T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: Nh\u1eefng b\u00ed \u1ea9n c\u1ee7a nh\u00e2n lo\u1ea1i – Minh Anh<\/p>\n\n\n\n
Chi\u1ec1u \u0111\u1ed5 c\u1ee7a c\u00e2y cho th\u1ea5y h\u01b0\u1edbng bay c\u1ee7a thi\u00ean th\u1ea1ch<\/p>\n\n\n\n
M\u1ea3nh h\u1ee3p kim nh\u00f4m gi\u1ed1ng nh\u01b0 chi\u1ebfc r\u00ecu \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y gi\u1eefa \u0111\u00e1m x\u01b0\u01a1ng voi 1 tri\u1ec7u n\u0103m tu\u1ed5i \u1edf Auid \u2013 m\u1ed9t th\u00e0nh ph\u1ed1 ph\u00eda nam Romania \u2013 l\u00e0 b\u00ed \u1ea9n l\u1edbn \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00e0 kh\u1ea3o c\u1ed5. B\u1edfi v\u00ec c\u00e1ch \u0111\u00e2y 1 tri\u1ec7u n\u0103m con ng\u01b0\u1eddi ch\u1ec9 v\u1eeba tho\u00e1t kh\u1ecfi h\u00ecnh d\u00e1ng c\u1ee7a lo\u00e0i v\u01b0\u1ee3n. V\u00e0 ph\u1ea3i \u0111\u1ebfn \u0111\u1ea7u th\u1ebf k\u1ef7 XIX, h\u1ecd m\u1edbi t\u00ecm ra c\u00e1ch s\u1ea3n xu\u1ea5t nh\u00f4m.<\/p>\n\n\n\n
Hi\u1ec7n v\u1eadt t\u00ecm \u0111\u01b0\u1ee3c g\u1ed3m hai m\u1ea3nh x\u01b0\u01a1ng v\u00e0 m\u1ed9t m\u1ea3nh kim lo\u1ea1i n\u1eb1m s\u00e2u 10 m\u00e9t d\u01b0\u1edbi l\u1edbp \u0111\u1ea5t \u0111\u00e1 \u1edf Romania. Sau khi x\u00e9t nghi\u1ec7m, c\u00e1c nh\u00e0 kh\u1ea3o c\u1ed5 k\u1ebft lu\u1eadn, hai m\u1ea3nh x\u01b0\u01a1ng thu\u1ed9c v\u1ec1 m\u1ed9t gi\u1ed1ng voi \u0111\u00e3 tuy\u1ec7t ch\u1ee7ng c\u00e1ch \u0111\u00e2y 1 tri\u1ec7u n\u0103m. C\u00f2n m\u1ea3nh kim lo\u1ea1i l\u00e0 m\u1ed9t h\u1ee3p kim nh\u00f4m, d\u00e0i 20cm. Theo ph\u00e2n t\u00edch cho th\u1ea5y, \u0111\u00e2y kh\u00f4ng th\u1ec3 l\u00e0 m\u1ed9t c\u1ea5u tr\u00fac t\u1ef1 nhi\u00ean, m\u00e0 r\u00f5 r\u00e0ng l\u00e0 m\u1ed9t s\u1ea3n ph\u1ea9m nh\u00e2n t\u1ea1o: Hai m\u1eb7t khoan l\u1ed7 tr\u00f2n, xuy\u00ean th\u1eb3ng v\u00e0o t\u00e2m c\u1ee7a v\u1eadt th\u1ec3. Ngo\u00e0i ra, \u1edf \u0111\u1ea7u hi\u1ec7n v\u1eadt c\u00f2n c\u00f3 m\u1ed9t m\u1ea5u treo (\u0111\u00e3 b\u1ecb g\u00e3y) nh\u01b0 m\u1ed9t v\u1eadt d\u1ee5ng \u1edf th\u1eddi hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n
Ti\u1ec5n s\u0129 I. Niederkorn, Vi\u1ec7n nghi\u00ean c\u1ee9u qu\u1eb7ng kim lo\u1ea1i \u1edf \u0110\u1ee9c, sau khi nghi\u00ean c\u1ee9u hi\u1ec7n v\u1eadt \u0111\u00e3 ch\u1ec9 ra th\u00e0nh ph\u1ea7n c\u1ee7a n\u00f3 nh\u01b0 sau: 6,2% \u0111\u1ed3ng, 2,84% silic, 1,81% thi\u1ebfc, 0,11% cadmium, 0,0024% niken, 0,0023% coban, 0,0002% b\u1ea1c v\u00e0 89% nh\u00f4m.<\/p>\n\n\n\n
