{"id":7777,"date":"2020-08-15T09:22:54","date_gmt":"2020-08-15T09:22:54","guid":{"rendered":"https:\/\/wp.rinconeducativo.org\/?event=15-de-agosto-de-1994-el-national-institute-standards-and-technology-nist-de-estados-unidos"},"modified":"2024-07-29T13:53:16","modified_gmt":"2024-07-29T11:53:16","slug":"15-agosto-1994-national-institute-standards-technology-record-temperatura-bajo-cero","status":"publish","type":"re_efemeride","link":"https:\/\/rinconeducativo.org\/es\/efemerides\/15-agosto-1994-national-institute-standards-technology-record-temperatura-bajo-cero\/","title":{"rendered":"15 de agosto de 1994 - El National Institute of Standards and Technology (NIST) de Estados Unidos logra el r\u00e9cord de temperatura bajo cero"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignleft\"><img loading=\"lazy\" decoding=\"async\" width=\"369\" height=\"303\" src=\"https:\/\/wp2.rinconeducativo.org\/wp-content\/uploads\/2020\/08\/celsius-y-kelvin.png\" alt=\"\" class=\"wp-image-17468\"\/><\/figure>\n<\/div>\n\n\n<p>El <em>National Institute of Standards and Technology<\/em> (NIST) de Estados Unidos consigue enfriar \u00e1tomos hasta alcanzar los 700 nanokelvins, esto es 700.000 millones de veces menos que un grado por encima del cero absoluto, que se sit\u00faa en los -273,15 grados cent\u00edgrados.<\/p>\n\n\n\n<p>La misi\u00f3n de este instituto es promover la innovaci\u00f3n y competencia industrial en Estados Unidos mediante avances en metrolog\u00eda, normas y tecnolog\u00eda de forma que mejoren la estabilidad econ\u00f3mica y la calidad de vida por lo que su hallazgo ha permitido mejorar la industria de los semiconductores, algunos procesos litogr\u00e1ficos y la tecnolog\u00eda de los relojes at\u00f3micos.<\/p>\n\n\n\n<p>La escala Celsius o cent\u00edgrada (\u00b0C) es una de las m\u00e1s conocidas y utilizadas, y considera el cero (0\u00b0C) como el punto de congelaci\u00f3n del agua y 100\u00b0C como el de ebullici\u00f3n, es decir hay 100 divisiones que separan ambos puntos.<\/p>\n\n\n\n<p>La escala Kelvin mide la temperatura termodin\u00e1mica, esto es la medici\u00f3n de la temperatura absoluta de un objeto. Propone un modelo sin valores negativos, en el que el cero corresponde con el cero absoluto, es decir, no habr\u00e1 nada que pudiera estar m\u00e1s \u201cfr\u00edo\u201d que esto, aunque en realidad no se habla de fr\u00edo o calor, sino de ausencia o no de energ\u00eda termodin\u00e1mica, por lo que el r\u00e9cord logrado por el NIST ha sido considerado todo un hito.<\/p>\n\n\n\n<p>Para hacerse una idea m\u00e1s clara, la relaci\u00f3n entre ambas escalas es:<\/p>\n\n\n\n<p>Grados Celsius = Grados Kelvin \u2013 273,15<\/p>\n\n\n\n<p>Lo cierto es que en nuestra vida diaria rara vez vamos a utilizar la escala Kelvin, pero en el \u00e1mbito cient\u00edfico o fotogr\u00e1fico es la m\u00e1s usada.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>15 de agosto de 1994 - El National Institute of Standards and Technology (NIST) de Estados Unidos logra el r\u00e9cord de temperatura bajo cero.<\/p>\n","protected":false},"author":1088,"featured_media":17468,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[6114],"mes":[7119],"clasificacion_anterior":[],"class_list":["post-7777","re_efemeride","type-re_efemeride","status-publish","has-post-thumbnail","hentry","tag-ciencia","mes-agosto"],"acf":{"fecha":"19940815"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - 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