D\u01b0\u1edbi \u00e1nh M\u1eb7t Tr\u1eddi ho\u1eb7c \u00e1nh \u0111\u00e8n, ng\u01b0\u1eddi ho\u1eb7c c\u00e1c \u0111\u1ed3 v\u1eadt kh\u00e1c \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i c\u00e1i b\u00f3ng c\u1ee7a m\u00ecnh. B\u00f3ng l\u00e0 m\u1ed9t v\u00f9ng t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1i do \u0111\u01b0\u1eddng \u0111i t\u1edbi c\u1ee7a \u00e1nh s\u00e1ng b\u1ecb ng\u0103n ch\u1eb7n l\u01b0u l\u1ea1i.<\/p>\n\n\n\n
N\u1ebfu b\u1ea1n quan s\u00e1t k\u0129 h\u01b0\u1edbng c\u00e1i b\u00f3ng, b\u1ea1n s\u1ebd ph\u00e1t hi\u1ec7n, trong t\u00ecnh tr\u1ea1ng chung, th\u00f4ng th\u01b0\u1eddng l\u00e0 ph\u1ea7n gi\u1eefa c\u1ee7a b\u00f3ng \u0111en t\u1ed1i \u0111\u1eb7c bi\u1ec7t, b\u1ed1n ph\u00eda l\u1ea1i h\u01a1i m\u1edd x\u00e1m. Ph\u1ea7n \u0111\u1eb7c bi\u1ec7t t\u1ed1i \u0111en \u1edf gi\u1eefa b\u00f3ng c\u1ee7a ch\u00fang g\u1ecdi l\u00e0 b\u00f3ng \u0111en, c\u00f2n ph\u1ea7n m\u1edd x\u00e1m \u1edf xung quanh g\u1ecdi l\u00e0 b\u00f3ng m\u1edd. V\u00ec sao l\u1ea1i h\u00ecnh th\u00e0nh ra b\u00f3ng \u0111en v\u00e0 b\u00f3ng m\u1edd nh\u1ec9? B\u00f3ng \u0111en l\u00e0 b\u00f3ng do c\u00e1c tia s\u00e1ng b\u1ecb l\u1ea5p t\u1ea5t c\u1ea3 h\u00ecnh th\u00e0nh n\u00ean, c\u00f2n b\u00f3ng m\u1edd th\u00ec l\u1ea1i do c\u00e1c tia s\u00e1ng b\u1ecb l\u1ea5p m\u1ed9t ph\u1ea7n h\u00ecnh th\u00e0nh n\u00ean.<\/p>\n\n\n\n
Con ng\u01b0\u1eddi \u0111\u1ee9ng d\u01b0\u1edbi \u0111\u00e8n d\u00e2y t\u00f3c, do lo\u1ea1i \u0111\u00e8n \u0111\u00f3 ph\u00e1t s\u00e1ng kh\u00f4ng ch\u1ec9 gi\u1edbi h\u1ea1n v\u00e0o m\u1ed9t \u0111i\u1ec3m, m\u00e0 l\u00e0 m\u1ed9t s\u1ee3i t\u00f3c \u0111\u00e8n cong cong, tia s\u00e1ng t\u1eeb m\u1ed9t \u0111i\u1ec3m chi\u1ebft ra b\u1ecb th\u00e2n m\u00ecnh c\u1ee7a ng\u01b0\u1eddi che khu\u1ea5t, song \u00e1nh s\u00e1ng t\u1eeb m\u1ed9t \u0111i\u1ec3m kh\u00e1c chi\u1ebfu l\u1ea1i th\u00ec kh\u00f4ng h\u1eb3n b\u1ecb che khu\u1ea5t. Nh\u01b0 v\u1eady, ng\u01b0\u1eddi d\u01b0\u1edbi \u00e1nh s\u00e1ng c\u1ee7a \u0111\u00e8n d\u00e2y t\u00f3c li\u1ec1n sinh ra b\u00f3ng do b\u00f3ng \u0111en v\u00e0 b\u00f3ng m\u1edd c\u1ea5u th\u00e0nh. M\u1eb7t kh\u00e1c, do t\u00f3c \u0111\u00e8n c\u1ee7a \u0111\u00e8n d\u00e2y t\u00f3c c\u00f2n c\u00f3 th\u1ec3 coi l\u00e0 t\u01b0\u01a1ng \u0111\u1ed1i t\u1eadp trung, cho n\u00ean, b\u00f3ng h\u00ecnh th\u00e0nh n\u00ean ch\u1ee7 y\u1ebfu l\u00e0 b\u00f3ng \u0111en, \u0111\u01b0\u1eddng vi\u1ec1n c\u1ee7a m\u1ed9t v\u00e0nh m\u1edd x\u00e1m xung quanh b\u00f3ng \u0111en t\u1ee9c l\u00e0 b\u00f3ng m\u1edd. Nh\u00ecn v\u00e0o c\u1ea3 c\u00e1i b\u00f3ng h\u00e3 y c\u00f2n t\u01b0\u01a1ng \u0111\u1ed1i r\u00f5.<\/p>\n\n\n\n
