T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 9 – Arkady Leokum<\/p>\n\n\n\n
Tr\u01b0\u1edbc khi m\u00fai gi\u1edd \u0111\u01b0\u1ee3c \u1ea5n \u0111\u1ecbnh c\u00f3 r\u1ea5t nhi\u1ec1u tr\u1edf ng\u1ea1i, nh\u1ea5t l\u00e0 khi ng\u01b0\u1eddi ta ph\u1ea3i d\u00f9ng th\u1eddi kh\u1eafc bi\u1ec3u cho t\u00e0u l\u1eeda. \u0110\u1ec3 ch\u1ea5m d\u1ee9t t\u00ecnh tr\u1ea1ng n\u00e0y, n\u0103m 1883, Hoa K\u1ef3 b\u1eaft \u0111\u1ea7u d\u00f9ng m\u1ed9t h\u1ec7 th\u1ed1ng m\u00fai gi\u1edd ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n
N\u0103m 1884, m\u1ed9t h\u1ed9i ngh\u1ecb qu\u1ed1c t\u1ebf nh\u00f3m h\u1ecdp t\u1ea1i Washington, D.C. \u0111\u1ec3 thi\u1ebft l\u1eadp m\u1ed9t h\u1ec7 th\u1ed1ng cho to\u00e0n th\u1ebf gi\u1edbi. Qu\u1ea3 \u0111\u1ea5t chia th\u00e0nh 24 m\u00fai gi\u1edd, m\u1ed7i m\u00fai gi\u1edd g\u1ed3m 150 kinh tuy\u1ebfn. \u0110\u00e2y l\u00e0 m\u1ed9t c\u00e1ch chia t\u1ef1 nhi\u00ean, b\u1edfi v\u00ec qu\u1ea3 \u0111\u1ea5t quay quanh tr\u1ee5c c\u1ee7a n\u00f3, v\u1eadn t\u1ed1c l\u00e0 150 m\u1ed9t gi\u1edd.<\/p>\n\n\n\n
Trong c\u00f9ng m\u1ed9t m\u00fai gi\u1edd, \u0111\u1ed3ng h\u1ed3 ch\u1ec9 gi\u1edd gi\u1ed1ng nhau v\u00e0 gi\u1eefa m\u00fai gi\u1edd n\u00e0y v\u00e0 m\u00fai gi\u1edd k\u1ebf ti\u1ebfp c\u00e1ch nhau \u0111\u00fang m\u1ed9t gi\u1edd. greenwich (Lu\u00e2n \u0110\u00f4n), n\u01b0\u1edbc Anh, \u0111\u01b0\u1ee3c ch\u1ecdn l\u00e0 kh\u1edfi \u0111i\u1ec3m. Nh\u01b0 th\u1ebf, bu\u1ed5i tr\u01b0a \u1edf greenwich, m\u00fai gi\u1edd k\u1ebf ti\u1ebfp v\u1ec1 ph\u00eda \u0111\u00f4ng l\u00e0 1 gi\u1edd chi\u1ec1u, m\u00fai gi\u1edd ph\u00eda t\u00e2y l\u00e0 11 gi\u1edd s\u00e1ng. \u1ede New York, c\u00e1ch greenwich 5 m\u00fai gi\u1edd v\u1ec1 ph\u00eda t\u00e2y t\u1ee9c l\u00e0 7 gi\u1edd s\u00e1ng.<\/p>\n\n\n\n
N\u01b0\u1edbc M\u1ef9 chia th\u00e0nh 4 m\u00fai gi\u1edd d\u1ef1a tr\u00ean c\u00e1c kinh tuy\u1ebfn 75, 90, 105, 120. gi\u1edd tr\u00ean nh\u1eefng m\u00fai gi\u1edd n\u00e0y theo tu\u1ea7n t\u1ef1 g\u1ecdi l\u00e0 gi\u1edd chu\u1ea9n H\u01b0\u1edbng \u0111\u00f4ng, trung t\u00e2m, mi\u1ec1n n\u00fai v\u00e0 Th\u00e1i B\u00ecnh D\u01b0\u01a1ng.<\/p>\n\n\n\n
Ph\u00eda \u0111\u1ed1i di\u1ec7n c\u1ee7a qu\u1ea3 \u0111\u1ea5t t\u1eeb greenwich l\u00e0 1 \u0111\u01b0\u1eddng chia kh\u00e1c, \u0111\u01b0\u1eddng chia ng\u00e0y gi\u1edd qu\u1ed1c t\u1ebf. \u0110\u01b0\u1eddng n\u00e0y g\u1ea7n tr\u00f9ng v\u1edbi kinh tuy\u1ebfn 180. Khi greenwich l\u00e0 bu\u1ed5i tr\u01b0a, th\u00ec l\u00fac \u1ea5y \u1edf \u0111\u01b0\u1eddng chia ng\u00e0y gi\u1edd qu\u1ed1c t\u1ebf l\u00e0 n\u1eeda \u0111\u00eam. Qua kh\u1ecfi \u0111\u01b0\u1eddng n\u00e0y, m\u1ed9t ng\u01b0\u1eddi c\u00f3 th\u1ec3 th\u00eam m\u1ed9t ng\u00e0y hay m\u1ea5t \u0111i m\u1ed9t ng\u00e0y, t\u00f9y theo ng\u01b0\u1eddi \u1ea5y \u0111i v\u1ec1 ph\u00eda \u0111\u00f4ng hay t\u00e2y.<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 9 – Arkady Leokum Tr\u01b0\u1edbc khi m\u00fai gi\u1edd \u0111\u01b0\u1ee3c \u1ea5n \u0111\u1ecbnh c\u00f3 r\u1ea5t nhi\u1ec1u tr\u1edf ng\u1ea1i, nh\u1ea5t l\u00e0 khi ng\u01b0\u1eddi ta ph\u1ea3i d\u00f9ng th\u1eddi kh\u1eafc bi\u1ec3u cho t\u00e0u l\u1eeda. \u0110\u1ec3 ch\u1ea5m d\u1ee9t t\u00ecnh tr\u1ea1ng n\u00e0y, n\u0103m 1883, Hoa K\u1ef3 b\u1eaft \u0111\u1ea7u d\u00f9ng m\u1ed9t […]<\/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],"tags":[],"class_list":["post-15495","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15495","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=15495"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15495\/revisions"}],"predecessor-version":[{"id":15496,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15495\/revisions\/15496"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=15495"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=15495"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=15495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}