S\u00e9t hay ch\u1edbp c\u00f3 l\u00fac g\u00e2y tai n\u1ea1n cho con ng\u01b0\u1eddi. N\u0103m 1986 n\u01b0\u1edbc M\u1ef9 ph\u00f3ng ba qu\u1ea3 t\u00ean l\u1eeda v\u00e0o kh\u00f4ng trung b\u1ecb s\u00e9t \u0111\u00e1nh tr\u00fang. N\u0103m 1987, r\u1eebng \u0110\u1ea1i H\u01b0ng An L\u0129nh \u1edf N\u1ed9i M\u00f4ng T rung Qu\u1ed1c b\u1ecb s\u00e9t \u0111\u00e1nh g\u00e2y ch\u00e1y r\u1eebng. T r\u01b0a ng\u00e0y 12\/8\/1989 kho x\u0103ng Ho\u00e0ng \u0110\u1ea1o T rung Qu\u1ed1c b\u1ecb s\u00e9t \u0111\u00e1nh g\u00e2y s\u1ef1 c\u1ed1 v\u00e0 ho\u1ea3 ho\u1ea1n tr\u1ea7m tr\u1ecdng. S\u00e9t kh\u00f4ng nh\u1eefng \u0111\u01b0a l\u1ea1i t\u1ed5n th\u1ea5t kinh t\u1ebf l\u1edbn m\u00e0 c\u00f2n t\u1ea1o ra th\u01b0\u01a1ng vong r\u1ea5t \u0111\u00e1ng s\u1ee3. T heo th\u1ed1ng k\u00ea, to\u00e0n c\u1ea7u h\u1eb1ng n\u0103m c\u00f3 h\u01a1n 4000 ng\u01b0\u1eddi ch\u1ebft v\u00ec s\u00e9t. Ng\u00e0y nay con ng\u01b0\u1eddi ch\u01b0a c\u00f3 ph\u01b0\u01a1ng ph\u00e1p g\u00ec hi\u1ec7u qu\u1ea3 \u0111\u1ec3 ng\u0103n ng\u1eeba s\u00e9t, nh\u01b0ng n\u1ebfu c\u00f3 th\u1ec3 d\u1ef1 b\u00e1o s\u00e9t k\u1ecbp th\u1eddi v\u00e0 ch\u00ednh x\u00e1c th\u00ec c\u00f3 th\u1ec3 c\u00f3 nh\u1eefng \u0111\u1ed1i s\u00e1ch \u0111\u1ec3 tr\u00e1nh s\u00e9t h\u1eefu hi\u1ec7u, h\u1ea1n ch\u1ebf t\u1ed5n th\u1ea5t v\u00e0 th\u01b0\u01a1ng vong \u0111\u1ebfn m\u1ee9c th\u1ea5p nh\u1ea5t.<\/p>\n\n\n\n
V\u00ec s\u1ef1 h\u00ecnh th\u00e0nh s\u00e9t r\u1ea5t ph\u1ee9c t\u1ea1p, \u0111i\u1ec3m s\u00e9t \u0111\u00e1nh th\u01b0\u1eddng kh\u00f3 l\u01b0\u1eddng tr\u01b0\u1edbc, cho n\u00ean d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p d\u1ef1 b\u00e1o th\u1eddi ti\u1ebft th\u00f4ng th\u01b0\u1eddng l\u00e0 kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c. Ng\u00e0y nay trong d\u1ef1 b\u00e1o th\u1eddi ti\u1ebft c\u00f2n ch\u01b0a c\u00f3 n\u1ed9i dung d\u1ef1 b\u00e1o s\u00e9t. S\u1ef1 nghi\u00ean c\u1ee9u v\u1ec1 m\u1eb7t n\u00e0y c\u0169ng v\u1eeba m\u1edbi b\u1eaft \u0111\u1ea7u. Nh\u01b0ng \u1edf n\u01b0\u1edbc ngo\u00e0i kh\u00f4ng \u00edt n\u01b0\u1edbc ph\u00e1t tri\u1ec3n \u0111\u00e3 gi\u00e0nh \u0111\u01b0\u1ee3c nh\u1eefng th\u00e0nh t\u1ef1u \u0111\u00e1ng k\u1ec3 v\u1ec1 nghi\u00ean c\u1ee9u d\u1ef1 b\u00e1o s\u00e9t. Ph\u01b0\u01a1ng ph\u00e1p d\u1ef1 b\u00e1o s\u00e9t \u1edf m\u1ed9t s\u1ed1 n\u01b0\u1edbc \u0111\u00e3 ch\u00ednh th\u1ee9c \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u1eefng hi\u1ec7u qu\u1ea3 to l\u1edbn. V\u1eady d\u1ef1 b\u00e1o s\u00e9t \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n\n\n\n
