T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 5 – Arkady Leokum<\/p>\n\n\n\n
Khi thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng \u0111o (chi\u1ec1u d\u00e0i, di\u1ec7n t\u00edch) l\u01b0\u1eddng (ch\u1ea5t l\u1ecfng, tr\u1ecdng l\u01b0\u1ee3ng) ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 ch\u1ecdn b\u1ea5t c\u1ee9 m\u1ed9t \u0111\u1ed9 d\u00e0i n\u00e0o \u0111\u00f3 ho\u1eb7c m\u1ed9t th\u1ec3 t\u00edch, m\u1ed9t tr\u1ecdng l\u01b0\u1ee3ng n\u00e0o \u0111\u00f3 l\u00e0m \u0111\u01a1n v\u1ecb chu\u1ea9n. Ch\u1eb3ng h\u1ea1n, ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 l\u1ea5y chi\u1ec1u cao trung b\u00ecnh c\u1ee7a ng\u01b0\u1eddi l\u00e0m \u0111\u01a1n v\u1ecb chu\u1ea9n. \u1ede nh\u1eefng qu\u1ed1c gia n\u00f3i ti\u1ebfng Anh ng\u00e0y nay, m\u1ed9t v\u00e0i \u0111\u01a1n v\u1ecb \u0111o chi\u1ec1u d\u00e0i v\u1eabn \u0111\u1eb7t c\u0103n b\u1ea3n tr\u00ean \u0111\u1ed9 d\u00e0i c\u1ee7a ph\u1ea7n th\u00e2n th\u1ec3 n\u00e0o \u0111\u00f3, ch\u1eb3ng h\u1ea1n t\u1eeb khu\u1ef7u tay cho \u0111\u1ebfn \u0111\u1ea7u ng\u00f3n tay gi\u1eefa, ho\u1eb7c tr\u00ean c\u0103n b\u1ea3n tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a h\u1ea1t l\u00faa m\u00ec.<\/p>\n\n\n\n
V\u00ec m\u1ed7i qu\u1ed1c gia c\u00f3 th\u1ec3 c\u00f3 \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng kh\u00e1c nhau n\u00ean ng\u01b0\u1eddi ta th\u1ea5y c\u1ea7n ph\u1ea3i c\u00f3 m\u1ed9t \u0111\u01a1n v\u1ecb \u0111o, l\u01b0\u1eddng chu\u1ea9n d\u00f9ng trong qu\u1ed1c t\u1ebf. H\u1ec7 th\u1ed1ng \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c nhi\u1ec1u qu\u1ed1c gia tr\u00ean th\u1ebf gi\u1edbi ch\u1ea5p thu\u1eadn \u00e1p d\u1ee5ng l\u00e0 h\u1ec7 th\u1ed1ng \u0111o, l\u01b0\u1eddng th\u1eadp ph\u00e2n. \u0111\u00e2y l\u00e0 h\u1ec7 th\u1ed1ng \u0111\u00e3 \u0111\u01b0\u1ee3c m\u1ed9t \u1ee6y ban khoa h\u1ecdc \u0111\u1eb7t ra v\u00e0o n\u0103m 1789 \u1edf Ph\u00e1p. Tuy nhi\u00ean, tr\u00ean th\u1ebf gi\u1edbi ng\u00e0y nay v\u1eabn c\u00f2n m\u1ed9t v\u00e0i qu\u1ed1c gia n\u00f3i ti\u1ebfng Anh kh\u00f4ng ch\u1ecbu d\u00f9ng h\u1ec7 th\u1ed1ng \u0111o l\u01b0\u1eddng th\u1eadp ph\u00e2n n\u00e0y, tr\u1eeb trong c\u00e1c c\u00f4ng tr\u00ecnh khoa h\u1ecdc c\u1ee7a h\u1ecd.<\/p>\n\n\n\n
