{"id":236676,"date":"2023-02-20T11:57:00","date_gmt":"2023-02-20T10:57:00","guid":{"rendered":"https:\/\/oscar-iss.space\/?p=236676"},"modified":"2023-12-05T10:08:58","modified_gmt":"2023-12-05T09:08:58","slug":"bulletin-8-2","status":"publish","type":"post","link":"https:\/\/oscar-iss.space\/index.php\/2023\/02\/20\/bulletin-8-2\/","title":{"rendered":"Bulletin #8"},"content":{"rendered":"\n[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.11.1&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;RGBA(0,0,0,0)&#8221; custom_padding=&#8221;0px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.11.1&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;0px||||false|false&#8221; custom_padding=&#8221;0px||8px||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.10.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.11.1&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;Roboto||||||||&#8221; header_font=&#8221;Roboto||||||||&#8221; text_orientation=&#8221;justified&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<p><span style=\"font-family: 'Roboto',Helvetica,Arial,Lucida,sans-serif;\">Pour r\u00e9aliser OSCAR, St\u00e9phane Thidet collabore avec l\u2019\u00e9quipe scientifique du LISA (Laboratoire Interuniversitaire des Syst\u00e8mes Atmosph\u00e9riques) qui r\u00e9alise l\u2019exp\u00e9rience IR-COASTER. Responsable scientifique de cette exp\u00e9rience, l\u2019astrochimiste Herv\u00e9 Cottin m\u00e8ne des recherches sur l\u2019origine et l\u2019\u00e9volution de la mati\u00e8re organique com\u00e9taire. Chef de projet technique du LISA, No\u00ebl Grand occupe une place essentielle dans la r\u00e9alisation de l\u2019\u0153uvre musicale imagin\u00e9e par St\u00e9phane Thidet en prenant en charge la construction d\u2019IR-COASTER et d\u2019OSCAR. <\/span><\/p>\n<p><span style=\"font-family: 'Roboto',Helvetica,Arial,Lucida,sans-serif;\">Il a notamment d\u00e9fini \u00e0 l\u2019artiste les conditions spatiales auxquelles sera confront\u00e9e son \u0153uvre : \u00ab La premi\u00e8re caract\u00e9ristique de ce milieu est l\u2019alternance diurne-nocturne du cycle orbital de la station. Ce cycle est cependant particuli\u00e8rement r\u00e9p\u00e9titif et d\u00e9terministe, les changements sont tr\u00e8s connus et tr\u00e8s r\u00e9currents.\u00a0\u00bb De cette description a germ\u00e9 chez l\u2019artiste l\u2019id\u00e9e d\u2019une \u0153uvre musicale qui s\u2019\u00e9crirait en suivant le cours de ces changements et en s\u2019emparant des multiples variations qui viennent malgr\u00e9 tout troubler cette redondance. St\u00e9phane Thidet a su s\u2019emparer de chaque petite perturbation, des ombres g\u00e9n\u00e9r\u00e9es par les Shuttles qui viennent s\u2019amarrer \u00e0 la Station spatiale internationale aux infimes fluctuations de son orbite, pour enrichir la partition. Si, pour le scientifique, une exp\u00e9rience artistique conduit \u00e0 une multiplication des risques, elle constitue aussi une red\u00e9couverte du milieu qu\u2019il \u00e9tudie. No\u00ebl Grand rencontre finalement une cr\u00e9ativit\u00e9 proche de la sienne qui parvient \u00e0 s\u2019emparer des \u00ab\u00a0contraintes les plus dures\u00a0\u00bb.