B\u00f3ng \u0111\u00e8n \u0111i\u1ec7n trong nh\u00e0 n\u1ebfu b\u1ed7ng nhi\u00ean v\u1ee5t t\u1eaft, bao gi\u1edd ch\u00fang ta c\u0169ng ki\u1ec3m tra tr\u01b0\u1edbc ti\u00ean c\u1ea7u ch\u00ec c\u00f3 b\u1ecb ch\u00e1y hay kh\u00f4ng, tuy\u1ec7t \u0111\u1ea1i \u0111a s\u1ed1 c\u00e1c tr\u1ee5c tr\u1eb7c \u0111\u1ec1u t\u1eeb ch\u1ed7 \u0111\u00f3 m\u00e0 ra. C\u1ea7u ch\u00ec d\u1ec5 b\u1ecb ch\u00e1y nh\u01b0 v\u1eady, t\u1ea1i sao kh\u00f4ng th\u1ec3 thay n\u00f3 b\u1eb1ng m\u1ed9t lo\u1ea1i d\u00e2y kim lo\u1ea1i kh\u00f4ng d\u1ec5 ch\u00e1y r\u1eddi nh\u1ec9? Th\u1ef1c ra, khi c\u1ea7u ch\u00ec b\u1ecb ch\u00e1y ch\u00ednh l\u00e0 th\u1ec3 hi\u1ec7n t\u00e1c d\u1ee5ng b\u1ea3o v\u1ec7 an to\u00e0n c\u1ee7a n\u00f3 \u0111\u1ea5y.<\/p>\n\n\n\n
C\u1ea7u ch\u00ec l\u00e0 m\u1ed9t lo\u1ea1i d\u00e2y h\u1ee3p kim c\u00f3 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y r\u1ea5t th\u1ea5p. L\u1eafp c\u1ea7u ch\u00ec \u1edf ngo\u00e0i c\u00f4ng t\u01a1 \u0111i\u1ec7n gia d\u1ee5ng th\u00ec c\u00f3 th\u1ec3 h\u1ea1n ch\u1ebf c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a d\u00f2ng \u0111i\u1ec7n trong m\u1ea1ch \u0111i\u1ec7n v\u00e0o trong m\u1ed9t ph\u1ea1m vi an to\u00e0n. Ch\u00fang ta bi\u1ebft r\u1eb1ng, d\u00f9ng \u0111i\u1ec7n qu\u00e1 nhi\u1ec1u, ho\u1eb7c trong m\u1ea1ch \u0111i\u1ec7n x\u1ea3y ra ch\u1eadp m\u1ea1ch, s\u1ebd d\u1eabn \u0111\u1ebfn d\u00f2ng \u0111i\u1ec7n qu\u00e1 l\u1edbn trong m\u1ea1ch \u0111i\u1ec7n. \u0110i\u1ec1u \u0111\u00f3 v\u00f4 c\u00f9ng nguy hi\u1ec3m. Ch\u1eb3ng nh\u1eefng n\u00f3 c\u00f3 th\u1ec3 h\u1ee7y ho\u1ea1i c\u00e1c lo\u1ea1i \u0111\u1ed3 d\u00f9ng \u0111i\u1ec7n, hi\u1ec7u \u1ee9ng nhi\u1ec7t \u0111o d\u00f2ng \u0111i\u1ec7n sinh ra c\u00f2n c\u00f3 th\u1ec3 l\u00e0m cho tr\u00ean d\u00e2y d\u1eabn sinh ra qu\u00e1 nhi\u1ec1u nhi\u1ec7t l\u01b0\u1ee3ng, \u0111\u1ed1t ch\u00e1y l\u1edbp v\u1ecf c\u00e1ch \u0111i\u1ec7n c\u1ee7a d\u00e2y d\u1eabn. M\u1ed9t khi l\u1edbp v\u1ecf \u0111\u00f3 m\u1ea5t \u0111i t\u00e1c d\u1ee5ng c\u00e1ch \u0111i\u1ec7n th\u00ec c\u00f3 th\u1ec3 x\u1ea3y ra m\u1ed9t lo\u1ea1t s\u1ef1 c\u1ed1 v\u1ec1 \u0111i\u1ec7n nh\u01b0 ch\u1eadp m\u1ea1ch, h\u1edf \u0111i\u1ec7n v.v. g\u00e2y n\u00ean h\u1eadu qu\u1ea3 kh\u00f4ng l\u01b0\u1eddng \u0111\u01b0\u1ee3c nh\u01b0 ho\u1ea3 ho\u1ea1n, \u0111i\u1ec7n gi\u1eadt v.v.<\/p>\n\n\n\n
