{"id":69536,"date":"2026-11-14T04:40:11","date_gmt":"2026-11-13T19:40:11","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=69536"},"modified":"2026-11-14T04:40:11","modified_gmt":"2026-11-13T19:40:11","slug":"el-papel-rojo-se-vuelve-azul-en-un-instante-el-secador-de-pelo-revela-el-secreto-de-la-humedad-invisible","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=69536&lang=es","title":{"rendered":"\u00a1El papel rojo se vuelve azul en un instante! El secador de pelo revela el secreto de la \u201chumedad invisible\u201d"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>Soy Ken Kuwako, entrenador de ciencia. Para m\u00ed, cada d\u00eda es un experimento.<\/strong><\/span><\/p>\n<p>\u00bfAlguna vez has notado que el papel de cloruro de cobalto que guardas en el estante del laboratorio, sin que te des cuenta, se ha vuelto rosado o blanquecino? Pues bien, basta con darle un poco de aire con un secador de pelo para que, en un abrir y cerrar de ojos, recupere su vivo color azul. Y lo mejor es que puedes repetir el truco todas las veces que quieras. Hoy te cuento la historia de este papel curioso que convierte la &#8220;humedad&#8221; invisible en color.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-69479 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-11-10.18.20.jpeg\" alt=\"\" width=\"476\" height=\"306\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-11-10.18.20.jpeg 1528w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-11-10.18.20-300x193.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-11-10.18.20-1024x658.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-11-10.18.20-768x494.jpeg 768w\" sizes=\"auto, (max-width: 476px) 100vw, 476px\" \/><\/p>\n<h3>El papel de cloruro de cobalto, un &#8220;detector de agua&#8221;<\/h3>\n<p>El papel de cloruro de cobalto es un papel reactivo que sirve para comprobar si hay agua. Cuando absorbe agua, pasa de azul a rosado (un tono rojizo), y por eso en los experimentos de ciencias de secundaria se usa mucho para confirmar que se ha formado agua al quemar o calentar una sustancia.<\/p>\n<p>El problema es que el papel que se guarda en el laboratorio, aunque no se use, suele absorber la humedad del aire y volverse rosado o blanquecino. Si la humedad de la sala es alta, el papel va chupando poco a poco el agua del ambiente.<\/p>\n<h3>Con el secador, de rojo a azul<\/h3>\n<p>Por eso, antes del experimento, vamos a pasarle el aire del secador al papel. Ver\u00e1s que el papel rojo se vuelve azul en un instante. Esto significa que el agua que ten\u00eda el papel se ha evaporado y se ha secado.<\/p>\n<p><iframe loading=\"lazy\" title=\"\u6e7f\u6c17\u3092\u5438\u3063\u3066\u8d64\u304f\u306a\u3063\u3066\u3044\u308b\u5869\u5316\u30b3\u30cf\u3099\u30eb\u30c8\u7d19\u306b\u30c9\u30e9\u30a4\u30a2\u30fc\u3092\u5f53\u3066\u3066\u307f\u308b\u3068\u2026\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/QlvVzqpv-BM?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<p>La humedad que normalmente no vemos estaba, en realidad, pegada con fuerza al papel en forma de diminutas gotitas de agua (mol\u00e9culas de agua), y el cambio de color lo deja clar\u00edsimo. Cada vez que lo veo pienso: &#8220;\u00a1Mira cu\u00e1nta agua hab\u00eda en el aire!&#8221;, y siempre me divierte.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-69487 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.59.jpeg\" alt=\"\" width=\"415\" height=\"210\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.59.jpeg 1162w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.59-300x152.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.59-1024x518.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.59-768x389.jpeg 768w\" sizes=\"auto, (max-width: 415px) 100vw, 415px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-69485 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.46.jpeg\" alt=\"\" width=\"423\" height=\"262\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.46.jpeg 1298w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.46-300x186.