{"id":10019,"date":"2021-11-21T18:56:20","date_gmt":"2021-11-21T11:56:20","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=10019"},"modified":"2021-11-21T19:38:34","modified_gmt":"2021-11-21T12:38:34","slug":"vi-sao-may-chuc-nam-truoc-da-co-the-du-doan-co-nhung-tran-han-va-lut-dac-biet","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/vi-sao-may-chuc-nam-truoc-da-co-the-du-doan-co-nhung-tran-han-va-lut-dac-biet\/","title":{"rendered":"V\u00ec sao m\u1ea5y ch\u1ee5c n\u0103m tr\u01b0\u1edbc \u0111\u00e3 c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n c\u00f3 nh\u1eefng tr\u1eadn h\u1ea1n v\u00e0 l\u1ee5t \u0111\u1eb7c bi\u1ec7t?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Hai k\u1ef9 s\u01b0 cao c\u1ea5p S\u1edf kh\u00ed t\u01b0\u1ee3ng T h\u01b0\u1ee3ng H\u1ea3i n\u0103m 1965 \u0111\u00e3 <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">vi\u1ebft b\u00e0i<\/a> &#8220;Nghi\u00ean c\u1ee9u v\u1ec1 xu th\u1ebf di\u1ec5n bi\u1ebfn t\u00ecnh h\u00ecnh h\u1ea1n v\u00e0 l\u1ee5t m\u00f9a h\u00e8 khu v\u1ef1c H\u1ea1 l\u01b0u T r\u01b0\u1eddng Giang&#8221; \u0111\u0103ng tr\u00ean b\u00e1o &#8220;\u0110\u1ecba l\u00fd&#8221; k\u1ef3 hai. B\u00e0i b\u00e1o \u0111\u00f3 \u0111\u00e3 \u0111\u01b0a ra b\u1ee9c tranh xu th\u1ebf h\u1ea1n v\u00e0 l\u1ee5t v\u00f9ng H\u1ea1 l\u01b0u s\u00f4ng Tr\u01b0\u1eddng Giang nh\u01b0 sau: &#8220;B\u1eaft \u0111\u1ea7u t\u1eeb n\u0103m 1963 c\u00f3 kh\u1ea3 n\u0103ng h\u1ea1n h\u00e1n ph\u00e1t tri\u1ec3n. T \u1eeb n\u0103m 1969 tr\u1edf \u0111i gi\u1ea3m d\u1ea7n v\u1ec1 b\u00ecnh th\u01b0\u1eddng. Sau n\u0103m 1973 h\u1ea1n l\u1ea1i ph\u00e1t tri\u1ec3n. T h\u1eddi gian t\u1eeb 1978 &#8211; 1980 h\u1ea1n h\u00e1n c\u00f3 th\u1ec3 n\u1eb7ng d\u1ea7n. Sau n\u0103m 1982 chuy\u1ec3n sang ph\u00e1t tri\u1ec3n l\u1ee5t nhi\u1ec1u (ho\u1eb7c m\u01b0a nhi\u1ec1u)\u2026 T rong th\u1eddi gian 1991 &#8211; 1993 c\u00f3 th\u1ec3 b\u1ecb l\u1ee5t nghi\u00eam tr\u1ecdng&#8221;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01a1n hai m\u01b0\u01a1i n\u0103m qua ki\u1ec3m nghi\u1ec7m l\u1ea1i d\u1ef1 b\u00e1o n\u00e0y ng\u01b0\u1eddi ta r\u1ea5t th\u00e1n ph\u1ee5c, v\u00ec kh\u00f4ng nh\u1eefng xu th\u1ebf h\u1ea1n v\u00e0 l\u1ee5t c\u0103n b\u1ea3n \u0111\u00fang, m\u00e0 nh\u1eefng tr\u1eadn h\u1ea1n l\u1edbn n\u0103m 