{"id":2251590,"date":"2021-06-18T14:33:36","date_gmt":"2021-06-18T12:33:36","guid":{"rendered":"http:\/\/www.planete-sciences.org\/midi-pyrenees\/web\/?p=2251590"},"modified":"2023-07-04T15:02:09","modified_gmt":"2023-07-04T13:02:09","slug":"un-ballon-a-ramonville","status":"publish","type":"post","link":"https:\/\/www.planete-sciences.org\/occitanie\/web\/un-ballon-a-ramonville\/","title":{"rendered":"Un Ballon \u00e0 Ramonville"},"content":{"rendered":"\n

Lundi 7 Juin dernier, devant les locaux de notre association, un groupe de jeunes du Lyc\u00e9e Charles Renouvier de Prades a proc\u00e9d\u00e9 au l\u00e2cher d’un ballon stratosph\u00e9rique. Une op\u00e9ration spectaculaire, fruit de 6 mois de travail en classe de Terminale avec leurs professeurs, encadr\u00e9e par des b\u00e9n\u00e9voles et salari\u00e9s de l’association disposant d’un agr\u00e9ment sp\u00e9cifique d\u00e9livr\u00e9 par le CNES. <\/p>\n\n\n\n

Le ballon a atteint l’altitude de 29 000m et embarquait dans sa nacelle des exp\u00e9riences de relev\u00e9 de temp\u00e9rature, des cam\u00e9ras, des cartes \u00e9lectroniques permettant le suivi etc., le tout pr\u00e9par\u00e9 soigneusement par le groupe. La nacelle du ballon a ensuite \u00e9t\u00e9 r\u00e9cup\u00e9r\u00e9e \u00e0 quelques km de Carcassonne, \u00e0 100km environ du point de d\u00e9part. <\/p>\n\n\n\n

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La finalisation, le l\u00e2cher et a r\u00e9cup\u00e9ration de la nacelle ont \u00e9t\u00e9 retransmis en live sur notre cha\u00eene YouTube, \u00e0 retrouver dans son int\u00e9gralit\u00e9 ici<\/a>. Le d\u00e9collage est \u00e0 visionner \u00e0 3:42:58 ou dans la vid\u00e9o ci-dessous.<\/p>\n\n\n\n

Nous f\u00e9licitons tous les jeunes ayant particip\u00e9 : Enzo, Jehan, Sasha et Yacine, ainsi que leurs enseignants pour avoir r\u00e9ussi \u00e0 mener \u00e0 bien ce projet, dans des conditions particuli\u00e8rement difficiles cette ann\u00e9e. En effet, ils ont pr\u00e9par\u00e9 en amont des mod\u00e9lisations multiphysique diverses, comme l’\u00e9volution de la vitesse, de l’acc\u00e9l\u00e9ration et de la position de la nacelle dans sa phase de mont\u00e9e, puis dans sa phase de descente, mod\u00e9lis\u00e9 les \u00e9volutions de temp\u00e9rature et de pression atmosph\u00e9rique en fonction de l’altitude, mod\u00e9lis\u00e9 le ballon de mani\u00e8re \u00e0 estimer l’altitude \u00e0 laquelle il devrait exploser, mod\u00e9lis\u00e9 l’\u00e9volution de la temp\u00e9rature interne de la nacelle en fonction de l’externe…Pour pouvoir comparer leurs mod\u00e8les au r\u00e9el ils ont eu besoin de mesurer la position de la nacelle en fonction du temps, les temp\u00e9ratures interne et externe, la pression atmosph\u00e9rique. Bref un sacr\u00e9 travail d’\u00e9quipe et de beaux d\u00e9fis techniques, bravo \u00e0 tous ! <\/p>\n\n\n\n

Vous trouverez plus de d\u00e9tails sur le projet \u00ab\u00a0Un ballon pour l’Ecole\u00a0\u00bb sur le site du CNES<\/a>. N’h\u00e9sitez pas \u00e0 nous contacter pour des classes ou clubs du niveau cycle 3 aux projets \u00e9tudiants, par l’interm\u00e9diaire du r\u00e9seau Plan\u00e8te Sciences et de l’op\u00e9ration Un Ballon pour l’Ecole ici.<\/a><\/p>\n\n\n\n

Autre exemple de projet ballon et au fil de l’actu, cet article du Midi-Libre <\/a>relate un l\u00e2cher effectu\u00e9 dans le Gard par des coll\u00e9giens enthousiastes !<\/em><\/p>\n ","protected":false},"excerpt":{"rendered":"

Lundi 7 Juin dernier, devant les locaux de notre association, un groupe de jeunes du Lyc\u00e9e Charles Renouvier de Prades a proc\u00e9d\u00e9 au l\u00e2cher d’un ballon stratosph\u00e9rique. Une op\u00e9ration spectaculaire, fruit de 6 mois de travail en classe de Terminale avec leurs professeurs, encadr\u00e9e par des b\u00e9n\u00e9voles et salari\u00e9s de l’association disposant d’un agr\u00e9ment sp\u00e9cifique […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","_vp_format_video_url":"","_vp_image_focal_point":[],"ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"on","ocean_gallery_id":[],"footnotes":""},"categories":[11],"tags":[],"class_list":["post-2251590","post","type-post","status-publish","format-gallery","hentry","category-planete-sciences","post_format-post-format-gallery","entry"],"_links":{"self":[{"href":"https:\/\/www.planete-sciences.org\/occitanie\/web\/wp-json\/wp\/v2\/posts\/2251590","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.planete-sciences.org\/occitanie\/web\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.planete-sciences.org\/occitanie\/web\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.planete-sciences.org\/occitanie\/web\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.planete-sciences.org\/occitanie\/web\/wp-json\/wp\/v2\/comments?post=2251590"}],"version-history":[{"count":1,"href":"https:\/\/www.planete-sciences.org\/occitanie\/web\/wp-json\/wp\/v2\/posts\/2251590\/revisions"}],"predecessor-version":[{"id":2254804,"href":"https:\/\/www.planete-sciences.org\/occitanie\/web\/wp-json\/wp\/v2\/posts\/2251590\/revisions\/2254804"}],"wp:attachment":[{"href":"https:\/\/www.planete-sciences.org\/occitanie\/web\/wp-json\/wp\/v2\/media?parent=2251590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.planete-sciences.org\/occitanie\/web\/wp-json\/wp\/v2\/categories?post=2251590"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.planete-sciences.org\/occitanie\/web\/wp-json\/wp\/v2\/tags?post=2251590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}