N\u1ebfu \u0111\u1eb7t tr\u01b0\u1edbc m\u1eaft b\u1ea1n m\u1ed9t \u0111\u1ed1ng \u0111\u00e1 v\u00e0 s\u1eaft c\u1ee5c, b\u1ea1n c\u00f3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c h\u00f2n n\u00e0o l\u00e0 thi\u00ean th\u1ea1ch, h\u00f2n n\u00e0o l\u00e0 \u0111\u00e1 hay s\u1eaft t\u1ef1 nhi\u00ean kh\u00f4ng? Ch\u1eb3ng kh\u00f3 l\u1eafm \u0111\u00e2u. \u0110\u1ec3 \u00fd m\u1ed9t ch\u00fat, b\u1ea1n s\u1ebd th\u1ea5y thi\u00ean th\u1ea1ch c\u00f3 l\u1edbp v\u1ecf m\u1ecfng v\u00e0 nh\u1eefng r\u00e3nh kh\u00f4ng kh\u00ed r\u1ea5t \u0111\u1eb7c tr\u01b0ng.<\/p>\n\n\n\n
Khi bay v\u00e0o b\u1ea9u kh\u00ed quy\u1ec3n, thi\u00ean th\u1ea1ch c\u1ecd s\u00e1t v\u1edbi kh\u00f4ng kh\u00ed n\u00ean b\u1ec1 m\u1eb7t ch\u00fang b\u1ecb n\u00f3ng l\u00ean \u0111\u1ebfn m\u1ea5y ngh\u00ecn \u0111\u1ed9, v\u00e0 ch\u1ea3y th\u00e0nh n\u01b0\u1edbc. Sau \u0111\u00f3, khi ngu\u1ed9i d\u1ea9n, b\u1ec1 m\u1eb7t n\u00f3ng ch\u1ea3y n\u00e0y \u0111\u00f3ng l\u1ea1i th\u00e0nh m\u1ed9t l\u1edbp v\u1ecf m\u1ecfng g\u1ecdi l\u00e0 l\u1edbp v\u1ecf n\u00f3ng ch\u1ea3y, th\u01b0\u1eddng l\u1edbp v\u1ecf n\u00e0y ch\u1ec9 d\u00e0y \u0111\u1ed9 1 mm, c\u00f3 m\u00e0u n\u00e2u ho\u1eb7c m\u00e0u n\u00e2u \u0111en.<\/p>\n\n\n\n
Trong qu\u00e1 tr\u00ecnh l\u1edbp v\u1ecf n\u00e0y ngu\u1ed9i d\u1ea9n, kh\u00f4ng kh\u00ed th\u1ed5i qua b\u1ec1 m\u1eb7t n\u00f3 v\u00e0 \u0111\u1ec3 l\u1ea1i nh\u1eefng v\u1ebft h\u1eb1n r\u00f5, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1c r\u00e3nh kh\u00f4ng kh\u00ed, tr\u00f4ng gi\u1ed1ng nh\u01b0 v\u1ebft ng\u00f3n tay \u0111\u1ec3 l\u1ea1i khi ta n\u1eafm b\u1ed9t m\u00ec. L\u1edbp v\u1ecf n\u00f3ng ch\u1ea3y v\u00e0 nh\u1eefng r\u00e3nh kh\u00f4ng kh\u00ed l\u00e0 \u0111\u1eb7c \u0111i\u1ec3m ch\u1ee7 y\u1ebfu c\u1ee7a thi\u00ean th\u1ea1ch. N\u1ebfu nh\u00ecn th\u1ea5y t\u1ea3ng \u0111\u00e1 hay c\u1ee5c s\u1eaft n\u00e0o \u0111\u00f3 c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m k\u1ec3 tr\u00ean, th\u00ec c\u00f3 th\u1ec3 kh\u1eb3ng \u0111\u1ecbnh \u0111\u00f3 ch\u00ednh l\u00e0 thi\u00ean th\u1ea1ch. M\u1ed9t s\u1ed1 thi\u00ean th\u1ea1ch r\u01a1i xu\u1ed1ng \u0111\u1ea5t l\u00e2u ng\u00e0y, b\u1ecb m\u01b0a n\u1eafng phong ho\u00e1 l\u00e0m bong m\u1ea5t l\u1edbp v\u1ecf c\u1ee9ng. Tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3, kh\u00f3 nh\u1eadn ra c\u00e1c r\u00e3nh kh\u00f4ng kh\u00ed nh\u01b0ng \u0111\u00e3 c\u00f3 c\u00e1ch kh\u00e1c \u0111\u1ec3 nh\u1eadn ra ch\u00fang. Thi\u00ean th\u1ea1ch \u0111\u00e1 tr\u00f4ng r\u1ea5t gi\u1ed1ng \u0111\u00e1 tr\u00ean Tr\u00e1i \u0111\u1ea5t, nh\u01b0ng v\u1edbi c\u00f9ng m\u1ed9t th\u1ec3 t\u00edch, b\u1ea1n s\u1ebd th\u1ea5y n\u00f3 n\u1eb7ng h\u01a1n nhi\u1ec1u. Ch\u00fang th\u01b0\u1eddng ch\u1ee9a m\u1ed9t l\u01b0\u1ee3ng s\u1eaft