{"id":818,"date":"2004-12-03T09:53:00","date_gmt":"2004-12-03T08:53:00","guid":{"rendered":"https:\/\/kids.esa.int\/shapeshifting_metals\/"},"modified":"2026-10-08T00:32:38","modified_gmt":"2026-10-07T22:32:38","slug":"shapeshifting_metals","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/ro\/shapeshifting_metals\/","title":{"rendered":"Metale care \u00ee\u0219i schimb\u0103 forma"},"content":{"rendered":"<div class=\"lede\">\n<p>\u021ai-e team\u0103 s\u0103 mergi la dentist? \u021ai-ai dori s\u0103 existe o modalitate mai u\u0219oar\u0103 de a ob\u021bine z\u00e2mbetul perfect?<\/p>\n<\/div>\n<p>Cercetarea spa\u021bial\u0103 contribuie la reducerea num\u0103rului de vizite la cabinetul stomatologic odat\u0103 cu introducerea aliajelor cu memorie de form\u0103 (SMA). Aceste metale \u2018inteligente\u2019 au o capacitate uimitoare de a-\u0219i \u2018aminti\u2019 diferite pozi\u021bii.<\/p>\n<p>La fel ca o band\u0103 elastic\u0103, acestea \u00ee\u0219i recap\u0103t\u0103 forma ini\u021bial\u0103 dup\u0103 ce au fost \u00eentinse sau \u00eendoite. Dac\u0103 sunt \u00eendoite \u00eentr-o form\u0103 nou\u0103, aplicarea c\u0103ldurii le face s\u0103 revin\u0103 la forma ini\u021bial\u0103.<\/p>\n<p>Programul spa\u021bial european a dezvoltat aceste aliaje pentru comutatoare automate. Cu toate acestea, ele \u0219i-au g\u0103sit \u00een scurt timp numeroase aplica\u021bii, printre care \u0219i repararea fracturilor osoase.<\/p>\n<p>Capsele realizate din s\u00e2rm\u0103 SMA \u00eendoit\u0103 sunt fixate peste fractur\u0103. C\u0103ldura corporal\u0103 determin\u0103 apoi \u00eenchiderea capselor, apropiind astfel oasele una de alta.<\/p>\n<p>Acestea nu numai c\u0103 \u00eenchid fractura, ci \u0219i \u00eent\u0103resc osul p\u00e2n\u0103 la vindecare. \u00cen acela\u0219i mod, ele pot fi folosite pentru a controla mi\u0219carea din\u021bilor.<\/p>\n<p>Aproximativ un sfert dintre copii trebuie s\u0103 mearg\u0103 la dentist pentru a-\u0219i \u00eembun\u0103t\u0103\u021bi alinierea din\u021bilor. Prin utilizarea aparatelor SMA, este acum posibil\u0103 \u00eenchiderea spa\u021biilor dintre din\u021bi sau \u00eendreptarea acestora \u00eentr-un mod bl\u00e2nd, dar rapid. Acest lucru \u00eenseamn\u0103 mai pu\u021bin\u0103 durere \u0219i mai pu\u021bine vizite la cabinetul stomatologic.<\/p>","protected":false},"excerpt":{"rendered":"<p>Do you dread going to the dentist? Do you wish there was an easier way to obtain that perfect smile? Space research is helping to cut back on visits to [&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\/2004\/12\/dentist_22\/17900050-2-eng-GB\/dentist_2.jpg","esa_banner_description":"","esa_banner_credit":"AP Photo\/Chuck Burton","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/12\/dentist_22","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":[10,54,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-818","post","type-post","status-publish","format-standard","hentry","category-learn","category-space-technologies-on-earth","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/818","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=818"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/818\/revisions"}],"predecessor-version":[{"id":1961,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/818\/revisions\/1961"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=818"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=818"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=818"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=818"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=818"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=818"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=818"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=818"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=818"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=818"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}