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.46-1024x634.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.46-768x476.jpeg 768w\" sizes=\"auto, (max-width: 423px) 100vw, 423px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-69486 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.51.jpeg\" alt=\"\" width=\"418\" height=\"260\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.51.jpeg 1384w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.51-300x187.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.51-1024x638.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.51-768x478.jpeg 768w\" sizes=\"auto, (max-width: 418px) 100vw, 418px\" \/><\/p>\n<h3>\u00bfPor qu\u00e9 cambia de color?<\/h3>\n<p>El secreto del cambio de color est\u00e1 en cu\u00e1ntas mol\u00e9culas de agua rodean al cobalto. Cuando el papel contiene agua, muchas mol\u00e9culas de agua se agrupan alrededor del cobalto, y esa forma se ve de color rosado. Cuando el secador se lleva las mol\u00e9culas de agua, en su lugar se juntan iones cloruro alrededor del cobalto, formando otra estructura distinta, que se ve azul.<\/p>\n<p>Es decir, el color que vemos depende de si lo que rodea al cobalto son mol\u00e9culas de agua o iones cloruro. Si lo humedeces, vuelve al rosado; si lo secas, vuelve al azul. Por eso se puede usar una y otra vez.<\/p>\n<h3>Tambi\u00e9n tiene &#8220;parientes&#8221; a tu alrededor<\/h3>\n<p>Esta propiedad se aprovecha desde hace mucho tiempo en todo tipo de lugares. Por ejemplo, el gel de s\u00edlice, ese desecante que viene en bolsitas dentro de los dulces o las algas nori, ten\u00eda una variante que pasaba de azul a rosado para que pudieras saber, solo con mirarlo, si ya hab\u00eda absorbido humedad.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-35278 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/198815f752d5b0086802b83c05469d1c.jpg\" sizes=\"auto, (max-width: 319px) 100vw, 319px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/198815f752d5b0086802b83c05469d1c.jpg 878w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/198815f752d5b0086802b83c05469d1c-221x300.jpg 221w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/198815f752d5b0086802b83c05469d1c-754x1024.jpg 754w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/198815f752d5b0086802b83c05469d1c-768x1043.jpg 768w\" alt=\"\" width=\"319\" height=\"433\" \/><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"U6I8M8Kueu\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=35271\">\u300e\u98df\u3079\u3089\u308c\u307e\u305b\u3093\u300f\u306e\u888b\u306b\u3001\u5316\u5b66\u30bb\u30f3\u30b5\u30fc\u304c\u5165\u3063\u3066\u3044\u305f\u3002\u30b7\u30ea\u30ab\u30b2\u30eb\u306e\u8272\u304c\u5909\u308f\u308b\u7406\u7531<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201c\u300e\u98df\u3079\u3089\u308c\u307e\u305b\u3093\u300f\u306e\u888b\u306b\u3001\u5316\u5b66\u30bb\u30f3\u30b5\u30fc\u304c\u5165\u3063\u3066\u3044\u305f\u3002\u30b7\u30ea\u30ab\u30b2\u30eb\u306e\u8272\u304c\u5909\u308f\u308b\u7406\u7531\u201d \u2014 \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=35271&amp;embed=true#?secret=i5ydWsL4zQ#?secret=U6I8M8Kueu\" data-secret=\"U6I8M8Kueu\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>Adem\u00e1s, los &#8220;objetos del tiempo&#8221; que cambian de color seg\u00fan la humedad tambi\u00e9n han usado el mismo mecanismo.<\/p>\n<p>Eso s\u00ed, se ha se\u00f1alado que el cloruro de cobalto puede ser nocivo para la salud, y por eso \u00faltimamente cada vez hay m\u00e1s productos que lo sustituyen por otros indicadores sin cobalto.