{"id":8671,"date":"2021-11-21T12:25:59","date_gmt":"2021-11-21T05:25:59","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=8671"},"modified":"2021-11-21T16:02:14","modified_gmt":"2021-11-21T09:02:14","slug":"tai-sao-ca-heo-co-the-boi-voi-toc-do-cao","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/tai-sao-ca-heo-co-the-boi-voi-toc-do-cao\/","title":{"rendered":"T\u1ea1i sao c\u00e1 heo c\u00f3 th\u1ec3 b\u01a1i v\u1edbi t\u1ed1c \u0111\u1ed9 cao?"},"content":{"rendered":"\n

C\u0103n c\u1ee9 v\u00e0o s\u1ef1 t\u00ednh to\u00e1n c\u1ee7a c\u00e1c chuy\u00ean gia<\/a> l\u01b0u th\u1ec3 l\u1ef1c h\u1ecdc, t\u1ed1c \u0111\u1ed9 b\u01a1i m\u1ed7i gi\u1edd c\u1ee7a c\u00e1 heo c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 20 km. C\u00f2n tr\u00ean th\u1ef1c t\u1ebf th\u00ec sao? T\u1ed1c \u0111\u1ed9 b\u01a1i c\u1ee7a c\u00e1 heo c\u00f3 th\u1ec3 \u0111\u1ea1t 70 km\/h. Khi ch\u00fang b\u1ecb qu\u1ea5y nhi\u1ec5u ho\u1eb7c \u0111u\u1ed5i b\u1eaft con m\u1ed3i, t\u1ed1c \u0111\u1ed9 l\u1ea1i c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ebfn 100 km\/h, do \u0111\u00f3 c\u00f3 ng\u01b0\u1eddi g\u1ecdi c\u00e1 heo l\u00e0 “ki\u1ec7n t\u01b0\u1edbng b\u01a1i l\u1eb7n”.<\/p>\n\n\n\n

T\u1ed1c \u0111\u1ed9 b\u01a1i c\u1ee7a c\u00e1 heo t\u1ea1i sao c\u00f3 th\u1ec3 nhanh \u0111\u1ebfn nh\u01b0 v\u1eady nh\u1ec9? C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n, th\u00ec ra c\u00e1 heo ngo\u00e0i c\u00f3 h\u00ecnh th\u1ec3 ki\u1ec3u gi\u1ecdt n\u01b0\u1edbc, ch\u00fang c\u00f2n c\u00f3 k\u1ebft c\u1ea5u da r\u1ea5t \u0111\u1eb7c bi\u1ec7t.<\/p>\n\n\n\n

V\u1ec1 c\u01a1 b\u1ea3n da c\u1ee7a c\u00e1 heo c\u00f3 th\u1ec3 chia th\u00e0nh 2 l\u1edbp: l\u1edbp ngo\u00e0i l\u00e0 bi\u1ec3u b\u00ec d\u1ea1ng x\u1ed1p r\u1ea5t m\u1ec1m, d\u00e0y kho\u1ea3ng 1,5 mm, l\u1edbp trong l\u00e0 ch\u00e2n b\u00ec ch\u1eb7t ch\u1ebd v\u00e0 c\u1ee9ng r\u1eafn, d\u00e0y kho\u1ea3ng 6 mm, tr\u00ean ch\u00e2n b\u00ec c\u00f3 nhi\u1ec1u m\u1ea5u n\u1ed5i l\u00ean h\u00ecnh n\u00fam, d\u01b0\u1edbi m\u1ea5u n\u1ed5i l\u00ean c\u00f3 s\u1ee3i cao su \u0111\u1eb7c v\u00e0 s\u1ee3i c\u00f3 t\u00ednh \u0111\u00e0n h\u1ed3i, t\u1ebft \u0111an xen nhau, gi\u1eefa hai s\u1ee3i n\u00e0y c\u00f3 \u0111\u1ea7y m\u1ee1. K\u1ebft c\u1ea5u da n\u00e0y gi\u1ed1ng nh\u01b0 b\u1ed9 gi\u1ea3m s\u00f3c v\u1eady, trong s\u00f3ng bi\u1ec3n c\u00f3 th\u1ec3 gi\u1ea3m b\u1edbt \u0111\u01b0\u1ee3c s\u1ef1 dao \u0111\u1ed9ng c\u1ee7a d\u00f2ng n\u01b0\u1edbc l\u00ean b\u1ec1 m\u1eb7t c\u01a1 th\u1ec3, ng\u0103n ch\u1eb7n s\u1ef1 ph\u00e1t sinh c\u00e1c d\u00f2ng n\u01b0\u1edbc xo\u00e1y, l\u00e0m cho l\u1ef1c c\u1ea3n ma s\u00e1t c\u1ee7a n\u01b0\u1edbc gi\u1ea3m \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 nh\u1ecf nh\u1ea5t, do \u0111\u00f3 c\u00e1 heo c\u00f3 th\u1ec3 b\u01a1i \u0111\u01b0\u1ee3c v\u1edbi t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n

