Khi t\u1eafm bi\u1ec3n, kh\u00f4ng may s\u1eb7c n\u01b0\u1edbc ta s\u1ebd c\u1ea3m th\u1ea5y n\u01b0\u1edbc bi\u1ec3n v\u1eeba m\u1eb7n v\u1eeba \u0111\u1eafng, kh\u00e1c ho\u00e0n to\u00e0n v\u1edbi n\u01b0\u1edbc m\u00e1y, n\u01b0\u1edbc s\u00f4ng v\u00e0 n\u01b0\u1edbc gi\u1ebfng ta th\u01b0\u1eddng d\u00f9ng.<\/p>\n\n\n\n
V\u00ec sao n\u01b0\u1edbc bi\u1ec3n l\u1ea1i m\u1eb7n?<\/p>\n\n\n\n
\u0110\u00f3 l\u00e0 v\u00ec trong n\u01b0\u1edbc bi\u1ec3n ho\u00e0 tan nhi\u1ec1u lo\u1ea1i mu\u1ed1i. N\u1ebfu ta c\u00f3 m\u1ed9t ch\u1eadu n\u01b0\u1edbc m\u00e1y v\u00e0 m\u1ed9t ch\u1eadu n\u01b0\u1edbc bi\u1ec3n, sau khi ph\u01a1i kh\u00f4 d\u01b0\u1edbi \u00e1nh n\u1eafng M\u1eb7t T r\u1eddi, s\u1ebd ph\u00e1t hi\u1ec7n ch\u1eadu n\u01b0\u1edbc m\u00e1y th\u00ec kh\u00f4 h\u1ebft, c\u00f2n d\u01b0\u1edbi \u0111\u00e1y ch\u1eadu n\u01b0\u1edbc bi\u1ec3n c\u00f3 m\u1ed9t l\u1edbp tr\u1eafng l\u1ea5p l\u00e1nh. \u0110\u00f3 l\u00e0 mu\u1ed1i.<\/p>\n\n\n\n
V\u1eady mu\u1ed1i trong n\u01b0\u1edbc bi\u1ec3n t\u1eeb \u0111\u00e2u m\u00e0 c\u00f3? V\u1ea5n \u0111\u1ec1 n\u00e0y hi\u1ec7n nay \u00fd ki\u1ebfn c\u1ee7a c\u00e1c nh\u00e0 khoa h\u1ecdc ch\u01b0a th\u1ed1ng nh\u1ea5t. Ch\u1ee7 y\u1ebfu c\u00f3 hai c\u00e1ch n\u00f3i: m\u1ed9t lo\u1ea1i cho r\u1eb1ng n\u01b0\u1edbc bi\u1ec3n ban \u0111\u1ea7u \u0111\u00e3 tan m\u1ed9t \u00edt mu\u1ed1i, nh\u01b0ng r\u1ea5t nh\u1ea1t. C\u00f2n n\u01b0\u1edbc bi\u1ec3n ng\u00e0y nay c\u00f3 nhi\u1ec1u mu\u1ed1i, nh\u1eefng mu\u1ed1i n\u00e0y t\u1eeb trong \u0111\u1ea5t \u0111\u00e1 c\u1ee7a l\u1ee5c \u0111\u1ecba, tan trong n\u01b0\u1edbc m\u01b0a ch\u1ea3y v\u00e0o khe su\u1ed1i, s\u00f4ng r\u1ed3i \u0111\u1ed5 v\u00e0o bi\u1ec3n. T h\u1eddi gian l\u00e2u, n\u01b0\u1edbc b\u1ecb b\u1ed1c h\u01a1i, c\u00f2n mu\u1ed1i d\u1ea7n d\u1ea7n t\u00edch lu\u1ef9 l\u1ea1i. Nh\u1eefng k\u1ebft qu\u1ea3 quan s\u00e1t ch\u1ee9ng t\u1ecf, h\u1eb1ng n\u0103m l\u01b0\u1ee3ng mu\u1ed1i s\u00f4ng h\u1ed3 \u0111\u1ed5 ra bi\u1ec3n kho\u1ea3ng 3,9 t\u1ec9 t\u1ea5n.<\/p>\n\n\n\n
M\u1ed9t \u00fd ki\u1ebfn kh\u00e1c l\u1ea1i cho r\u1eb1ng n\u01b0\u1edbc bi\u1ec3n ban \u0111\u1ea7u v\u1ed1n \u0111\u00e3 m\u1eb7n. Nh\u1eefng nh\u00e0 khoa h\u1ecdc \u0111\u01b0a ra c\u00e1ch n\u00f3i n\u00e0y l\u00e0 h\u1ecd \u0111\u00e3 \u0111o s\u1ef1 bi\u1ebfn \u0111\u1ed5i c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n mu\u1ed1i trong n\u01b0\u1edbc bi\u1ec3n t\u1eeb l\u00e2u. H\u1ecd ph\u00e1t hi\u1ec7n th\u00e0nh ph\u1ea7n mu\u1ed1i trong n\u01b0\u1edbc bi\u1ec3n kh\u00f4ng t\u0103ng l\u00ean theo th\u1eddi gian. Nh\u01b0ng trong nh\u1eefng th\u1eddi k\u1ef3 ph\u00e1t tri\u1ec3n kh\u00e1c nhau c\u1ee7a Tr\u00e1i \u0110\u1ea5t th\u00ec s\u1ed1 l\u01b0\u1ee3ng v\u00e0 th\u00e0nh ph\u1ea7n mu\u1ed1i trong n\u01b0\u1edbc bi\u1ec3n c\u00f3 kh\u00e1c nhau. Nguy\u00ean nh\u00e2n c\u1ee7a s\u1ef1 bi\u1ebfn \u0111\u1ed5i n\u00e0y \u0111\u1ebfn nay v\u1eabn \u0111ang t\u00ecm ki\u1ebfm.<\/p>\n\n\n\n