<\/p>\n<h3>Consejos para el experimento<\/h3>\n<p>Cuando uses el papel de cloruro de cobalto, ten en cuenta lo siguiente:<\/p>\n<ul>\n<li>Antes del experimento, s\u00e9calo un poco con el secador hasta que se ponga azul y \u00fasalo entonces.<\/li>\n<li>Mant\u00e9n el secador algo alejado para no quemar el papel.<\/li>\n<\/ul>\n<p>La humedad invisible se hace visible en el cambio entre el azul y el rosado. El papel de cloruro de cobalto es una peque\u00f1a herramienta de laboratorio que nos descubre cosas asombrosas. Ver c\u00f3mo un papel rojo se vuelve azul en el laboratorio me emociona siempre, por muchas veces que lo haya visto. Te invito a que t\u00fa tambi\u00e9n sientas, a trav\u00e9s del cambio de color, que el agua est\u00e1 realmente presente en el aire.<\/p>\n<h3>Contacto y solicitudes<\/h3>\n<p>\u00a1Acercamos la maravilla y la diversi\u00f3n de la ciencia a tu d\u00eda a d\u00eda! Aqu\u00ed reunimos experimentos cient\u00edficos divertidos que puedes hacer en casa, junto con sus trucos, explicados de forma sencilla. \u00a1An\u00edmate a explorar y buscar lo que te interese!<br \/>\n\u30fbEl contenido de &#8220;Kagaku no Netach\u014d&#8221; (el cuaderno de ideas de ciencia) se ha convertido en libro. M\u00e1s informaci\u00f3n <a href=\"https:\/\/amzn.to\/42PMCEL\">aqu\u00ed<\/a><br \/>\n\u30fbSobre Ken Kuwako, responsable del blog, haz clic <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">aqu\u00ed<\/a><br \/>\n\u30fbPara todo tipo de solicitudes (redacci\u00f3n, conferencias, talleres de experimentos, supervisi\u00f3n y participaci\u00f3n en TV, etc.) haz clic <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">aqu\u00ed<\/a><br \/>\n<span class=\"s2\">\u30fb\u00a1Las novedades de los art\u00edculos se publican en <a href=\"https:\/\/x.com\/kuwako\">X<\/a>!<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.youtube.com\/user\/kkuwako\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-35048\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3d9640dad7bc5538e76f92da1966ee19.jpg\" alt=\"\" width=\"30\" height=\"21\" \/><\/a><a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Kagaku no Neta Channel<\/a>: \u00a1en el canal publicamos v\u00eddeos de experimentos!<\/p>\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u76e3\u4fee\u30fb\u30a4\u30d9\u30f3\u30c8\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n<li>11\/4\uff08\u6c34\uff09<a href=\"https:\/\/www.ntv.co.jp\/zip\/\">ZIP\uff08\u65e5\u672c\u30c6\u30ec\u30d3\uff09<\/a>\u306e\u30b3\u30fc\u30ca\u30fc\uff087:20\u5206\u3053\u308d\u653e\u9001\u4e88\u5b9a\uff09\u306b\u3066\u79d1\u5b66\u76e3\u4fee\u3092\u62c5\u5f53\u3057\u307e\u3057\u305f\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=69252\">\u30b4\u30f3\u30c1\u30e3\u306e\u30b9\u30c8\u30ed\u30fc\u306e\u5dee\u3057\u65b9\u306b\u95a2\u3059\u308b\u30a6\u30e9\u30b6\u30ef\u3068\u79d1\u5b66\u89e3\u8aac\u306b\u3064\u3044\u3066<\/a>\u3067\u3059\u3002<\/li>\r\n<\/ul>\r\n<p><img class=\"alignnone  wp-image-69254 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-05-4.11.17.jpeg\" alt=\"\" width=\"264\" height=\"210\" \/><\/p>\r\n<ul>\r\n<li>11\u670827\u65e5\uff08\u91d1\uff09\u3000\u30c6\u30ec\u30d3\u76e3\u4fee\u756a\u7d44\u653e\u9001\u4e88\u5b9a<\/li>\r\n<li>12\u670826\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=69396\">\u30ca\u30ea\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\uff08\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\uff09\u958b\u50ac<\/a><\/li>\r\n<\/ul>\r\n<h3>\uff11\uff11\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=69130\">\u3069\u3046\u3057\u3066\u7d50\u9732\u306f\u8d77\u3053\u308b\u306e\u304b\uff1f\u7d50\u9732\u3092\u9632\u3050\u305f\u3081\u306b\u306f\uff1f\u5b9f\u9a13\u3067\u78ba\u304b\u3081\u3088\u3046\uff01<\/a><\/p>\r\n<p><img class=\"alignnone wp-image-69132 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2026-10-31-10.02.13-10.07.37.jpeg\" sizes=\"(max-width: 420px) 100vw, 420px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-31-10.02.13-10.07.37.jpeg 1322w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-31-10.02.13-10.07.37-300x253.