Nh\u01b0 v\u1eady, c\u00f3 th\u1ec3 n\u00f3i r\u1eb1ng, nh\u00f4m chi\u1ebfm \u0111a ph\u1ea7n trong h\u1ee3p kim n\u00e0y. \u0110\u1ec3 t\u00ecm hi\u1ec3u v\u1ec1 b\u00ed m\u1eadt c\u1ee7a hi\u1ec7n v\u1eadt, c\u00f3 l\u1ebd ch\u00fang ta c\u0169ng n\u00ean bi\u1ebft m\u1ed9t s\u1ed1 \u0111i\u1ec1u v\u1ec1 nh\u00f4m. N\u0103m 1825, l\u1ea7n \u0111\u1ea7u ti\u00ean ng\u01b0\u1eddi ta t\u00ecm ra c\u00e1ch ch\u1ebf bi\u1ebfn nh\u00f4m v\u00e0 ph\u1ea3i \u0111\u1ea7u th\u1ebf k\u1ef7 XX, c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t nh\u00f4m m\u1edbi ph\u00e1t tri\u1ec3n. \u0110\u1ec3 c\u00f3 nh\u00f4m nguy\u00ean ch\u1ea5t, ng\u01b0\u1eddi ta ph\u1ea3i nung qu\u1eb7ng nh\u00f4m \u1edf nhi\u1ec7t \u0111\u1ed9 tr\u00ean 10000C. Khi nh\u00f4m nguy\u00ean ch\u1ea5t g\u1eb7p kh\u00f4ng kh\u00ed, ngay l\u1eadp t\u1ee9c n\u00f3 b\u1ecb oxy h\u00f3a v\u00e0 t\u1ea1o ra m\u1ed9t l\u1edbp oxit c\u1ef1c m\u1ecfng tr\u00ean b\u1ec1 m\u1eb7t. L\u1edbp \u00f4xit m\u1ecfng n\u00e0y r\u1ea5t c\u1ee9ng, nh\u1eb1m b\u1ea3o v\u1ec7 c\u00e1c l\u1edbp nh\u00f4m nguy\u00ean ch\u1ea5t b\u00ean trong.<\/p>\n\n\n\n
B\u1ed3n n\u01b0\u1edbc n\u1eb7ng trung t\u00e2m m\u00e1y d\u00f2 (m\u00f4 h\u00ecnh)<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: Nh\u1eefng b\u00ed \u1ea9n c\u1ee7a nh\u00e2n lo\u1ea1i – Minh Anh Chi\u1ec1u \u0111\u1ed5 c\u1ee7a c\u00e2y cho th\u1ea5y h\u01b0\u1edbng bay c\u1ee7a thi\u00ean th\u1ea1ch M\u1ea3nh h\u1ee3p kim nh\u00f4m gi\u1ed1ng nh\u01b0 chi\u1ebfc r\u00ecu \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y gi\u1eefa \u0111\u00e1m x\u01b0\u01a1ng voi 1 tri\u1ec7u n\u0103m tu\u1ed5i \u1edf Auid \u2013 m\u1ed9t th\u00e0nh ph\u1ed1 ph\u00eda nam Romania \u2013 l\u00e0 b\u00ed […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[24],"tags":[],"class_list":["post-17018","post","type-post","status-publish","format-standard","hentry","category-kham-pha"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/17018","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=17018"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/17018\/revisions"}],"predecessor-version":[{"id":17019,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/17018\/revisions\/17019"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=17018"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=17018"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=17018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}