{"id":1047,"date":"2010-06-30T07:54:00","date_gmt":"2010-06-30T05:54:00","guid":{"rendered":"https:\/\/kids.esa.int\/weightless_experiments_help_industries_on_earth\/"},"modified":"2026-10-08T00:35:16","modified_gmt":"2026-10-07T22:35:16","slug":"weightless_experiments_help_industries_on_earth","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/ro\/weightless_experiments_help_industries_on_earth\/","title":{"rendered":"Experimentele \u00een imponderabilitate ajut\u0103 industriile de pe P\u0103m\u00e2nt"},"content":{"rendered":"<div class=\"lede\">\n<p>O \u0219edere obi\u0219nuit\u0103 la bordul Sta\u021biei Spa\u021biale Interna\u021bionale (ISS) dureaz\u0103 aproximativ \u0219ase luni. Dar cum \u00ee\u0219i petrec membrii echipajului timpul c\u00e2t se afl\u0103 acolo sus? O mare parte din activitatea lor zilnic\u0103 este dedicat\u0103 desf\u0103\u0219ur\u0103rii unor experimente care ar putea avea aplica\u021bii practice pe P\u0103m\u00e2nt.<\/p>\n<\/div>\n<p>Sta\u021bia Spa\u021bial\u0103 Interna\u021bional\u0103 (ISS) este cel mai mare \u0219i mai avansat laborator care a fost vreodat\u0103 lansat \u00een spa\u021biu. Folosind modulele sale special echipate, precum laboratorul \u201eColumbus\u201d al ESA, oamenii de \u0219tiin\u021b\u0103 pot studia o gam\u0103 larg\u0103 de subiecte \u00eentr-un mediu cu totul special, \u00een care totul se afl\u0103 \u00een stare de imponderabilitate. Pe P\u0103m\u00e2nt, gravita\u021bia influen\u021beaz\u0103 puternic tot ceea ce facem, dar se \u00eent\u00e2mpl\u0103 lucruri foarte ciudate atunci c\u00e2nd efectele gravita\u021biei dispar.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"200\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2007\/11\/A_flame_in_microgravity2\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2007\/11\/a_flame_in_microgravity2\/17893018-2-eng-GB\/A_flame_in_microgravity.jpg\" alt=\"A flame in microgravity\"><figcaption>O flac\u0103r\u0103 \u00een microgravita\u021bie<\/figcaption><\/figure>\n<p>Suntem obi\u0219nui\u021bi s\u0103 vedem flac\u0103ra unei lum\u00e2n\u0103ri av\u00e2nd o form\u0103 conic\u0103. Flac\u0103ra ascu\u021bit\u0103 se formeaz\u0103 atunci c\u00e2nd gazele fierbin\u021bi se ridic\u0103, deoarece sunt mai u\u0219oare dec\u00e2t aerul rece care le \u00eenconjoar\u0103. Acest aer rece este atras \u00een baza fitilului lum\u00e2n\u0103rii \u0219i furnizeaz\u0103 oxigenul necesar pentru a men\u021bine ceara lum\u00e2n\u0103rii aprins\u0103. \u00cens\u0103 \u00een condi\u021bii de imponderabilitate, gazul fierbinte nu este mai u\u0219or dec\u00e2t aerul rece, a\u0219a c\u0103 nu se ridic\u0103. Rezultatul este o flac\u0103r\u0103 mic\u0103, aproape invizibil\u0103, de form\u0103 rotund\u0103. Arderea propriu-zis\u0103 are loc doar la suprafa\u021ba fl\u0103c\u0103rii, unde combustibilul din ceara lum\u00e2n\u0103rii se poate amesteca cu oxigenul din aerul din exterior.<\/p>\n<p>Oamenii de \u0219tiin\u021b\u0103 pot afla multe lucruri studiind modul \u00een care ard substan\u021bele \u00een condi\u021bii de imponderabilitate. Aceste cuno\u0219tin\u021be pot fi apoi folosite, de exemplu, pentru a proiecta motoare de ma\u0219ini sau de avioane care consum\u0103 mai pu\u021bin combustibil \u0219i produc mai pu\u021bin\u0103 poluare.<\/p>\n<p>Un alt domeniu de cercetare interesant se refer\u0103 la amestecarea lichidelor. Multe dintre metalele folosite \u00een via\u021ba de zi cu zi sunt aliaje \u2013 amestecuri din dou\u0103 sau mai multe metale. Aliajele se ob\u021bin prin topirea metalelor, astfel \u00eenc\u00e2t acestea s\u0103 se amestece \u00eentre ele. Pe P\u0103m\u00e2nt, gravita\u021bia influen\u021beaz\u0103 puternic modul \u00een care se combin\u0103 diferitele metale lichide, dar amestecarea este mult mai u\u0219oar\u0103 \u00een spa\u021biu. Experimentele efectuate \u00een condi\u021bii de imponderabilitate ne ofer\u0103 multe informa\u021bii despre acest proces, ceea ce ne permite s\u0103 ob\u021binem aliaje de calitate superioar\u0103 pe P\u0103m\u00e2nt.<\/p>","protected":false},"excerpt":{"rendered":"<p>A typical stay on board the International Space Station (ISS) lasts about six months. But how do the crew members occupy their time while they are up there? Quite a [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2009\/10\/de_winne_with_the_foam_stability_experiment2\/17897422-2-eng-GB\/De_Winne_with_the_Foam_Stability_experiment.jpg","esa_banner_description":"","esa_banner_credit":"NASA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2009\/10\/De_Winne_with_the_Foam_Stability_experiment2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,13,63],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1047","post","type-post","status-publish","format-standard","hentry","category-learn","category-life-in-space","category-living-in-space","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/comments?post=1047"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1047\/revisions"}],"predecessor-version":[{"id":4816,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1047\/revisions\/4816"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=1047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=1047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=1047"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=1047"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=1047"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=1047"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=1047"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=1047"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=1047"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=1047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}