Chuy\u00ean gia<\/a> v\u1ec1 t\u00ean l\u1eeda ng\u01b0\u1eddi \u0110\u1ee9c l\u00e0 Kelamoer, v\u00e0o th\u1eadp k\u1ec9 60 c\u1ee7a th\u1ebf k\u1ec9 XX \u0111\u00e3 gi\u1ea3i ra c\u00e2u \u0111\u1ed1 n\u00e0y. \u00d4ng \u0111\u00e3 d\u00f9ng cao su b\u1eaft ch\u01b0\u1edbc theo c\u1ea5u t\u1ea1o da c\u1ee7a c\u00e1 heo \u0111\u1ec3 ch\u1ebf t\u1ea1o th\u00e0nh “da c\u00e1 heo nh\u00e2n t\u1ea1o” bu\u1ed9c v\u00e0o tr\u00ean ng\u01b0 l\u00f4i v\u00e0 thuy\u1ec1n \u0111\u1ec3 th\u1eed nghi\u1ec7m, l\u00e0m cho l\u1ef1c c\u1ea3n c\u1ee7a ng\u01b0 l\u00f4i v\u00e0 t\u00e0u khi ti\u1ebfn l\u00ean ph\u00eda tr\u01b0\u1edbc gi\u1ea3m b\u1edbt m\u1ed9t n\u1eeda. Hi\u1ec7n nay, \u0111\u00e3 c\u00f3 th\u1ec3 ti\u1ebfn th\u00eam m\u1ed9t b\u01b0\u1edbc d\u00f9ng da c\u00e1 heo nh\u00e2n t\u1ea1o b\u1ecdc b\u00ean ngo\u00e0i nh\u1eefng chi\u1ebfc t\u00e0u c\u1ee1 nh\u1ecf ho\u1eb7c t\u00e0u ng\u1ea7m, l\u00e0m cho t\u1ed1c \u0111\u1ed9 ch\u1ea1y c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c n\u00e2ng cao l\u00ean nhi\u1ec1u. N\u1ebfu nh\u01b0 c\u1ea3i ti\u1ebfn h\u01a1n n\u1eefa, da c\u00e1 heo th\u1eadm ch\u00ed c\u00f3 th\u1ec3 d\u00f9ng cho m\u00e1y bay \u0111\u1ec3 n\u00e2ng cao t\u1ed1c \u0111\u1ed9 bay.<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u0103n c\u1ee9 v\u00e0o s\u1ef1 t\u00ednh to\u00e1n c\u1ee7a c\u00e1c chuy\u00ean gia l\u01b0u th\u1ec3 l\u1ef1c h\u1ecdc, t\u1ed1c \u0111\u1ed9 b\u01a1i m\u1ed7i gi\u1edd c\u1ee7a c\u00e1 heo c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 20 km. C\u00f2n tr\u00ean th\u1ef1c t\u1ebf th\u00ec sao? T\u1ed1c \u0111\u1ed9 b\u01a1i c\u1ee7a c\u00e1 heo c\u00f3 th\u1ec3 \u0111\u1ea1t 70 km\/h. Khi ch\u00fang b\u1ecb qu\u1ea5y nhi\u1ec5u ho\u1eb7c \u0111u\u1ed5i b\u1eaft con m\u1ed3i, […]<\/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":[15,10],"tags":[],"class_list":["post-8671","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-sinh-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8671","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=8671"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8671\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8671"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8671"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}