L\u1eafp c\u1ea7u ch\u00ec v\u00e0o trong m\u1ea1ch \u0111i\u1ec7n th\u00ec c\u00f3 th\u1ec3 ph\u00f2ng ng\u1eeba m\u1ed9t c\u00e1ch h\u1eefu hi\u1ec7u c\u00e1c s\u1ef1 c\u1ed1 nh\u01b0 v\u1eady x\u1ea3y ra. Khi c\u00f3 m\u1ed9t d\u00f2ng \u0111i\u1ec7n m\u1ea1nh ch\u1ea1y qua, khi qua c\u1ea7u ch\u00ec n\u00f3 s\u1ebd sinh ra m\u1ed9t l\u01b0\u1ee3ng nhi\u1ec7t l\u1edbn tr\u00ean c\u1ea7u ch\u00ec, m\u00e0 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a c\u1ea7u ch\u00ec l\u1ea1i th\u1ea5p h\u01a1n c\u1ee7a d\u00e2y kim lo\u1ea1i trong d\u00e2y d\u1eabn, m\u1ed9t khi d\u00f2ng \u0111i\u1ec7n v\u01b0\u1ee3t qu\u00e1 m\u1ed9t gi\u00e1 tr\u1ecb nh\u1ea5t \u0111\u1ecbnh, c\u1ea7u ch\u00ec s\u1ebd b\u1ecb n\u00f3ng ch\u1ea3y, m\u1ea1ch \u0111i\u1ec7n c\u0169ng theo \u0111\u00f3 m\u00e0 b\u1ecb c\u1eaft \u0111\u1ee9t, d\u00f2ng \u0111i\u1ec7n m\u1ea1nh \u0111\u00f3 kh\u00f4ng th\u1ec3 \u0111i v\u00e0o m\u1ea1ch \u0111i\u1ec7n s\u1eed d\u1ee5ng, tr\u00e1nh cho c\u00e1c lo\u1ea1i s\u1ef1 c\u1ed1 x\u1ea3y ra. N\u1ebfu d\u00f9ng d\u00e2y \u0111\u1ed3ng thay cho c\u1ea7u ch\u00ec, \u0111i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a d\u00e2y \u0111\u1ed3ng r\u1ea5t cao, cho d\u00f9 c\u00f3 d\u00f2ng \u0111i\u1ec7n m\u1ea1nh \u0111i v\u00e0o c\u0169ng kh\u00f4ng b\u1ecb n\u00f3ng ch\u1ea3y, kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch t\u1ef1 \u0111\u1ed9ng c\u1eaft \u0111\u1ee9t d\u00f2ng \u0111i\u1ec7n, d\u1ec5 x\u1ea3y ra nguy hi\u1ec3m.<\/p>\n\n\n\n
C\u1ed1 nhi\u00ean, c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi nh\u1eefng n\u01a1i kh\u00e1c nhau, nh\u1eefng \u0111\u1ed3 d\u00f9ng \u0111i\u1ec7n kh\u00e1c nhau c\u0169ng kh\u00f4ng nh\u01b0 nhau. V\u00ec v\u1eady, ph\u1ea3i c\u0103n c\u1ee9 v\u00e0o t\u00ecnh h\u00ecnh c\u1ee5 th\u1ec3 m\u00e0 ch\u1ecdn c\u1ea7u ch\u00ec c\u00f3 quy c\u00e1ch kh\u00e1c nhau. \u0110\u01b0\u1eddng k\u00ednh c\u1ea7u ch\u00ec c\u00e0ng l\u1edbn, d\u00f2ng \u0111i\u1ec7n m\u00e0 n\u00f3 cho ph\u00e9p \u0111i qua c\u0169ng c\u00e0ng l\u1edbn. Th\u00f4ng th\u01b0\u1eddng ch\u1ecdn d\u00f9ng d\u00f2ng \u0111i\u1ec7n quy \u0111\u1ecbnh c\u1ee7a c\u1ea7u ch\u00ec ph\u1ea3i l\u1edbn h\u01a1n d\u00f2ng \u0111i\u1ec7n c\u00f4ng t\u00e1c tr\u00ean m\u1ea1ch \u0111i\u1ec7n. N\u1ebfu d\u00f2ng \u0111i\u1ec7n quy \u0111\u1ecbnh c\u1ee7a c\u1ea7u ch\u00ec \u0111\u01b0\u1ee3c ch\u1ecdn m\u00e0 qu\u00e1 nh\u1ecf th\u00ec