V\u00ec sao “m\u1eaft m\u00e8o” kh\u00f4ng th\u1ec3 nh\u00ecn t\u1eeb hai \u0111\u1ea7u? “M\u1eaft m\u00e8o” l\u00e0 m\u1ed9t v\u1eadt ph\u1ea9m h\u1ebft s\u1ee9c c\u00f3 \u00edch l\u1eafp \u0111\u01b0\u1ee3c tr\u00ean c\u1eeda ra v\u00e0o. Kh\u00f4ng c\u1ea7n m\u1edf c\u1eeda, th\u00f4ng qua n\u00f3, ng\u01b0\u1eddi trong bu\u1ed3ng c\u00f3 th\u1ec3 nh\u00ecn t\u1ed5ng qu\u00e1t kh\u00f4ng b\u1ecf s\u00f3t c\u1ea3nh v\u1eadt b\u00ean ngo\u00e0i c\u1eeda, g\u00f3c nh\u00ecn \u0111\u1ea1t t\u1edbi tr\u00ean 150o. N\u1ebfu qua “m\u1eaft m\u00e8o” t\u1eeb ngo\u00e0i c\u1eeda quan s\u00e1t trong bu\u1ed3ng, gi\u1ea3 d\u1ee5 trong bu\u1ed3ng c\u00f3 \u00e1nh s\u00e1ng, ch\u1ec9 c\u00f3 th\u1ec3 tr\u00f4ng th\u1ea5y m\u1ed9t ch\u1ea5m s\u00e1ng c\u1ee1 h\u1ea1t \u0111\u1eadu xanh, c\u00f2n nh\u01b0 trong bu\u1ed3ng r\u1ea5t t\u1ed1i th\u00ec kh\u00f4ng tr\u00f4ng th\u1ea5y g\u00ec c\u1ea3. Cho n\u00ean khi l\u1eafp “m\u1eaft m\u00e8o”, nh\u1ea5t thi\u1ebft ph\u1ea3i ch\u00fa \u00fd kh\u00f4ng \u0111\u01b0\u1ee3c l\u1eafp ng\u01b0\u1ee3c.<\/p>\n\n\n\n
V\u1eady th\u00ec v\u00ec sao m\u1eaft m\u00e8o c\u00f3 \u0111\u01b0\u1ee3c lo\u1ea1i ch\u1ee9c n\u0103ng n\u00e0y? Nguy\u00ean l\u00ed ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3 nh\u01b0 th\u1ebf n\u00e0o nh\u1ec9?<\/p>\n\n\n\n
Th\u00e1o d\u1ee1 m\u1eaft m\u00e8o m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn nh\u1eb9 nh\u00e0ng, ch\u00fang ta c\u00f3 th\u1ec3 t\u1ec9 m\u1ec9 nghi\u00ean c\u1ee9u xem c\u1ea5u t\u1ea1o b\u00ean trong c\u1ee7a n\u00f3. \u201cM\u1eaft m\u00e8o\u201d do hai nh\u00f3m th\u1ea5u k\u00ednh t\u1ea1o th\u00e0nh. M\u1ed9t nh\u00f3m n\u1eb1m s\u00e1t ph\u00eda ngo\u00e0i c\u1eeda do ba th\u1ea5u k\u00ednh l\u00f5m gh\u00e9p l\u1ea1i. Th\u1ea5u k\u00ednh a l\u00e0 th\u1ea5u k\u00ednh l\u1ed3i l\u00f5m, v\u00ec b\u1ed9 ph\u1eadn gi\u1eefa c\u1ee7a n\u00f3 m\u1ecfng h\u01a1n m\u00e9p v\u00e0nh, cho n\u00ean n\u00f3 v\u1eabn thu\u1ed9c v\u1ec1 th\u1ea5u k\u00ednh l\u00f5m. Th\u1ea5u k\u00ednh b, c \u0111\u1ec1u l\u00e0 th\u1ea5u k\u00ednh ph\u1eb3ng l\u00f5m. Ba th\u1ea5u k\u00ednh a, b, c gh\u00e9p ch\u1eb7t v\u00e0o nhau. C\u0169ng c\u00f3 lo\u1ea1i \u201cm\u1eaft m\u00e8o\u201d m\u00e0 nh\u00f3m th\u1ea5u k\u00ednh n\u00e0y do hai th\u1ea5u k\u00ednh l\u00f5m h\u1ee3p th\u00e0nh ho\u1eb7c ch\u1ec9 c\u00f3 m\u1ed9t th\u1ea5u k\u00ednh l\u00f5m. S\u1ed1 l\u01b0\u1ee3ng th\u1ea5u k\u00ednh nhi\u1ec1u hay \u00edt c\u00f3 \u1ea3nh h\u01b0\u1edfng nh\u1ea5t \u0111\u1ecbnh \u0111\u1ed1i v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh th\u00e0nh \u1ea3nh. Nh\u00f3m th\u1ea5u k\u00ednh kia n\u1eb1m s\u00e1t ph\u00eda trong c\u1eeda l\u00e0 m\u1ed9t th\u1ea5u k\u00ednh l\u1ed3i.<\/p>\n\n\n\n