nh\u1ea5t \u0111\u1ecbnh, c\u00f3 t\u1eeb t\u00ednh, d\u00f9ng nam ch\u00e2m th\u1eed l\u00e0 bi\u1ebft ngay. Ngo\u00e0i ra, quan s\u00e1t k\u1ef9 m\u1eb7t c\u1eaft c\u1ee7a thi\u00ean th\u1ea1ch \u0111\u00e1, b\u1ea1n s\u1ebd th\u1ea5y trong \u0111\u00f3 c\u00f3 r\u1ea5t nhi\u1ec1u h\u1ea1t tr\u00f2n nh\u1ecf, \u0111\u01b0\u1eddng k\u00ednh 1 3 mm. 90% thi\u00ean th\u1ea1ch \u0111\u00e1 \u0111\u1ec1u c\u00f3 nh\u1eefng h\u1ea1t tr\u00f2n nh\u1ecf nh\u01b0 v\u1eady.<\/p>\n\n\n\n
Th\u00e0nh ph\u1ea9n ch\u1ee7 y\u1ebfu c\u1ee7a thi\u00ean th\u1ea1ch \u0111\u00e1 l\u00e0 s\u1eaft v\u00e0 niken, trong \u0111\u00f3 s\u1eaft chi\u1ebfm kho\u1ea3ng 90%, niken 4 8%. L\u01b0\u1ee3ng niken trong s\u1eaft t\u1ef1 nhi\u00ean tr\u00ean Tr\u00e1i \u0111\u1ea5t kh\u00f4ng nhi\u1ec1u nh\u01b0 v\u1eady. N\u1ebfu m\u00e0i nh\u1eb5n m\u1eb7t c\u1eaft c\u1ee7a thi\u00ean th\u1ea1ch s\u1eaft r\u1ed3i d\u00f9ng axit nitric b\u00f4i v\u00e0o, s\u1ebd xu\u1ea5t hi\u1ec7n nh\u1eefng v\u1ebft r\u1ed7 r\u1ea5t \u0111\u1eb7c bi\u1ec7t, gi\u1ed1ng nh\u01b0 c\u00e1c \u00f4 hoa. \u0110\u00f3 l\u00e0 v\u00ec th\u00e0nh ph\u1ea9n c\u00e1c ch\u1ea5t trong thi\u00ean th\u1ea1ch s\u1eaft ph\u00e2n b\u1ed1 kh\u00f4ng \u0111\u1ec1u, ch\u1ed7 nhi\u1ec1u ch\u1ed7 \u00edt niken. Ch\u1ed7 ch\u1ee9a nhi\u1ec1u niken kh\u00f3 b\u1ecb axit \u0103n m\u00f2n v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, t\u1ea1o n\u00ean c\u00e1c \u0111\u01b0\u1eddng v\u00e2n. \u0110\u00e2y c\u0169ng l\u00e0 m\u1ed9t c\u00e1ch \u0111\u1ec3 nh\u1eadn bi\u1ebft thi\u00ean th\u1ea1ch.<\/p>\n","protected":false},"excerpt":{"rendered":"
N\u1ebfu \u0111\u1eb7t tr\u01b0\u1edbc m\u1eaft b\u1ea1n m\u1ed9t \u0111\u1ed1ng \u0111\u00e1 v\u00e0 s\u1eaft c\u1ee5c, b\u1ea1n c\u00f3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c h\u00f2n n\u00e0o l\u00e0 thi\u00ean th\u1ea1ch, h\u00f2n n\u00e0o l\u00e0 \u0111\u00e1 hay s\u1eaft t\u1ef1 nhi\u00ean kh\u00f4ng? Ch\u1eb3ng kh\u00f3 l\u1eafm \u0111\u00e2u. \u0110\u1ec3 \u00fd m\u1ed9t ch\u00fat, b\u1ea1n s\u1ebd th\u1ea5y thi\u00ean th\u1ea1ch c\u00f3 l\u1edbp v\u1ecf m\u1ecfng v\u00e0 nh\u1eefng r\u00e3nh kh\u00f4ng kh\u00ed r\u1ea5t \u0111\u1eb7c tr\u01b0ng. […]<\/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":[1,15],"tags":[],"class_list":["post-11033","post","type-post","status-publish","format-standard","hentry","category-general","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/11033","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=11033"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/11033\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=11033"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=11033"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=11033"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}