Ng\u00e0y nay c\u00e1c n\u01b0\u1edbc tr\u00ean th\u1ebf gi\u1edbi th\u01b0\u1eddng d\u00f9ng D\u01b0\u01a1ng l\u1ecbch, \u0111\u00f3 l\u00e0 “L\u1ecbch Julius” do ng\u01b0\u1eddi La M\u00e3 l\u00e0m th\u00e0nh. Trong thi\u00ean v\u0103n h\u1ecdc l\u1ea5y kho\u1ea3ng c\u00e1ch th\u1eddi gian Tr\u00e1i \u0110\u1ea5t quay quanh M\u1eb7t Tr\u1eddi t\u1eeb \u0111i\u1ec3m xu\u00e2n ph\u00e2n tr\u1edf v\u1ec1 \u0111i\u1ec3m xu\u00e2n ph\u00e2n l\u00e0m m\u1ed9t n\u0103m ch\u00ed tuy\u1ebfn, \u0111\u1ed9 d\u00e0i c\u1ee7a n\u00f3 l\u00e0 365, 2422 ng\u00e0y. Nh\u01b0ng \u0111\u1ed9 d\u00e0i b\u00ecnh qu\u00e2n n\u0103m l\u1ecbch c\u1ee7a Julius ch\u1ec9 c\u00f3 365, 25 ng\u00e0y, so v\u1edbi n\u0103m ch\u00ed tuy\u1ebfn m\u1ed7i n\u0103m nhi\u1ec1u h\u01a1n 11 ph\u00fat 14 gi\u00e2y, do \u0111\u00f3 s\u1ea3n sinh ra sai s\u1ed1. T\u1eeb n\u0103m 46 tr\u01b0\u1edbc C\u00f4ng nguy\u00ean t\u00edch lu\u1ef9 \u0111\u1ebfn th\u1ebf k\u1ef7 16 ch\u00eanh nhau h\u01a1n 10 ng\u00e0y. \u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y, Gi\u00e1o ho\u00e0ng Gregory \u1edf th\u1ebf k\u1ef7 16 \u0111\u00e3 quy \u0111\u1ecbnh ng\u00e0y 5 th\u00e1ng 10 n\u0103m 1582 l\u00e0 ng\u00e0y 15 th\u00e1ng 10, h\u01a1n n\u1eefa \u0111\u1ec3 tr\u00e1nh sai s\u1ed1 t\u00edch lu\u1ef9 v\u1ec1 sau \u0111\u00e3 quy \u0111\u1ecbnh m\u1ed9t quy t\u1eafc m\u1edbi l\u00e0 \u0111\u1eb7t ra n\u0103m nhu\u1eadn. L\u1ea5y s\u1ed1 ghi n\u0103m l\u00e0m ti\u00eau chu\u1ea9n, ph\u00e0m s\u1ed1 n\u0103m chia h\u1ebft cho 4 \u0111\u1ec1u l\u00e0 nh\u1eefng n\u0103m nhu\u1eadn. Nh\u01b0ng g\u1eb7p n\u0103m ch\u1eb5n, n\u1ebfu chia h\u1ebft cho 4 c\u0169ng kh\u00f4ng ph\u1ea3i l\u00e0 n\u0103m nhu\u1eadn m\u00e0 ph\u1ea3i chia h\u1ebft cho 400 m\u1edbi l\u00e0 n\u0103m nhu\u1eadn. V\u00ed d\u1ee5 n\u0103m 1980 chia h\u1ebft cho 4 th\u00ec \u0111\u00f3 l\u00e0 n\u0103m nhu\u1eadn. N\u0103m 1900 l\u00e0 n\u0103m ch\u1eb5n tr\u0103m, tuy chia h\u1ebft cho 4 nh\u01b0ng kh\u00f4ng chia h\u1ebft cho 400 n\u00ean kh\u00f4ng ph\u1ea3i l\u00e0 n\u0103m nhu\u1eadn, 2000 m\u1edbi l\u00e0 n\u0103m nhu\u1eadn. Ph\u00e0m l\u00e0 n\u0103m nhu\u1eadn th\u00ec th\u00e1ng 2 c\u1ed9ng th\u00eam 1 ng\u00e0y, t\u1ee9c c\u1ea3 n\u0103m c\u00f3 366 ng\u00e0y. Nh\u01b0 v\u1eady \u0111\u1ed9 d\u00e0i b\u00ecnh qu\u00e2n c\u1ee7a n\u0103m D\u01b0\u01a1ng l\u1ecbch l\u00e0 365, 2425 ng\u00e0y c\u00e0ng g\u1ea7n v\u1edbi \u0111\u1ed9 d\u00e0i c\u1ee7a n\u0103m ch\u00ed tuy\u1ebfn, kho\u1ea3ng 3000 n\u0103m m\u1edbi ch\u00eanh nhau 1 ng\u00e0y.<\/p>\n\n\n\n