N\u01b0\u1edbc bi\u1ec3n th\u1ef1c ch\u1ea5t c\u00f3 bao nhi\u00eau mu\u1ed1i? C\u0103n c\u1ee9 th\u00ed nghi\u1ec7m b\u00ecnh qu\u00e2n 1.000 g n\u01b0\u1edbc bi\u1ec3n ch\u1ee9a 35 g mu\u1ed1i, trong \u0111\u00f3 ch\u1ee7 y\u1ebfu l\u00e0 mu\u1ed1i \u0103n (NaCl) v\u00ec n\u01b0\u1edbc bi\u1ec3n ch\u1ee9a nhi\u1ec1u mu\u1ed1i \u0103n n\u00ean c\u00f3 v\u1ecb m\u1eb7n, ti\u1ebfp theo l\u00e0 magie clorua (MgCl2), magie sunfat, canxi sunfat, kali sunfat v\u00e0 magie oxit\u2026 Ch\u00fang g\u00e2y n\u00ean v\u1ecb \u0111\u1eafng c\u1ee7a n\u01b0\u1edbc bi\u1ec3n.<\/p>\n\n\n\n
Nh\u01b0ng \u1edf \u0110\u1ea1i T \u00e2y D\u01b0\u01a1ng c\u00e1ch \u0111\u00f4ng b\u1eafc Cu Ba kh\u00f4ng xa c\u00f3 m\u1ed9t khu v\u1ef1c bi\u1ec3n \u0111\u01b0\u1eddng k\u00ednh kho\u1ea3ng 30 m c\u00f3 m\u1ed9t v\u00f9ng n\u01b0\u1edbc ng\u1ecdt. Thuy\u1ec1n b\u00e8 qua l\u1ea1i th\u01b0\u1eddng \u0111\u1ebfn \u0111\u00f3 \u0111\u1ec3 l\u1ea5y n\u01b0\u1edbc ng\u1ecdt.<\/p>\n\n\n\n
Nguy\u00ean nh\u00e2n l\u00e0 \u0111\u00e1y bi\u1ec3n \u1edf \u0111\u00f3 c\u00f3 m\u1ed9t su\u1ed1i n\u01b0\u1edbc ng\u1ea7m r\u1ea5t l\u1edbn. Su\u1ed1i n\u01b0\u1edbc ng\u1ea7m \u1edf d\u01b0\u1edbi t\u1ea7ng \u0111\u00e1 c\u1ee7a \u0111\u00e1y bi\u1ec3n. N\u01b0\u1edbc ng\u1ea7m \u00f9n l\u00ean v\u1edbi l\u01b0u l\u01b0\u1ee3ng 40 m3\/s, \u0111\u1ea9y n\u01b0\u1edbc m\u1eb7n ra chung quanh h\u00ecnh th\u00e0nh m\u1ed9t khu v\u1ef1c n\u01b0\u1edbc ng\u1ecdt.<\/p>\n\n\n\n
Nh\u01b0ng kh\u00f4ng ph\u1ea3i ch\u1ed7 n\u00e0o c\u0169ng c\u00f3 \u0111i\u1ec1u ki\u1ec7n nh\u01b0 th\u1ebf, trong bi\u1ec3n c\u00f3 n\u01b0\u1edbc ng\u1ecdt l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng v\u00f4 c\u00f9ng hi\u1ebfm th\u1ea5y.<\/p>\n\n\n\n
T \u1eeb kho\u00e1: Mu\u1ed1i bi\u1ec3n.<\/p>\n","protected":false},"excerpt":{"rendered":"
Khi t\u1eafm bi\u1ec3n, kh\u00f4ng may s\u1eb7c n\u01b0\u1edbc ta s\u1ebd c\u1ea3m th\u1ea5y n\u01b0\u1edbc bi\u1ec3n v\u1eeba m\u1eb7n v\u1eeba \u0111\u1eafng, kh\u00e1c ho\u00e0n to\u00e0n v\u1edbi n\u01b0\u1edbc m\u00e1y, n\u01b0\u1edbc s\u00f4ng v\u00e0 n\u01b0\u1edbc gi\u1ebfng ta th\u01b0\u1eddng d\u00f9ng. V\u00ec sao n\u01b0\u1edbc bi\u1ec3n l\u1ea1i m\u1eb7n? \u0110\u00f3 l\u00e0 v\u00ec trong n\u01b0\u1edbc bi\u1ec3n ho\u00e0 tan nhi\u1ec1u lo\u1ea1i mu\u1ed1i. N\u1ebfu ta c\u00f3 m\u1ed9t ch\u1eadu n\u01b0\u1edbc m\u00e1y […]<\/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":[15,19],"tags":[],"class_list":["post-10181","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-tu-nhien"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10181","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=10181"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10181\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10181"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10181"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}