<\/span><\/p>\n<p><span style=\"font-family: 'Roboto',Helvetica,Arial,Lucida,sans-serif;\">Dans le domaine spatial, la connaissance de ces contraintes et leur respect garantissent la r\u00e9ussite de l\u2019exp\u00e9rience. No\u00ebl Grand a ainsi jou\u00e9 un r\u00f4le d\u2019interm\u00e9diaire \u00ab\u00a0pour r\u00e9pondre \u00e0 la fois aux ambitions artistiques de St\u00e9phane Thidet et aux contraintes de s\u00e9curit\u00e9 d\u2019une exp\u00e9rience spatiale\u00a0\u00bb que son int\u00e9r\u00eat personnel pour une dimension po\u00e9tique et artistique de l\u2019acte scientifique a facilit\u00e9. La possibilit\u00e9 de changer, par exemple, la couleur d\u2019un mat\u00e9riau pour donner une valeur esth\u00e9tique \u00e0 un objet lui semble tout aussi n\u00e9cessaire que le d\u00e9veloppement technique de l\u2019objet, tant que cet attribut ne met pas en danger l\u2019exp\u00e9rience. Les mat\u00e9riaux dont est constitu\u00e9 le dispositif musical d\u2019OSCAR sont d\u2019ailleurs issus du domaine spatial. Les ressorts \u00e0 m\u00e9moire de forme utilis\u00e9s dans les CubeSat (petits satellites d\u2019une vingtaine de centim\u00e8tres de c\u00f4t\u00e9 notamment construits par le Campus Spatial Universitaire de l\u2019UPEC auquel est rattach\u00e9 le LISA) ont \u00e9t\u00e9 d\u00e9tourn\u00e9s par St\u00e9phane Thidet pour fabriquer une sorte de table de mixage\u00a0: \u00ab\u00a0en se contractant ou en se dilatant, les ressorts font bouger des curseurs dont les mouvements sont enregistr\u00e9s par des r\u00e9sistances lin\u00e9aires pour \u00eatre transform\u00e9s en son\u00a0\u00bb. En portant une attention particuli\u00e8re \u00e0 ce qui n\u2019a pas d\u2019int\u00e9r\u00eat direct pour l\u2019exp\u00e9rience scientifique ou en sugg\u00e9rant de nouvelles utilisations, No\u00ebl Grand attend de l\u2019intervention artistique qu\u2019elle introduise de l\u2019inattendu et g\u00e9n\u00e8re des questionnements \u00ab\u00a0qui ne se seraient pas pos\u00e9s autrement.\u00a0\u00bb<\/span><\/p>\n<p>\u00ab\u00a0Pourquoi ajouter un projet plastique \u00e0 une exp\u00e9rience scientifique\u00a0? \u00bb est une des questions r\u00e9guli\u00e8rement pos\u00e9es. OSCAR se d\u00e9veloppe en symbiose avec le milieu spatial et l\u2019exp\u00e9rience du LISA puisque le \u00ab\u00a0partitionneur\u00a0\u00bb imagin\u00e9 par St\u00e9phane Thidet est une sorte de compositeur num\u00e9rique qui r\u00e9cup\u00e8re toutes les informations de l\u2019instrument IR-COASTER (mouvements du moteur, mouvements du courant et changement de temp\u00e9rature). La partition musicale une fois jou\u00e9e sur Terre restituera les variations du milieu spatial ainsi que la \u00ab\u00a0vie orbitale de l\u2019\u00e9quipement lui-m\u00eame\u00a0\u00bb.<\/p>\n<p><strong>\u00a0<\/strong><\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.11.1&#8243; _module_preset=&#8221;default&#8221; width=&#8221;81%&#8221; min_height=&#8221;316.2px&#8221; custom_margin=&#8221;||||false|false&#8221; custom_padding=&#8221;||7px||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.10.6&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/oscar-iss.space\/wp-content\/uploads\/2023\/02\/VersDefToshop-scaled.jpg&#8221; alt=&#8221;Photographie de No\u00ebl Grand et St\u00e9phane Thidet travaillant sur le Projet OSCAR&#8221; title_text=&#8221;N\u00f6el Grand et St\u00e9phane Thidet&#8221; _builder_version=&#8221;4.11.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.11.1&#8243; _module_preset=&#8221;default&#8221; text_orientation=&#8221;center&#8221; custom_margin=&#8221;-20px|0px||-2px|false|false&#8221; custom_padding=&#8221;||0px|0px|false|false&#8221; border_style_all=&#8221;none&#8221; border_width_left=&#8221;5px&#8221; border_color_left=&#8221;#486482&#8243; global_colors_info=&#8221;{}&#8221;]No\u00ebl Grand et St\u00e9phane Thidet dans l&#8217;atelier de l&#8217;artiste \u00a9Observatoire de l\u2019Espace, CNES[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.11.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.11.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.11.