1987 v\u00e0 tr\u1eadn l\u1ee5t l\u1edbn n\u0103m 1991 d\u1ef1 b\u00e1o c\u0169ng r\u1ea5t ch\u00ednh x\u00e1c. M\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u h\u1ecfi, d\u1ef1 b\u00e1o d\u00e0i h\u1ea1n nh\u01b0 th\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c d\u1ef1 b\u00e1o d\u00e0i h\u1ea1n \u0111\u00fang, h\u1ecd ph\u1ea3i thu nh\u1eadn m\u1ed9t l\u01b0\u1ee3ng t\u01b0 li\u1ec7u r\u1ea5t l\u1edbn. T r\u01b0\u1edbc h\u1ebft thu th\u1eadp c\u00e1c b\u1ea3n tin t\u1eeb trong Huy\u1ec7n ch\u00ed c\u1ee7a T h\u01b0\u1ee3ng H\u1ea3i, Nam H\u1ed9i, T \u00f4ng Minh, Kim S\u01a1n, t\u1eeb Ph\u1ee7 ch\u00ed c\u1ee7a T \u00f9ng Giang, T \u00f4 Ch\u00e2u, H\u00e0ng Ch\u00e2u, t\u1eeb T h\u00f4ng ch\u00ed Giang T \u00f4,<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Giang Nam, t\u1eeb T h\u00f4ng gi\u00e1m t\u01b0 tr\u1ecb, t\u1eeb T h\u00f4ng b\u00e1o V\u0103n hi\u1ebfn, t\u1eeb T uy\u1ec3n t\u1eadp b\u1ea3n \u0111\u1ed3 c\u1ed5 kim, t\u1eeb c\u00e1c b\u1ea3n th\u1ea3o T h\u1eadp qu\u1ed1c xu\u00e2n thu, nam \u0110\u01b0\u1eddng thi, T hanh s\u1eed, thu th\u1eadp r\u1ed9ng r\u00e3i c\u00e1c ghi ch\u00e9p v\u1ec1 h\u1ea1n h\u00e1n v\u00e0 l\u1ee5t t\u1eeb n\u0103m 903 TCN, t\u1ee9c l\u00e0 th\u1eddi Chu Hi\u1ebfu V\u01b0\u01a1ng n\u0103m th\u1ee9 7 \u0111\u1ebfn n\u0103m 1909, t\u1eeb th\u1eddi T hanh T uy\u00ean T h\u1ed1ng n\u0103m th\u1ee9 ba t\u1ed5ng c\u1ed9ng g\u1ed3m 2812 n\u0103m v\u00e0 nh\u1eefng ghi ch\u00e9p kh\u00ed t\u01b0\u1ee3ng c\u1ee7a Th\u01b0\u1ee3ng H\u1ea3i t\u1eeb n\u0103m 1873 \u0111\u1ebfn nay.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sau \u0111\u00f3 chia c\u00e1c tr\u1eadn thi\u00ean tai th\u00e0nh n\u0103m c\u1ea5p: h\u1ea1n l\u1edbn, b\u00ecnh th\u01b0\u1eddng, l\u1ee5t, l\u1ee5t l\u1edbn v\u00e0 d\u00f9ng c\u00e1c s\u1ed1: -2, -1, 0, 1, 2 \u0111\u1ec3 bi\u1ec3u th\u1ecb, d\u00f9ng c\u00e1c \u0111i\u1ec3m v\u1ebd th\u00e0nh \u0111\u01b0\u1eddng cong. T\u1eeb \u0111\u01b0\u1eddng cong n\u00e0y th\u1ea5y \u0111\u01b0\u1ee3c l\u1ecbch s\u1eed h\u1ea1n h\u00e1n v\u00e0 l\u1ee5t th\u00e0nh xu th\u1ebf v\u00e0 t\u00ednh chu k\u1ef3 r\u00f5 r\u00e0ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">G\u1ecdi l\u00e0 &#8220;T \u00ednh xu th\u1ebf&#8221; t\u1ee9c l\u00e0 trong m\u1ed9t kho\u1ea3ng th\u1eddi gian l\u1ea5y