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-31-10.02.13-10.07.37-1024x863.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-31-10.02.13-10.07.37-768x647.jpeg 768w\" alt=\"\" width=\"316\" height=\"266\" \/><\/p>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n<li>\u300e<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\">\u9ad8\u6821\u5165\u8a66 \u5206\u89e3\u554f\u984c\u96c6 \u7406\u79d1<\/a>\u300f\uff08\u5b66\u7814\uff09\u2026\u96e3\u3057\u3044\u554f\u984c\u3082\u5c0f\u3055\u306a\u554f\u984c\u306b\u5206\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u3093\u306a\u5206\u89e3\u306e\u6280\u8853\u304c\u8eab\u306b\u3064\u304f\u3088\u3046\u306b\u6df1\u304f\u95a2\u308f\u308a\u3092\u6301\u3063\u3066\u4f5c\u308a\u307e\u3057\u305f\u3002<br \/><a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\"><img class=\"alignnone  wp-image-65097 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-04-8.40.17.jpeg\" alt=\"\" width=\"172\" height=\"244\" \/><\/a>\u300e\u5927\u4eba\u306e\u305f\u3081\u306e\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\u300f\uff08\u8b1b\u8ac7\u793e\uff09\u2026\u4e00\u822c\u5411\u3051\u306b\u65e5\u5e38\u306e\u7269\u7406\u306b\u3064\u3044\u3066\u516c\u5f0f\u3092\u5143\u306b\u7d10\u89e3\u304d\u307e\u3057\u305f\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=1827\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u3067\u306f\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u203b\u5897\u5237\u304c\u304b\u304b\u308a\uff16\u5237\u3068\u306a\u308a\u307e\u3057\u305f\uff082026\/02\/01\uff09<br \/><img class=\"alignnone wp-image-10940 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg\" sizes=\"(max-width: 220px) 100vw, 220px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg 311w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-07-05 0.43.51\" width=\"220\" height=\"192\" \/><\/strong><\/li>\r\n<li>\u300e\u304d\u3081\u308b!\u5171\u901a\u30c6\u30b9\u30c8 \u7269\u7406\u57fa\u790e \u6539\u8a02\u7248\u300f\uff08\u5b66\u7814\uff09\u2026\u3000\u9ad8\u6821\u7269\u7406\u306e\u53c2\u8003\u66f8\u3067\u3059\u3002\u30a4\u30e9\u30b9\u30c8\u3092\u591a\u304f\u3057\u3066\u30a4\u30e1\u30fc\u30b8\u304c\u6301\u3066\u308b\u3088\u3046\u306b\u63cf\u304d\u307e\u3057\u305f\u3002\u6388\u696d\u306b\u3064\u3044\u3066\u3044\u3051\u306a\u3044\u3001\u7269\u7406\u304c\u82e6\u624b\u3001\u305d\u3093\u306a\u751f\u5f92\u306b\u304a\u3059\u3059\u3081\u3067\u3059\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=45322\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u306f\u3053\u3061\u3089\u3002<br \/><img class=\"alignnone wp-image-45718 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg\" sizes=\"(max-width: 184px) 100vw, 184px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg 756w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c-300x269.jpg 300w\" alt=\"\" width=\"184\" height=\"165\" \/><\/li>\r\n<\/ul>\r\n<h3><span style=\"text-align: center;\">\u5404\u7a2eSNS\uff08\u66f4\u65b0\u60c5\u5831\u3092\u304a\u5c4a\u3051\uff01\uff09<\/span><\/h3>\r\n<p style=\"text-align: center;\">\u3010\u65e5\u672c\u8a9e\u3011<a style=\"text-align: center;\" href=\"https:\/\/twitter.com\/kuwako\">X(Twitter)<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.instagram.com\/science_seeds\/\">instagram<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.facebook.com\/kuwakolab\/\">Facebook<\/a>\u3000\u3010\u82f1\u8a9e\u3011<a style=\"text-align: center;\" href=\"https:\/\/bsky.app\/profile\/kagakunoneta.bsky.social\">BlueSky<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.threads.net\/@science_seeds?hl=ja\">Threads<\/a><\/p>\r\n<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=30764\">\u697d\u3057\u3044\u5b9f\u9a13<\/a>\u2026\u304a\u5b50\u3055\u3093\u3068\u4e00\u7dd2\u306b\u5922\u4e2d\u306b\u306a\u308c\u308b\u30a4\u30c1\u30aa\u30b7\u306e\u79d1\u5b66\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u9ad8\u6821\u7269\u7406\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u306e\u52d5\u753b\u6559\u6750\u3082\u7528\u610f\u3057\u307e\u3057\u305f\u3002<\/li>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=798\">\u7406\u79d1\u306e\u6559\u6750<\/a>\u2026 \u7406\u79d1\u6559\u5e2b\u3092\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff01\u6388\u696d\u306e\u8cea\u3092\u9ad8\u3081\u3001\u6e96\u5099\u3092\u52b9\u7387\u5316\u3059\u308b\u305f\u3081\u306e\u9078\u308a\u3059\u3050\u308a\u306e\u6559\u6750\u3092\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a href=\"https:\/\/www.youtube.com\/c\/kkuwako\">Youtube<\/a>\u2026\u79d1\u5b66\u5b9f\u9a13\u7b49\u306e\u52d5\u753b\u3092\u914d\u4fe1\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a href=\"https:\/\/music.youtube.com\/playlist?list=PLoK4ZvKN9S2NgpYIochcQs0aL-vrRB_Qw\">\u79d1\u5b66\u30e9\u30b8\u30aa<\/a>\u00a0\u2026\u79d1\u5b66\u30c8\u30d4\u30c3\u30af\u3092\u307b\u307c\u6bce\u65e5\u914d\u4fe1\u4e2d\uff01AI\u6280\u8853\u3092\u99c6\u4f7f\u3057\u3066\u4f5c\u6210\u3057\u305f\u300c\u8033\u3067\u697d\u3057\u3080\u79d1\u5b66\u300d\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002<\/li>\r\n<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=20940\">\u8b1b\u6f14<\/a>\u00a0\u2026\u5168\u56fd\u5404\u5730\u3067\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u30fb\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\u7b49\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=37\">About<\/a>\u00a0\u2026\u300c\u79d1\u5b66\u306e\u30cd\u30bf\u5e33\u300d\u306e\u30b3\u30f3\u30bb\u30d7\u30c8\u3084\u3001\u904b\u55b6\u8005\u3067\u3042\u308b\u6851\u5b50\u7814\u306e\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u30fb\u60f3\u3044\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a>\u00a0\u2026\u5b9f\u9a13\u6559\u5ba4\u306e\u3054\u4f9d\u983c\u3001\u57f7\u7b46\u30fb\u8b1b\u6f14\u306e\u76f8\u8ac7\u3001\u79d1\u5b66\u76e3\u4fee\u7b49\u306f\u3053\u3061\u3089\u306e\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u304a\u5bc4\u305b\u304f\u3060\u3055\u3044\u3002<\/li>\r\n<\/ul>\r\n<h3 style=\"text-align: left;\"><ul class=\"wp-block-latest-posts__list is-grid has-dates wp-block-latest-posts is-layout-flow wp-block-latest-posts-is-layout-flow\"><li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=69538&#038;lang=fi\" aria-label=\"Punainen paperi muuttuu hetkess\u00e4 siniseksi! Hiustenkuivaaja paljastaa \u201cn\u00e4kym\u00e4tt\u00f6m\u00e4n kosteuden\u201d salaisuuden\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.51-150x150.jpeg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=69538&#038;lang=fi\">Punainen paperi muuttuu hetkess\u00e4 siniseksi! Hiustenkuivaaja paljastaa \u201cn\u00e4kym\u00e4tt\u00f6m\u00e4n kosteuden\u201d salaisuuden<\/a><time datetime=\"2026-11-14T04:40:31+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e7411\u670814\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=69536&#038;lang=es\" aria-label=\"\u00a1El papel rojo se vuelve azul en un instante! El secador de pelo revela el secreto de la \u201chumedad invisible\u201d\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.51-150x150.jpeg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=69536&#038;lang=es\">\u00a1El papel rojo se vuelve azul en un instante! El secador de pelo revela el secreto de la \u201chumedad invisible\u201d<\/a><time datetime=\"2026-11-14T04:40:11+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e7411\u670814\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=69540&#038;lang=hi\" aria-label=\"\u0932\u093e\u0932 \u0915\u093e\u0917\u091c\u093c \u092a\u0932 \u092d\u0930 \u092e\u0947\u0902 \u0928\u0940\u0932\u093e! \u0939\u0947\u092f\u0930 \u0921\u094d\u0930\u093e\u092f\u0930 \u0938\u0947 \u0916\u0941\u0932\u093e &#8220;\u0905\u0926\u0943\u0936\u094d\u092f \u0928\u092e\u0940&#8221; \u0915\u093e \u0930\u093e\u091c\u093c\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.51-150x150.jpeg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=69540&#038;lang=hi\">\u0932\u093e\u0932 \u0915\u093e\u0917\u091c\u093c \u092a\u0932 \u092d\u0930 \u092e\u0947\u0902 \u0928\u0940\u0932\u093e! \u0939\u0947\u092f\u0930 \u0921\u094d\u0930\u093e\u092f\u0930 \u0938\u0947 \u0916\u0941\u0932\u093e &#8220;\u0905\u0926\u0943\u0936\u094d\u092f \u0928\u092e\u0940&#8221; \u0915\u093e \u0930\u093e\u091c\u093c<\/a><time datetime=\"2026-11-14T04:38:29+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e7411\u670814\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=69544&#038;lang=ko\" aria-label=\"\ube68\uac04 \uc885\uc774\uac00 \uc21c\uc2dd\uac04\uc5d0 \ud30c\ub797\uac8c! \ub4dc\ub77c\uc774\uc5b4\ub85c \uc54c\uc544\ubcf4\ub294 &#8216;\ubcf4\uc774\uc9c0 \uc54a\ub294 \uc2b5\uae30&#8217;\uc758 \uc815\uccb4\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.51-150x150.jpeg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=69544&#038;lang=ko\">\ube68\uac04 \uc885\uc774\uac00 \uc21c\uc2dd\uac04\uc5d0 \ud30c\ub797\uac8c! \ub4dc\ub77c\uc774\uc5b4\ub85c \uc54c\uc544\ubcf4\ub294 &#8216;\ubcf4\uc774\uc9c0 \uc54a\ub294 \uc2b5\uae30&#8217;\uc758 \uc815\uccb4<\/a><time datetime=\"2026-11-14T04:37:49+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e7411\u670814\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=69542&#038;lang=zh\" aria-label=\"\u7d05\u7d19\u77ac\u9593\u8b8a\u85cd!\u7528\u5439\u98a8\u6a5f\u63ed\u958b\u300c\u770b\u4e0d\u898b\u7684\u6fd5\u6c23\u300d\u771f\u9762\u76ee\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.51-150x150.jpeg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=69542&#038;lang=zh\">\u7d05\u7d19\u77ac\u9593\u8b8a\u85cd!\u7528\u5439\u98a8\u6a5f\u63ed\u958b\u300c\u770b\u4e0d\u898b\u7684\u6fd5\u6c23\u300d\u771f\u9762\u76ee<\/a><time datetime=\"2026-11-14T04:36:40+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e7411\u670814\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=69534&#038;lang=en\" aria-label=\"Red Paper Turns Blue in a Flash! A Hair Dryer Reveals the Secret of \u201cInvisible Moisture\u201d\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-12-4.18.51-150x150.jpeg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=69534&#038;lang=en\">Red Paper Turns Blue in a Flash! 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N\u00e4in 10 %:nen suolahappo liuottaa kalkkisaostumat\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/11\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-11-11-9.18.48-150x150.jpeg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=69520&#038;lang=fi\">Kuplien salaisuus on hiilidioksidi! N\u00e4in 10 %:nen suolahappo liuottaa kalkkisaostumat<\/a><time datetime=\"2026-11-13T04:17:39+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e7411\u670813\u65e5<\/time><\/li>\n<\/ul><\/h3>\r\n<p>&nbsp;<\/p>\r\n<h3 style=\"text-align: left;\"><\/h3>\r\n","protected":false},"excerpt":{"rendered":"<p>Soy Ken Kuwako, entrenador de ciencia. Para m\u00ed, cada d\u00eda es un experimento. \u00bfAlguna vez has notado que el pape [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":69486,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","sns_share_botton_hide":"","vkExUnit_sns_title":"","vkexunit_cta_each_option":"","_lightning_design_setting":{"layout":"default"},"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1492],"tags":[],"class_list":["post-69536","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-es"],"jetpack-related-posts":[{"id":54308,"url":"https:\/\/phys-edu.net\/wp\/?p=54308&lang=es","url_meta":{"origin":69536,"position":0},"title":"\u00a1Aparecen como joyas! 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