{"id":40218,"date":"2022-12-14T19:54:52","date_gmt":"2022-12-14T19:54:52","guid":{"rendered":"https:\/\/www.alquera.com\/?post_type=product&#038;p=40218"},"modified":"2023-09-01T14:31:06","modified_gmt":"2023-09-01T14:31:06","slug":"bolas-objetos-flotantes","status":"publish","type":"product","link":"https:\/\/www.alquera.com\/fr\/bolas-objetos-flotantes\/","title":{"rendered":"R\u00e9fraction de la lumi\u00e8re avec des boules de gel. #Exp5"},"content":{"rendered":"<h2>CE QUI EST INCLUS DANS LE KIT<\/h2>\n<ul>\n<li>1 sac avec des boules de gel transparentes :\n<ul>\n<li>Vous pouvez choisir entre :\n<ul>\n<li>100g de perles s\u00e8ches peuvent \u00eatre transform\u00e9es en 100L. Taille de la boule : 2,5-3mm \u00e0 sec - 1-1,5cm hydrat\u00e9 avec de l'eau.<\/li>\n<li>ou 1kg jusqu'\u00e0 1000l d'eau. Taille de la boule : 2,5-3mm \u00e0 sec - 1-1,5cm hydrat\u00e9 avec de l'eau.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>Non inclus : les \u00e9l\u00e9ments d\u00e9coratifs et les bougies flottantes, que vous devrez acheter dans un magasin.<\/li>\n<\/ul>\n<h2>D\u00c9TAILL\u00c9E, \u00c9TAPE PAR \u00c9TAPE<\/h2>\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe loading=\"lazy\" title=\"#Exp5 - Refracci\u00f3n de la Luz con Bolas de Gel.\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/H2JXBvxNqOk?start=5&#038;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><\/div>\n<ul>\n<li>Prenez les boules de gel.<\/li>\n<li>Chaque 10 grammes de boules absorbe jusqu'\u00e0 1 litre d'eau. Il leur faudra 4 \u00e0 5 heures pour s'hydrater compl\u00e8tement.<\/li>\n<li>Ajoutez les boules dans le vase, placez les \u00e9l\u00e9ments d\u00e9coratifs.<\/li>\n<li>Versez de l'eau et vous verrez que les objets semblent flotter.<\/li>\n<\/ul>\n<h2>EXPLICATION TECHNIQUE<\/h2>\n<p>La r\u00e9fraction est le changement de la direction de propagation d'une onde lorsqu'elle traverse une interface entre deux milieux ayant des indices de r\u00e9fraction diff\u00e9rents. Cela se produit parce que la vitesse de l'onde est diff\u00e9rente dans chaque milieu.<\/p>\n<p>Lorsqu'un objet est immerg\u00e9 dans l'eau, la lumi\u00e8re qui p\u00e9n\u00e8tre dans l'objet traverse l'interface air-gel et est r\u00e9fract\u00e9e en raison de la diff\u00e9rence entre les indices de r\u00e9fraction de l'air et de l'objet. Ensuite, lorsque la lumi\u00e8re traverse l'interface gel-eau, elle est \u00e0 nouveau r\u00e9fract\u00e9e en raison de la diff\u00e9rence d'indices de r\u00e9fraction.<\/p>\n<p>Cependant, comme la boule de gel a le m\u00eame indice de r\u00e9fraction que l'eau, il n'y a pas de diff\u00e9rence de vitesse de la lumi\u00e8re dans le gel et dans l'eau, et il n'y a donc pas de r\u00e9fraction lorsque la lumi\u00e8re traverse l'interface gel-eau. Dans ce cas, la lumi\u00e8re p\u00e9n\u00e8tre dans la boule de gel et en ressort sans changer sa direction de propagation, de sorte que la boule de gel appara\u00eet \"invisible\" de l'ext\u00e9rieur. De cette fa\u00e7on, seuls les \u00e9l\u00e9ments d\u00e9coratifs que vous avez plac\u00e9s sont visibles.<\/p>\n<h2>VOIR D'AUTRES ACTIVIT\u00c9S<\/h2>\n<p>Vous pouvez voir d'autres activit\u00e9s et kits ici : <a href=\"https:\/\/www.alquera.com\/fr\/experimentos-de-ciencias\/\">Kits d'activit\u00e9s<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Les boules de gel transparent sont un excellent choix pour la fabrication de bougies flottantes car elles ont le m\u00eame indice de r\u00e9fraction que l'eau, ce qui signifie qu'elles ne r\u00e9fractent pas la lumi\u00e8re et n'en d\u00e9forment donc pas la couleur. De plus, le gel est un mat\u00e9riau s\u00fbr et durable, vous pouvez donc profiter de vos bougies flottantes pendant longtemps. Vous pouvez acheter les balles pour vous entra\u00eener en suivant les \u00e9tapes ci-dessous.<\/p>","protected":false},"featured_media":40376,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[329,21],"product_tag":[],"class_list":{"0":"post-40218","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-experimentos-ciencias","7":"product_cat-productos","8":"pa_cantidad-100g","9":"pa_cantidad-1kg","10":"desktop-align-left","11":"tablet-align-left","12":"mobile-align-left","13":"ast-product-gallery-layout-horizontal-slider","14":"ast-magnify-disabled","15":"ast-product-single-variable","16":"ast-product-tabs-layout-horizontal","17":"ast-qv-on-image","19":"first","20":"instock","21":"taxable","22":"shipping-taxable","23":"purchasable","24":"product-type-variable","25":"has-default-attributes"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Refracci\u00f3n de la Luz con Bolas de Gel. #Exp5: Comprar Online - Alquera.com<\/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:\/\/www.alquera.com\/fr\/bolas-objetos-flotantes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Refracci\u00f3n de la Luz con Bolas de Gel. #Exp5: Comprar Online - Alquera.com\" \/>\n<meta property=\"og:description\" content=\"Las bolas de gel transparentes son una excelente opci\u00f3n para hacer velas flotantes ya que tienen el mismo \u00edndice de refracci\u00f3n que el agua, lo que significa que no refractan la luz y, por lo tanto, no distorsionan el color de la luz. 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