h\u1ea1n h\u00e1n l\u00e0m ch\u1ee7, c\u00f3 \u0111o\u1ea1n th\u1eddi gian l\u1ea5y \u0111\u1eb7c \u0111i\u1ec3m bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu l\u1ee5t l\u00e0m ch\u1ee7. C\u00f2n &#8220;T \u00ednh chu k\u1ef3 chu\u1ea9n&#8221; t\u1ee9c l\u00e0 th\u1eddi gian gi\u1eefa th\u1eddi k\u1ef3 h\u1ea1n h\u00e1n n\u00e0y v\u00e0 th\u1eddi k\u1ef3 h\u1ea1n h\u00e1n sau (ho\u1eb7c th\u1eddi k\u1ef3 l\u0169 l\u1ee5t n\u00e0y v\u1edbi th\u1eddi k\u1ef3 l\u0169 l\u1ee5t sau), c\u00f3 s\u1ed1 n\u0103m c\u00e1ch bi\u1ec7t c\u1ed1 \u0111\u1ecbnh. N\u1ebfu khu v\u1ef1c H\u1ea1 l\u01b0u T r\u01b0\u1eddng Giang trong chu k\u1ef3 d\u00e0i kho\u1ea3ng 1000 n\u0103m, c\u00f3 nh\u1eefng chu k\u1ef3 v\u1eeba t\u1eeb 100 -110 n\u0103m, 30 &#8211; 60 n\u0103m, th\u00ec c\u0169ng c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng chu k\u1ef3 ng\u1eafn 2 &#8211; 3 n\u0103m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi t\u00ecm \u0111\u01b0\u1ee3c quy lu\u1eadt c\u00f3 t\u00ednh xu th\u1ebf v\u00e0 chu k\u1ef3 chu\u1ea9n n\u00e0y, c\u00f3 th\u1ec3 c\u0103n c\u1ee9 ph\u00e9p &#8220;t\u01b0\u01a1ng t\u1ef1&#8221; \u0111\u1ec3 t\u00ecm ra th\u1eddi \u0111i\u1ec3m \u0111\u1ecbnh \u0111\u01b0a ra d\u1ef1 b\u00e1o, t\u1ee9c l\u00e0 m\u1ed9t kho\u1ea3ng th\u1eddi gian tr\u01b0\u1edbc n\u0103m 1965 v\u00e0 \u0111o\u1ea1n l\u1ecbch s\u1eed h\u1ea1n h\u00e1n v\u00e0 l\u0169 l\u1ee5t bi\u1ebfn \u0111\u1ed5i t\u01b0\u01a1ng t\u1ef1 nh\u1ea5t. K\u1ebft qu\u1ea3 ph\u00e1t hi\u1ec7n s\u1ef1 bi\u1ebfn \u0111\u1ed5i h\u1ea1n h\u00e1n v\u00e0 l\u0169 l\u1ee5t tr\u01b0\u1edbc n\u0103m 1965 gi\u1ed1ng v\u1edbi s\u1ef1 bi\u1ebfn \u0111\u1ed5i h\u1ea1n h\u00e1n v\u00e0 l\u0169 l\u1ee5t t\u1eeb n\u0103m 950 &#8211; 1000. \u0110\u1ebfn \u0111\u00e2y l\u1ea1i c\u0103n c\u1ee9 xu th\u1ebf di\u1ec5n bi\u1ebfn k\u00e9o d\u00e0i c\u1ee7a h\u1ea1n h\u00e1n v\u00e0 l\u0169 l\u1ee5t t\u1eeb n\u0103m 950 &#8211; 1000 T CN \u0111\u1ec3 d\u1ef1 b\u00e1o kh\u00ed h\u1eadu c\u1ee7a th\u1eddi k\u1ef3 t\u1eeb 20 \u0111\u1ebfn 30 n\u0103m. \u1ede \u0111\u00e2y c\u1ea7n n\u00f3i th\u00eam, ngo\u00e0i c\u0103n c\u1ee9 v\u00e0o \u0111\u01b0\u1eddng cong di\u1ec5n bi\u1ebfn h\u1ea1n h\u00e1n v\u00e0 l\u0169 l\u1ee5t \u0111\u1ec3 \u0111\u01b0a ra d\u1ef1 b\u00e1o, th\u1ef1c ra trong th\u1ef1c t\u1ebf