Trong th\u1eddi \u0111\u1ea1i s\u1ea3n xu\u1ea5t ph\u00e1t tri\u1ec3n v\u1edbi t\u1ed1c \u0111\u1ed9 nh\u1ea3y v\u1ecdt ng\u00e0y c\u00e0ng \u0111\u00f2i h\u1ecfi t\u0103ng c\u01b0\u1eddng t\u1ed1c \u0111\u1ed9. \u00d4 t\u00f4 ch\u1ea1y \u0111ua v\u00e0 v\u01b0\u1ee3t xe ng\u1ef1a; xe l\u1eeda l\u1ea1i v\u01b0\u1ee3t \u00f4 t\u00f4, m\u00e1y bay l\u1ea1i v\u01b0\u1ee3t qua xe l\u1eeda; t\u00ean l\u1eeda l\u1ea1i v\u01b0\u1ee3t qua m\u00e1y bay.<\/p>\n\n\n\n
\u00d4 t\u00f4 ch\u1ea1y b\u1eb1ng \u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong, xe l\u1eeda t\u1eebng ch\u1ea1y tr\u00ean \u0111\u01b0\u1eddng s\u1eaft b\u1eb1ng \u0111\u1ed9ng c\u01a1 h\u01a1i n\u01b0\u1edbc, m\u00e1y bay bay t\u1edbi tr\u01b0\u1edbc b\u1eb1ng chong ch\u00f3ng. M\u00e1y bay bay b\u1eb1ng \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c c\u00e0ng c\u00f3 t\u1ed1c \u0111\u1ed9 l\u1edbn. T\u1ed1c \u0111\u1ed9 c\u1ee7a m\u00e1y bay si\u00eau thanh \u0111\u00e3 v\u01b0\u1ee3t qua 3 l\u1ea7n t\u1ed1c \u0111\u1ed9 \u00e2m thanh. C\u00f2n c\u00e1c con t\u00e0u v\u0169 tr\u1ee5 l\u1ea1i c\u00f3 t\u1ed1c \u0111\u1ed9 l\u1edbn kinh ng\u01b0\u1eddi\u2026<\/p>\n\n\n\n
T\u1ed1c \u0111\u1ed9 cao lu\u00f4n g\u1eafn li\u1ec1n v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao: Khi nhi\u00ean li\u1ec7u ch\u00e1y \u0111\u1ec3 t\u1ea1o lu\u1ed3ng kh\u00ed phun s\u1ebd c\u00f3 nhi\u1ec7t \u0111\u1ed9 r\u1ea5t cao. T\u1eeb c\u00e1c \u0111\u1ea7u \u1ed1ng phun c\u1ee7a t\u00ean l\u1eeda s\u1ebd phun ra kh\u00ed ch\u00e1y s\u00e1ng lo\u00e1 m\u1eaft c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ebfn 5000\u00b0C t\u1ea1o n\u00ean c\u00e1c xo\u00e1y l\u1eeda. Ch\u00fang ta bi\u1ebft r\u1eb1ng nhi\u1ec7t \u0111\u1ed9 tr\u00ean b\u1ec1 m\u1eb7t M\u1eb7t Tr\u1eddi kho\u1ea3ng 6000\u00b0C. Khi t\u00ean l\u1eeda bay v\u1edbi v\u1eadn t\u1ed1c cao, d\u00f2ng kh\u00ed do nhi\u00ean li\u1ec7u n\u0103ng l\u01b0\u1ee3ng cao ch\u00e1y s\u1ebd \u0111\u01b0\u1ee3c phun ra \u1edf thi\u1ebft b\u1ecb phun \u0111\u1eb7c bi\u1ec7t. V\u1eadt li\u1ec7u n\u00e0o c\u00f3 th\u1ec3 th\u1eed \u0111\u1ec3 xem kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ebfn 5000\u00b0C? R\u00f5 r\u00e0ng c\u00e1c v\u1eadt li\u1ec7u nh\u01b0: G\u1ed7, ch\u1ea5t d\u1ebbo, thu\u1ef7 tinh, kim lo\u1ea1i \u0111\u1ec1u kh\u00f4ng th\u00edch h\u1ee3p. C\u00f3 th\u1ec3 d\u00f9ng g\u1ed1m \u0111\u01b0\u1ee3c kh\u00f4ng? So v\u1edbi kim lo\u1ea1i th\u00ec g\u1ed1m c\u00f3 t\u1ed1t, nh\u01b0ng v\u1eabn l\u00e0 qu\u00e1 gi\u00f2n.<\/p>\n\n\n\n