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.11.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_3,1_3,1_3&#8243; _builder_version=&#8221;4.10.5&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; min_height=&#8221;165.7px&#8221; custom_padding=&#8221;0px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.10.5&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_post_nav in_same_term=&#8221;on&#8221; show_prev=&#8221;off&#8221; next_text=&#8221;BULLETIN PR\u00c9C\u00c9DENT&#8221; _builder_version=&#8221;4.11.1&#8243; _module_preset=&#8221;default&#8221; title_font=&#8221;Alata|||on|||||&#8221; title_text_color=&#8221;#486482&#8243; title_font_size=&#8221;13px&#8221; title_letter_spacing=&#8221;2px&#8221; title_line_height=&#8221;3em&#8221; custom_css_next_link_arrow=&#8221;display:none;&#8221; border_radii=&#8221;on|3px|3px|3px|3px&#8221; border_color_all=&#8221;rgba(72,100,130,0.93)&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_post_nav][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.10.5&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_button button_url=&#8221;https:\/\/oscar-iss.space\/index.php\/journal-dune-experience-artistique-2\/&#8221; button_text=&#8221;Retour au journal&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.10.6&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_use_icon=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.10.5&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_post_nav in_same_term=&#8221;on&#8221; show_next=&#8221;off&#8221; prev_text=&#8221;Bulletin Suivant&#8221; _builder_version=&#8221;4.11.1&#8243; _module_preset=&#8221;default&#8221; title_font=&#8221;Alata|||on|||||&#8221; title_text_color=&#8221;#486482&#8243; title_font_size=&#8221;13px&#8221; title_letter_spacing=&#8221;2px&#8221; title_line_height=&#8221;3em&#8221; custom_css_prev_link_arrow=&#8221;display:none;&#8221; border_radii=&#8221;on|3px|3px|3px|3px&#8221; border_color_all=&#8221;rgba(72,100,130,0.93)&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_post_nav][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n","protected":false},"excerpt":{"rendered":"<p>Pour r\u00e9aliser OSCAR, St\u00e9phane Thidet collabore avec l\u2019\u00e9quipe scientifique du LISA (Laboratoire Interuniversitaire des Syst\u00e8mes Atmosph\u00e9riques) qui r\u00e9alise l\u2019exp\u00e9rience IR-COASTER. Responsable scientifique de cette exp\u00e9rience, l\u2019astrochimiste Herv\u00e9 Cottin m\u00e8ne des recherches sur l\u2019origine et l\u2019\u00e9volution de la mati\u00e8re organique com\u00e9taire. Chef de projet technique du LISA, No\u00ebl Grand occupe une place essentielle dans la r\u00e9alisation [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":236631,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"1080"},"categories":[8],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bulletin #8 - OSCAR<\/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:\/\/oscar-iss.space\/index.php\/2023\/02\/20\/bulletin-8-2\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bulletin #8 - OSCAR\" \/>\n<meta property=\"og:description\" content=\"Pour r\u00e9aliser OSCAR, St\u00e9phane Thidet collabore avec l\u2019\u00e9quipe scientifique du LISA (Laboratoire Interuniversitaire des Syst\u00e8mes Atmosph\u00e9riques) qui r\u00e9alise l\u2019exp\u00e9rience IR-COASTER. Responsable scientifique de cette exp\u00e9rience, l\u2019astrochimiste Herv\u00e9 Cottin m\u00e8ne des recherches sur l\u2019origine et l\u2019\u00e9volution de la mati\u00e8re organique com\u00e9taire. 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