D\u1ef1 b\u00e1o s\u00e9t \u1edf M\u1ef9 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u01b0 sau: T o\u00e0n qu\u1ed1c \u0111\u1eb7t t\u00e1m tr\u1ea1m gi\u00e1m s\u00e1t s\u00e9t. M\u1ed7i tr\u1ea1m \u0111\u1ec1u c\u00f3 \u0103ngten v\u00e0 m\u00e1y thu v\u00f4 tuy\u1ebfn, c\u00f2n c\u00f3 c\u1ea3 m\u00e1y t\u00ednh. M\u00e1y t\u00ednh c\u00e1c tr\u1ea1m \u0111\u1ec1u \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi m\u00e1y t\u00ednh trung t\u00e2m \u1edf New Y ork. C\u00e1c tr\u1ea1m d\u1ef1 b\u00e1o s\u1eed d\u1ee5ng \u0103ngten v\u00e0 m\u00e1y thu v\u00f4 tuy\u1ebfn \u0111\u1ec3 thu \u00e2m thanh ph\u00e1t ra khi m\u1eb7t \u0111\u1ea5t b\u1ecb s\u00e9t, m\u00e1y t\u00ednh ghi l\u1ea1i \u0111\u1ecba \u0111i\u1ec3m b\u1ecb s\u00e9t v\u00e0 \u00e1nh ch\u1edbp. M\u1ed7i tr\u1ea1m ti\u1ebfn h\u00e0nh ph\u00e2n t\u00edch \u00e1nh ch\u1edbp c\u1ee7a v\u00f9ng trung t\u00e2m s\u00e9t, sau \u0111\u00f3 b\u00e1o v\u1ec1 tr\u1ea1m m\u00e1y t\u00ednh trung t\u00e2m. M\u00e1y t\u00ednh trung t\u00e2m t\u1ed5ng h\u1ee3p th\u00f4ng tin c\u1ee7a c\u00e1c tr\u1ea1m r\u1ed3i v\u1ebd ra b\u1ea3n \u0111\u1ed3 s\u00e9t, t\u00ednh ra v\u1ecb tr\u00ed s\u1ea3n sinh s\u00e9t. Ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 d\u00f9ng b\u1ea3n \u0111\u1ed3 th\u1eddi ti\u1ebft n\u00e0y \u0111\u01b0a ra d\u1ef1 b\u00e1o s\u00e9t, tr\u01b0\u1edbc h\u1ebft l\u00e0 tr\u00e1nh v\u00f9ng s\u00e9t nguy hi\u1ec3m.<\/p>\n\n\n\n
M\u1ea5y n\u0103m g\u1ea7n \u0111\u00e2y C\u00f4ng ty kh\u00ed t\u01b0\u1ee3ng s\u00e9t<\/p>\n\n\n\n
Flanc\u01a1lin c\u1ee7a Ph\u00e1p c\u0169ng \u0111\u00e3 ch\u1ebf t\u1ea1o th\u00e0nh c\u00f4ng h\u1ec7 th\u1ed1ng thi\u1ebft b\u1ecb d\u1ef1 b\u00e1o s\u00e9t. H\u1ec7 th\u1ed1ng thi\u1ebft b\u1ecb n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0a ra d\u1ef1 b\u00e1o m\u1ea5y gi\u1edd tr\u01b0\u1edbc khi xu\u1ea5t hi\u1ec7n s\u00e9t, ph\u1ea1m vi d\u1ef1 b\u00e1o ch\u00ednh x\u00e1c t\u1eeb 1 – 3 km.<\/p>\n\n\n\n
H\u1ec7 th\u1ed1ng d\u1ef1 b\u00e1o s\u00e9t n\u00e0y d\u00f9ng m\u00e1y c\u1ea3m bi\u1ebfn c\u00f3 \u0111\u1ed9 nh\u1ea1y c\u1ea3m \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 th\u0103m d\u00f2 quang \u0111i\u1ec7n t\u1eeb s\u00e9t ph\u00e1t sinh ra. T rong m\u00e1y c\u1ea3m bi\u1ebfn c\u00f3 m\u00e1y t\u00ednh c\u00f3 th\u1ec3 ph\u00e2n t\u00edch \u0111\u01b0\u1ee3c s\u00f3ng ch\u1edbp, l\u1ecdc t\u1ea1p \u00e2m, ch\u1ec9 ghi l\u1ea1i t\u00edn hi\u1ec7u c\u00e1c lo\u1ea1i \u00e1nh ch\u1edbp h\u1ed3 quang c\u00f3 trong s\u00e9t. M\u1ed7i m\u00e1y c\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c s\u00f3ng ch\u1edbp c\u00e1ch xa 800 km. M\u00e1y c\u1ea3m bi\u1ebfn c\u1ee7a c\u00e1c n\u01a1i