Nh\u00f3m th\u1ea5u k\u00ednh do ba th\u1ea5u k\u00ednh l\u00f5m h\u1ee3p th\u00e0nh c\u00f3 t\u00e1c d\u1ee5ng c\u1ee7a th\u1ea5u k\u00ednh l\u00f5m. Do n\u00f3 l\u00e0 t\u1ed5 h\u1ee3p c\u1ee7a ba th\u1ea5u k\u00ednh l\u00f5m n\u00ean ti\u00eau c\u1ef1 \u1ea3o c\u1ee7a n\u00f3 r\u1ea5t ng\u1eafn, l\u00e0m cho g\u00f3c quan s\u00e1t c\u1ee7a m\u1eaft m\u00e8o r\u1ea5t l\u1edbn, nh\u01b0 th\u1ec3 c\u1ea3nh v\u1eadt b\u00ean ngo\u00e0i c\u1eeda \u0111\u1ec1u \u0111\u01b0\u1ee3c thu to\u00e0n b\u1ed9 v\u00e0o trong m\u1eaft m\u00e8o. Gi\u1ea3 thi\u1ebft AB l\u00e0 v\u1eadt th\u1ec3 \u1edf ngo\u00e0i c\u1eeda, c\u0103n c\u1ee9 v\u00e0o nguy\u00ean l\u00ed h\u00ecnh th\u00e0nh \u1ea3nh c\u1ee7a th\u1ea5u k\u00ednh l\u00f5m, m\u1ed9t \u1ea3nh c\u1ee7a A’B’ c\u1ee1 nh\u1ecf, c\u00f9ng chi\u1ec1u, h\u00ecnh th\u00e0nh c\u00f9ng ph\u00eda c\u1ee7a th\u1ea5u k\u00ednh.<\/p>\n\n\n\n
\u1ea2nh \u1ea3o A’B’ v\u1eeba \u0111\u00fang r\u01a1i v\u00e0o trong ti\u00eau c\u1ef1 c\u1ee7a m\u1ed9t th\u1ea5u k\u00ednh l\u1ed3i kh\u00e1c. C\u0103n c\u1ee9 v\u00e0o nguy\u00ean l\u00ed h\u00ecnh th\u00e0nh \u1ea3nh c\u1ee7a th\u1ea5u k\u00ednh l\u1ed3i, l\u1ea1i h\u00ecnh th\u00e0nh l\u00ean m\u1ed9t \u1ea3nh \u1ea3o A”B” c\u00f9ng chi\u1ec1u v\u00e0 ph\u00f3ng to, h\u01a1n n\u1eefa \u1ea3nh \u1ea3o \u0111\u00f3 v\u1eeba \u0111\u00fang r\u01a1i v\u00e0o trong ph\u1ea1m vi th\u1ea5y r\u00f5 c\u1ee7a m\u1eaft, cho n\u00ean ng\u01b0\u1eddi trong bu\u1ed3ng th\u00f4ng qua m\u1eaft m\u00e8o c\u00f3 th\u1ec3 tr\u00f4ng r\u00f5 c\u1ea3nh v\u1eadt ngo\u00e0i c\u1eeda.<\/p>\n\n\n\n
N\u1ebfu l\u1eafp ng\u01b0\u1ee3c m\u1eaft m\u00e8o, nh\u00ecn t\u1eeb ph\u00eda nh\u00f3m th\u1ea5u k\u00ednh l\u00f5m v\u00e0o v\u1eadt th\u1ec3 \u1edf ngo\u00e0i th\u1ea5u k\u00ednh l\u1ed3i d, do v\u1eadt th\u1ec3 \u1edf ngo\u00e0i th\u1ea5u k\u00ednh l\u1ed3i n\u00f3i chung \u1edf ngo\u00e0i hai ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh l\u1ed3i, c\u0103n c\u1ee9 v\u00e0o nguy\u00ean l\u00ed h\u00ecnh th\u00e0nh \u1ea3nh, c\u1ef1 li c\u1ee7a \u1ea3nh ph\u1ea3i \u1edf trong kho\u1ea3ng gi\u1eefa m\u1ed9t v\u00e0 hai ti\u00eau c\u1ef1, l\u00e0 m\u1ed9t \u1ea3nh th\u1eadt c\u1ee1 nh\u1ecf, ng\u01b0\u1ee3c chi\u1ec1u. C\u00f2n nh\u00f3m th\u1ea5u k\u00ednh l\u00f5m l\u1ea1i n\u1eb1m trong m\u1ed9t ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh l\u1ed3i, cho n\u00ean kh\u00f4ng sao tr\u00f4ng th\u1ea5y \u0111\u01b0\u1ee3c \u1ea3nh \u0111\u00f3.<\/p>\n\n\n\n