H\u1ec7 th\u1ed1ng \u201cm\u00e9t\u201d \u0111\u1eb7t c\u0103n b\u1ea3n tr\u00ean \u0111\u1ed9 d\u00e0i c\u1ee7a m\u1ed9t m\u00e9t, t\u1ee9c l\u00e0 x\u1ea5p x\u1ec9 v\u1edbi m\u1ed9t ph\u1ea7n m\u01b0\u1eddi tri\u1ec7u c\u1ee7a \u0111\u1ed9 d\u00e0i n\u1ed1i li\u1ec1n B\u1eafc v\u00e0 Nam c\u1ef1c. H\u1ec7 th\u1ed1ng n\u00e0y d\u1ef1a tr\u00ean th\u1eadp ph\u00e2n, c\u00f3 ngh\u0129a l\u00e0 m\u1ed7i \u0111\u01a1n v\u1ecb l\u1edbn hay nh\u1ecf h\u01a1n \u0111\u01a1n v\u1ecb k\u1ebf n\u00f3 10 l\u1ea7n. \u0111\u01a1n v\u1ecb \u0111o chi\u1ec1u d\u00e0i n\u00e0y c\u0169ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 do di\u1ec7n t\u00edch v\u00e0 kh\u1ed1i (cubic). \u0111\u01a1n v\u1ecb \u0111\u1ec3 \u0111o tr\u1ecdng l\u01b0\u1ee3ng l\u00e0 \u201cgam\u201d l\u00e0 tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t centim\u00e9t kh\u1ed1i n\u01b0\u1edbc nguy\u00ean ch\u1ea5t. \u0111\u01a1n v\u1ecb \u0111\u1ec3 l\u01b0\u1eddng th\u1ec3 t\u00edch l\u00e0 \u201cl\u00edt\u201d. Hecta l\u00e0 \u0111\u01a1n v\u1ecb \u0111o di\u1ec7n t\u00edch l\u1edbn g\u1ea5p 10.000 l\u1ea7n di\u1ec7n t\u00edch c\u1ee7a m\u1ed9t m\u00e9 vu\u00f4ng. H\u1ec7 th\u1ed1ng m\u00e9t, n\u00f3i chung l\u00e0 h\u1ec7 th\u1ed1ng th\u1eadp ph\u00e2n, thu\u1eadn ti\u1ec7n h\u01a1n h\u1ec7 th\u1ed1ng \u0111o l\u01b0\u1eddng c\u1ee7a ng\u01b0\u1eddi Anh, M\u1ef9 b\u1ed9i ph\u1ea7n nh\u1edd b\u1ed9i v\u00e0 \u01b0\u1edbc s\u1ed1 th\u1eadp ph\u00e2n c\u1ee7a m\u1ed7i \u0111\u01a1n v\u1ecb. M\u1ed9t v\u00e0i \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng c\u1ee7a h\u1ec7 th\u1eadp ph\u00e2n so v\u1edbi h\u1ec7 \u0111o c\u1ee7a Anh M\u1ef9:<\/p>\n\n\n\n
Foot = 0,3058m – inch = 2,540cm – mile = 1,609km – quart = 0,946 l\u00edt<\/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 5 – Arkady Leokum Khi thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng \u0111o (chi\u1ec1u d\u00e0i, di\u1ec7n t\u00edch) l\u01b0\u1eddng (ch\u1ea5t l\u1ecfng, tr\u1ecdng l\u01b0\u1ee3ng) ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 ch\u1ecdn b\u1ea5t c\u1ee9 m\u1ed9t \u0111\u1ed9 d\u00e0i n\u00e0o \u0111\u00f3 ho\u1eb7c m\u1ed9t th\u1ec3 t\u00edch, m\u1ed9t tr\u1ecdng l\u01b0\u1ee3ng n\u00e0o \u0111\u00f3 l\u00e0m \u0111\u01a1n v\u1ecb […]<\/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-14655","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\/14655","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=14655"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14655\/revisions"}],"predecessor-version":[{"id":14656,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14655\/revisions\/14656"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}