Ng\u00e0y nay ta c\u00f2n d\u00f9ng \u00e2m l\u1ecbch g\u1ecdi l\u00e0 l\u1ecbch h\u1ea1, \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a n\u00f3 l\u00e0 v\u1eeba coi tr\u1ecdng s\u1ef1 bi\u1ebfn \u0111\u1ed5i tr\u00f2n, khuy\u1ebft c\u1ee7a M\u1eb7t Tr\u0103ng l\u1ea1i v\u1eeba ch\u00fa \u00fd \u0111\u1ebfn th\u1eddi l\u1ec7nh n\u00f3ng l\u1ea1nh. \u00c2m l\u1ecbch quy \u0111\u1ecbnh th\u00e1ng \u0111\u1ee7 30 ng\u00e0y, th\u00e1ng thi\u1ebfu 29 ng\u00e0y, \u0111\u00f3 l\u00e0 v\u00ec th\u1eddi gian m\u1ed9t chu k\u1ef3 bi\u1ebfn \u0111\u1ed5i c\u1ee7a M\u1eb7t Tr\u0103ng l\u00e0 29,5306 ng\u00e0y. N\u0103m th\u01b0\u1eddng c\u1ee7a \u00e2m l\u1ecbch c\u00f3 12 th\u00e1ng to\u00e0n n\u0103m c\u00f3 354 ho\u1eb7c 355 ng\u00e0y, so v\u1edbi n\u0103m ch\u00ed tuy\u1ebfn ch\u00eanh nhau 10 ng\u00e0y 21 gi\u1edd. \u0110\u1ec3 hi\u1ec7u ch\u1ec9nh sai s\u1ed1 n\u00e0y quy \u0111\u1ecbnh 3 n\u0103m c\u00f3 1 th\u00e1ng nhu\u1eadn, 5 n\u0103m c\u00f3 2 th\u00e1ng nhu\u1eadn, 19 n\u0103m c\u00f3 7 th\u00e1ng nhu\u1eadn, nh\u1edd \u0111\u00f3 khi\u1ebfn cho \u0111\u1ed9 d\u00e0i b\u00ecnh qu\u00e2n c\u1ee7a \u00e2m l\u1ecbch g\u1ea7n v\u1edbi n\u0103m ch\u00ed tuy\u1ebfn \u0111\u1ec3 ph\u1ed1i h\u1ee3p v\u1edbi quy lu\u1eadt bi\u1ebfn \u0111\u1ed5i n\u00f3ng l\u1ea1nh c\u1ee7a th\u1eddi ti\u1ebft. Th\u00f4ng qua s\u1ef1 s\u1eafp x\u1ebfp kh\u00e9o l\u00e9o n\u00e0y, \u0111\u1ed9 d\u00e0i b\u00ecnh qu\u00e2n c\u1ee7a n\u0103m \u00e2m l\u1ecbch l\u00e0 365, 2468 ng\u00e0y, g\u1ea7n gi\u1ed1ng v\u1edbi n\u0103m ch\u00ed tuy\u1ebfn.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: N\u0103m nhu\u1eadn; Th\u00e1ng nhu\u1eadn; N\u0103m quay l\u1ea1i; L\u1ecbch Julius.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Ng\u00e0y nay c\u00e1c n\u01b0\u1edbc tr\u00ean th\u1ebf gi\u1edbi th\u01b0\u1eddng d\u00f9ng D\u01b0\u01a1ng l\u1ecbch, \u0111\u00f3 l\u00e0 “L\u1ecbch Julius” do ng\u01b0\u1eddi La M\u00e3 l\u00e0m th\u00e0nh. Trong thi\u00ean v\u0103n h\u1ecdc l\u1ea5y kho\u1ea3ng c\u00e1ch th\u1eddi gian Tr\u00e1i \u0110\u1ea5t quay quanh M\u1eb7t Tr\u1eddi t\u1eeb \u0111i\u1ec3m xu\u00e2n ph\u00e2n tr\u1edf v\u1ec1 \u0111i\u1ec3m xu\u00e2n ph\u00e2n l\u00e0m m\u1ed9t n\u0103m ch\u00ed tuy\u1ebfn, \u0111\u1ed9 d\u00e0i c\u1ee7a n\u00f3 l\u00e0 […]<\/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-6869","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\/6869","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=6869"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/6869\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=6869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=6869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=6869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}