tr\u00ean m\u1ea1ch \u0111i\u1ec7n kh\u00f4ng th\u1ec3 c\u00f3 d\u00f2ng \u0111i\u1ec7n v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 c\u1ea7n thi\u1ebft; ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu ch\u1ecdn d\u00f9ng d\u00f2ng \u0111i\u1ec7n quy \u0111\u1ecbnh c\u1ee7a c\u1ea7u ch\u00ec qu\u00e1 l\u1edbn th\u00ec l\u1ea1i kh\u00f4ng l\u00e0m \u0111\u01b0\u1ee3c t\u00e1c d\u1ee5ng b\u1ea3o hi\u1ec3m.<\/p>\n\n\n\n
Tr\u00ean c\u00e1c \u0111\u1ed3 \u0111i\u1ec7n gia d\u1ee5ng th\u01b0\u1eddng c\u00f3 ghi tr\u1ecb s\u1ed1 c\u1ee7a c\u00f4ng su\u1ea5t v\u00e0 d\u00f2ng \u0111i\u1ec7n quy \u0111\u1ecbnh. \u0110\u00f3 t\u1ee9c l\u00e0 c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a d\u00f2ng \u0111i\u1ec7n c\u1ea7n thi\u1ebft cho \u0111\u1ed3 \u0111i\u1ec7n gia d\u1ee5ng ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng. Cho n\u00ean ng\u01b0\u1eddi ta c\u0169ng l\u1eafp c\u1ea7u ch\u00ec trong r\u1ea5t nhi\u1ec1u \u0111\u1ed3 d\u00f9ng \u0111i\u1ec7n. Khi d\u00f2ng \u0111i\u1ec7n qu\u00e1 l\u1edbn \u0111i qua n\u00f3, c\u1ea7u ch\u00ec s\u1ebd t\u1ef1 \u0111\u1ed9ng c\u1eaft m\u1ea1ch, b\u1ea3o v\u1ec7 \u0111\u1ed3 d\u00f9ng \u0111i\u1ec7n kh\u1ecfi b\u1ecb t\u1ed5n h\u1ea1i.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: C\u1ea7u ch\u00ec; D\u00f2ng \u0111i\u1ec7n.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
B\u00f3ng \u0111\u00e8n \u0111i\u1ec7n trong nh\u00e0 n\u1ebfu b\u1ed7ng nhi\u00ean v\u1ee5t t\u1eaft, bao gi\u1edd ch\u00fang ta c\u0169ng ki\u1ec3m tra tr\u01b0\u1edbc ti\u00ean c\u1ea7u ch\u00ec c\u00f3 b\u1ecb ch\u00e1y hay kh\u00f4ng, tuy\u1ec7t \u0111\u1ea1i \u0111a s\u1ed1 c\u00e1c tr\u1ee5c tr\u1eb7c \u0111\u1ec1u t\u1eeb ch\u1ed7 \u0111\u00f3 m\u00e0 ra. C\u1ea7u ch\u00ec d\u1ec5 b\u1ecb ch\u00e1y nh\u01b0 v\u1eady, t\u1ea1i sao kh\u00f4ng th\u1ec3 thay n\u00f3 b\u1eb1ng m\u1ed9t lo\u1ea1i […]<\/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":[15,7],"tags":[],"class_list":["post-5718","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5718","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=5718"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5718\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=5718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=5718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=5718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}