies M\u00e8diques de Cant\u00e0bria<\/strong>, de la <strong>Reial Acad\u00e8mia de Cultura Valenciana<\/strong>, de la <strong>Reial Acad\u00e8mia de Medicina i Cirurgia de Cadis<\/strong> i de la <strong>Reial Acad\u00e8mia de Medicina de Can\u00e0ries<\/strong>.<\/p>\n<p><iframe loading=\"lazy\" title=\"2024-11-12 Sistema M\u00e9trico Decimal. Un cambio cultural y un reto pol\u00edtico del siglo XIX\" width=\"1080\" height=\"608\" src=\"https:\/\/www.youtube.com\/embed\/i4loIhwYL94?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Francisco Gonz\u00e1lez de Posada pronuncia la confer\u00e8ncia &#8220;Manifestaci\u00f3n de la fe en el metro: su (supuesto) car\u00e1cter natural y su (establecida) condici\u00f3n de \u00fanica unidad fundamental de pesas y medidas&#8221;,  a la seu madrilenya de l&#8217;Institut de l&#8217;Enginyeria d&#8217;Espanya<\/p>\n","protected":false},"author":12,"featured_media":155805,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[242,404,492],"tags":[],"class_list":["post-155812","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-categ-historia","category-historia-nacional-ca","category-trobades-cientifiques-i-congressos","et-has-post-format-content","et_post_format-et-post-format-standard"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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