kh\u00f4ng ph\u1ea3i khi n\u00e0o c\u0169ng l\u1eb7p l\u1ea1i \u0111\u00fang nh\u01b0 th\u1ebf. B\u1edfi v\u00ec qu\u00e1 tr\u00ecnh bi\u1ebfn \u0111\u1ed5i trong t\u01b0\u01a1ng lai c\u00f3 l\u00fac kh\u00f4ng l\u1eb7p l\u1ea1i quy lu\u1eadt \u0111\u00e3 xu\u1ea5t hi\u1ec7n tr\u01b0\u1edbc \u0111\u00e2y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f9ng v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a khoa h\u1ecdc k\u1ef9 thu\u1eadt hi\u1ec7n \u0111\u1ea1i, c\u00e1c nh\u00e0 kh\u00ed h\u1eadu h\u1ecdc \u0111ang c\u1ed1 g\u1eafng x\u00e2y d\u1ef1ng m\u1ed9t m\u00f4 h\u00ecnh kh\u00ed h\u1eadu bi\u1ebfn \u0111\u1ed5i c\u00f3 c\u0103n c\u1ee9, sau \u0111\u00f3 d\u00f9ng m\u00e1y t\u00ednh si\u00eau c\u1ea5p \u0111\u1ec3 d\u1ef1 b\u00e1o xu th\u1ebf bi\u1ebfn \u0111\u1ed5i h\u1ea1n h\u00e1n v\u00e0 l\u0169 l\u1ee5t trong t\u01b0\u01a1ng lai. D\u1ef1 b\u00e1o n\u00e0y sau khi \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m nghi\u1ec7m c\u01a1 b\u1ea3n ch\u00ednh x\u00e1c, ch\u00fang ta m\u1edbi c\u00f3 th\u1ec3 n\u00f3i th\u1eddi \u0111\u1ea1i d\u1ef1 b\u00e1o th\u1eddi ti\u1ebft d\u00e0i h\u1ea1n \u0111\u00e3 \u0111\u1ebfn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T \u1eeb kho\u00e1: D\u1ef1 b\u00e1o d\u00e0i h\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hai k\u1ef9 s\u01b0 cao c\u1ea5p S\u1edf kh\u00ed t\u01b0\u1ee3ng T h\u01b0\u1ee3ng H\u1ea3i n\u0103m 1965 \u0111\u00e3 vi\u1ebft b\u00e0i &#8220;Nghi\u00ean c\u1ee9u v\u1ec1 xu th\u1ebf di\u1ec5n bi\u1ebfn t\u00ecnh h\u00ecnh h\u1ea1n v\u00e0 l\u1ee5t m\u00f9a h\u00e8 khu v\u1ef1c H\u1ea1 l\u01b0u T r\u01b0\u1eddng Giang&#8221; \u0111\u0103ng tr\u00ean b\u00e1o &#8220;\u0110\u1ecba l\u00fd&#8221; k\u1ef3 hai. B\u00e0i b\u00e1o \u0111\u00f3 \u0111\u00e3 \u0111\u01b0a ra b\u1ee9c tranh xu th\u1ebf h\u1ea1n [&hellip;]<\/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-10019","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\/10019","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=10019"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10019\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10019"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10019"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10019"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}