N\u1ebfu v\u1eadt th\u1ec3 \u1edf ngo\u00e0i th\u1ea5u k\u00ednh l\u1ed3i \u1edf trong kho\u1ea3ng m\u1ed9t ti\u00eau c\u1ef1 v\u00e0 hai ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh l\u1ed3i, c\u0103n c\u1ee9 v\u00e0o nguy\u00ean l\u00ed h\u00ecnh th\u00e0nh \u1ea3nh c\u1ee7a th\u1ea5u k\u00ednh l\u1ed3i, c\u1ef1 li c\u1ee7a \u1ea3nh ph\u1ea3i \u1edf ngo\u00e0i hai ti\u00eau c\u1ef1, l\u00e0 m\u1ed9t \u1ea3nh th\u1ef1c ph\u00f3ng to, ng\u01b0\u1ee3c chi\u1ec1u. \u1ea2nh n\u00e0y c\u0169ng kh\u00f4ng sao th\u1ea5y \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n
V\u1ec1 b\u1ea3o v\u1ec7 an to\u00e0n ch\u1ed1ng k\u1ebb gian cho c\u0103n h\u1ed9, c\u00f2n c\u00f3 h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n theo d\u00f5i nh\u01b0 m\u00e1y \u0111\u1ed1i tho\u1ea1i, m\u00e1y \u1ea3nh v\u00e0 m\u00e1y truy\u1ec1n h\u00ecnh kh\u00e9p k\u00edn v.v. Song m\u1eaft m\u00e8o c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m nh\u01b0 xinh x\u1eafn, tinh vi, gi\u00e1 r\u1ebb, kh\u00f4ng ti\u00eau t\u1ed1n n\u0103ng l\u01b0\u1ee3ng, h\u00ecnh th\u00e0nh \u1ea3nh r\u00f5 n\u00e9t v.v. b\u1ea5t k\u1ec3 l\u00e0 hi\u1ec7n t\u1ea1i hay t\u01b0\u01a1ng lai bao gi\u1edd c\u0169ng c\u00f3 ch\u1ed7 \u0111\u1ee9ng c\u1ee7a n\u00f3.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: M\u1eaft m\u00e8o; Th\u1ea5u k\u00ednh l\u00f5m; Th\u1ea5u k\u00ednh l\u1ed3i.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
V\u00ec sao “m\u1eaft m\u00e8o” kh\u00f4ng th\u1ec3 nh\u00ecn t\u1eeb hai \u0111\u1ea7u? “M\u1eaft m\u00e8o” l\u00e0 m\u1ed9t v\u1eadt ph\u1ea9m h\u1ebft s\u1ee9c c\u00f3 \u00edch l\u1eafp \u0111\u01b0\u1ee3c tr\u00ean c\u1eeda ra v\u00e0o. Kh\u00f4ng c\u1ea7n m\u1edf c\u1eeda, th\u00f4ng qua n\u00f3, ng\u01b0\u1eddi trong bu\u1ed3ng c\u00f3 th\u1ec3 nh\u00ecn t\u1ed5ng qu\u00e1t kh\u00f4ng b\u1ecf s\u00f3t c\u1ea3nh v\u1eadt b\u00ean ngo\u00e0i c\u1eeda, g\u00f3c nh\u00ecn \u0111\u1ea1t t\u1edbi tr\u00ean 150o. […]<\/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-5874","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\/5874","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=5874"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5874\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=5874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=5874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=5874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}