Ng\u01b0\u1eddi ta \u0111em b\u1ed9t kim lo\u1ea1i m\u1ecbn nh\u1ed3i v\u00e0o \u0111\u1ea5t s\u00e9t t\u1ea1o th\u00e0nh m\u1ed9t “h\u1ed7n h\u1ee3p” \u0111\u1eb7c bi\u1ec7t l\u00e0 g\u1ed1m kim lo\u1ea1i. G\u1ed1m kim lo\u1ea1i c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m so v\u1edbi kim lo\u1ea1i nh\u01b0 b\u1ec1n ch\u1eafc, kh\u00f4ng gi\u00f2n, l\u1ea1i gi\u1ed1ng g\u1ed1m \u1edf ch\u1ed7 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao; ch\u1ed1ng \u0111\u01b0\u1ee3c ch\u1ea5t oxy ho\u00e1. G\u1ed1m kim lo\u1ea1i ch\u1ee9a \u0111\u1ebfn 20% cacbon c\u00f3 th\u1ec3 d\u00f9ng \u0111\u1ec3 ch\u1ebf t\u1ea1o \u0111\u1ea7u \u1ed1ng phun l\u1eeda (c\u00f2n g\u1ecdi l\u00e0 loa phun) c\u1ee7a c\u00e1c t\u00ean l\u1eeda v\u0169 tr\u1ee5.<\/p>\n\n\n\n
\u0110\u1ea1i \u0111a s\u1ed1 t\u00ean l\u1eeda v\u0169 tr\u1ee5 hi\u1ec7n \u0111\u1ea1i \u0111\u01b0\u1ee3c chia th\u00e0nh nhi\u1ec1u t\u1ea7ng g\u1ecdi l\u00e0 t\u00ean l\u1eeda “nhi\u1ec1u t\u1ea7ng”. Khi kim lo\u1ea1i trong g\u1ed1m kim lo\u1ea1i \u0111\u00e3 bay h\u01a1i h\u1ebft th\u00ec nhi\u00ean li\u1ec7u c\u1ee7a t\u00ean l\u1eeda c\u0169ng kh\u00f4ng c\u00f2n bao nhi\u00eau v\u00e0 t\u1ea7ng t\u00ean l\u1eeda t\u01b0\u01a1ng \u1ee9ng s\u1ebd t\u00e1ch kh\u1ecfi con t\u00e0u mang n\u00f3. M\u1ed9t t\u00ean l\u1eeda kh\u00e1c c\u1ee7a v\u1eadt mang s\u1ebd l\u1ea1i b\u1eaft \u0111\u1ea7u phun kh\u00ed v\u00e0 ti\u1ebfp t\u1ee5c \u0111\u01b0a v\u1ec7 tinh bay t\u1edbi tr\u01b0\u1edbc.<\/p>\n\n\n\n
G\u1ed1m kim lo\u1ea1i c\u00f3 th\u1ec3 d\u00f9ng \u0111\u1ec3 ch\u1ebf t\u1ea1o dao c\u1eaft kim lo\u1ea1i, dao s\u1ebd c\u1eaft kim lo\u1ea1i nh\u01b0 b\u00f3c khoai. G\u1ed1m kim lo\u1ea1i c\u00f2n \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00e1c l\u00f2 ph\u1ea3n \u1ee9ng nguy\u00ean t\u1eed, c\u00f3 th\u1ec3 ch\u1ed1ng l\u1ea1i k\u1ebb \u0111\u1ecbch nguy hi\u1ec3m trong l\u00f2 ph\u1ea3n \u1ee9ng l\u00e0 kim lo\u1ea1i natri \u1edf tr\u1ea1ng th\u00e1i ch\u1ea3y l\u1ecfng c\u00f3 t\u00ednh \u0103n m\u00f2n r\u1ea5t m\u1ea1nh. V\u00ec v\u1eady cho d\u00f9 g\u1ed1m kim lo\u1ea1i ch\u1ec9 c\u00f3 90 n\u0103m l\u1ecbch s\u1eed \u0111\u00e3 tr\u1edf th\u00e0nh v\u1eadt li\u1ec7u m\u0169i nh\u1ecdn quan tr\u1ecdng trong khoa h\u1ecdc k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: G\u1ed1m kim lo\u1ea1i.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Trong th\u1eddi \u0111\u1ea1i s\u1ea3n xu\u1ea5t ph\u00e1t tri\u1ec3n v\u1edbi t\u1ed1c \u0111\u1ed9 nh\u1ea3y v\u1ecdt ng\u00e0y c\u00e0ng \u0111\u00f2i h\u1ecfi t\u0103ng c\u01b0\u1eddng t\u1ed1c \u0111\u1ed9. \u00d4 t\u00f4 ch\u1ea1y \u0111ua v\u00e0 v\u01b0\u1ee3t xe ng\u1ef1a; xe l\u1eeda l\u1ea1i v\u01b0\u1ee3t \u00f4 t\u00f4, m\u00e1y bay l\u1ea1i v\u01b0\u1ee3t qua xe l\u1eeda; t\u00ean l\u1eeda l\u1ea1i v\u01b0\u1ee3t qua m\u00e1y bay. \u00d4 t\u00f4 ch\u1ea1y b\u1eb1ng \u0111\u1ed9ng c\u01a1 \u0111\u1ed1t […]<\/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":[8,15],"tags":[],"class_list":["post-7841","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7841","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=7841"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7841\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}