thu \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u, th\u00f4ng qua m\u1ea1ng l\u01b0\u1edbi trung chuy\u1ec3n t\u1ef1 \u0111\u1ed9ng truy\u1ec1n t\u01b0 li\u1ec7u \u0111\u1ebfn trung t\u00e2m m\u00e1y t\u00ednh \u1edf Pari. Qua ph\u00e2n t\u00edch bi\u00ean \u0111\u1ed9 s\u00f3ng v\u00e0 g\u00f3c c\u1ee7a s\u00e9t v\u1edbi m\u1eb7t \u0111\u1ea5t ta s\u1ebd bi\u1ebft \u0111\u01b0\u1ee3c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a m\u1ed7i l\u1ea7n s\u00e9t \u0111\u00e1nh, x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u1ecba \u0111i\u1ec3m, th\u1eddi gian, bi\u00ean \u0111\u1ed9, s\u00f3ng v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 quang c\u1ee7a s\u00e9t. Sau \u0111\u00f3 qua \u0111o \u0111\u1ea1c, t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c c\u01b0\u1eddng \u0111\u1ed9 s\u00f3ng \u00e2m thanh c\u1ee7a s\u00e9t, x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c qu\u1ef9 \u0111\u1ea1o s\u00e9t \u1edf khu v\u1ef1c tr\u00ean kh\u00f4ng trong ph\u1ea1m vi 800 km. Nh\u01b0 v\u1eady tr\u01b0\u1edbc khi x\u1ea3y ra s\u00e9t m\u1ea5y gi\u1edd \u0111\u00e3 c\u00f3 th\u1ec3 d\u1ef1 b\u00e1o \u0111\u01b0\u1ee3c tr\u01b0\u1edbc.<\/p>\n\n\n\n
Qua \u0111\u00e2y c\u00f3 th\u1ec3 th\u1ea5y, d\u1ef1 b\u00e1o s\u00e9t ch\u1ee7 y\u1ebfu \u1ee9ng d\u1ee5ng v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng c\u1ee7a k\u1ef9 thu\u1eadt cao, trong t\u01b0\u01a1ng lai kh\u00f4ng xa nh\u1ea5t \u0111\u1ecbnh c\u00f4ng t\u00e1c nghi\u00ean c\u1ee9u d\u1ef1 b\u00e1o s\u00e9t s\u1ebd ti\u1ebfn tri\u1ec3n m\u1ea1nh m\u1ebd. \u0110\u1ebfn l\u00fac \u0111\u00f3 trong n\u1ed9i dung d\u1ef1 b\u00e1o th\u1eddi ti\u1ebft s\u1ebd c\u00f3 th\u00eam n\u1ed9i dung d\u1ef1 b\u00e1o s\u00e9t.<\/p>\n\n\n\n
T \u1eeb kho\u00e1: D\u1ef1 b\u00e1o s\u00e9t.<\/p>\n","protected":false},"excerpt":{"rendered":"
S\u00e9t hay ch\u1edbp c\u00f3 l\u00fac g\u00e2y tai n\u1ea1n cho con ng\u01b0\u1eddi. N\u0103m 1986 n\u01b0\u1edbc M\u1ef9 ph\u00f3ng ba qu\u1ea3 t\u00ean l\u1eeda v\u00e0o kh\u00f4ng trung b\u1ecb s\u00e9t \u0111\u00e1nh tr\u00fang. N\u0103m 1987, r\u1eebng \u0110\u1ea1i H\u01b0ng An L\u0129nh \u1edf N\u1ed9i M\u00f4ng T rung Qu\u1ed1c b\u1ecb s\u00e9t \u0111\u00e1nh g\u00e2y ch\u00e1y r\u1eebng. T r\u01b0a ng\u00e0y 12\/8\/1989 kho x\u0103ng Ho\u00e0ng \u0110\u1ea1o T […]<\/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-10023","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\/10023","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=10023"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10023\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}