N\u1ebfu \u0111\u1ee9ng d\u01b0\u1edbi \u0111\u00e8n \u1ed1ng, b\u00f3ng c\u1ee7a ng\u01b0\u1eddi kh\u00f4ng \u0111\u01b0\u1ee3c r\u00f5 m\u1ea5y nh\u01b0 \u0111\u1ee9ng d\u01b0\u1edbi \u0111\u00e8n d\u00e2y t\u00f3c, nh\u00ecn c\u00f3 v\u1ebb m\u1edd m\u1edd \u1ea3o \u1ea3o. V\u00ec r\u1eb1ng, \u0111\u00e8n \u1ed1ng l\u00e0 m\u1ed9t \u1ed1ng pha l\u00ea d\u00e0i ho\u1eb7c \u1ed1ng h\u00ecnh v\u00f2ng, di\u1ec7n t\u00edch ph\u00e1t s\u00e1ng c\u1ee7a n\u00f3 r\u1ea5t l\u1edbn, g\u1ea5p nhi\u1ec1u l\u1ea7n c\u1ee7a d\u00e8n d\u00e2y t\u00f3c. Nh\u01b0 v\u1eady, th\u00e2n m\u00ecnh c\u1ee7a ng\u01b0\u1eddi m\u1eb7c d\u00f9 che khu\u1ea5t m\u1ed9t ph\u1ea7n tia s\u00e1ng, l\u1ea1i kh\u00f4ng sao che khu\u1ea5t \u0111\u01b0\u1ee3c c\u00e0ng nhi\u1ec1u tia s\u00e1ng t\u1eeb m\u1ed9t b\u1ed9 ph\u1eadn kh\u00e1c chi\u1ebfu l\u1ea1i. Cho n\u00ean, b\u00f3ng h\u00ecnh th\u00e0nh n\u00ean, v\u1ec1 c\u01a1 b\u1ea3n, l\u00e0 b\u00f3ng m\u1edd, n\u1eeda t\u1ed1i n\u1eeda s\u00e1ng, nh\u00ecn v\u00e0o th\u1ea5y m\u1ed9t \u0111\u00e1m m\u1edd m\u1ecbt, ngay c\u1ea3 \u0111\u01b0\u1eddng vi\u1ec1n c\u0169ng kh\u00f3 m\u00e0 nh\u1eadn r\u00f5 \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n
C\u0103n c\u1ee9 v\u00e0o nguy\u00ean l\u00ed b\u00f3ng \u0111en v\u00e0 b\u00f3ng m\u1edd, ng\u01b0\u1eddi ta ph\u00e1t minh ra \u0111\u00e8n kh\u00f4ng c\u00f3 b\u00f3ng t\u1ed1i \u0111\u1ec3 b\u00e1c s\u0129 ngo\u1ea1i khoa d\u00f9ng khi ti\u1ebfn h\u00e0nh ph\u1eabu thu\u1eadt, g\u1ecdi l\u00e0 \u0111\u00e8n m\u1ed5.<\/p>\n\n\n\n
C\u1ea5u t\u1ea1o c\u1ee7a \u0111\u00e8n m\u1ed5 kh\u00f4ng c\u00f3 g\u00ec ph\u1ee9c t\u1ea1p. N\u00f3 c\u00f3 m\u1ed9t c\u00e1i chao \u0111\u00e8n h\u00ecnh tr\u00f2n r\u1ea5t l\u1edbn, trong c\u00e1i chao \u0111\u00e8n c\u00f3 kho\u1ea3ng 10 qu\u1ea3 c\u1ea7u \u0111\u00e8n s\u1eafp x\u1ebfp theo h\u00ecnh v\u00f2ng ho\u1eb7c \u0111an xen nhau. Trong m\u1ed7i qu\u1ea3 c\u1ea7u \u0111\u00e8n c\u00f3 m\u1ed9t b\u00f3ng \u0111\u00e8n m\u1eb7t g\u01b0\u01a1ng, tr\u00ean g\u00f3c trong c\u1ee7a n\u1eeda d\u01b0\u1edbi b\u00f3ng \u0111\u00e8n c\u00f3 ph\u1ebft m\u1ed9t l\u1edbp nh\u00f4m, ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng m\u1ed9t c\u00e1ch \u0111\u1ed3ng \u0111\u1ec1u d\u1ecbu m\u1eaft \u0111\u1ebfn tr\u00ean to\u00e0n qu\u1ea3 c\u1ea7u \u0111\u00e8n. Nh\u01b0 v\u1eady, t\u1ea5t c\u1ea3 c\u00e1c qu\u1ea3 c\u1ea7u \u0111\u00e8n \u0111\u1ec1u c\u00f3 th\u1ec3 chi\u1ebfu s\u00e1ng t\u1eeb nh\u1eefng g\u00f3c kh\u00e1c nhau l\u00ean b\u00e0n m\u1ed5, v\u1eeba b\u1ea3o \u0111\u1ea3m \u0111\u1ea7y \u0111\u1ee7 \u00e1nh s\u00e1ng trong ph\u1ea1m vi nh\u00ecn c\u1ee7a b\u00e1c s\u0129 m\u1ed5, \u0111\u1ed3ng th\u1eddi l\u1ea1i kh\u00f4ng \u0111\u1ec3 l\u1ea1i b\u1ea5t k\u00ec c\u00e1i b\u00f3ng n\u00e0o. \u0110\u00e8n kh\u00f4ng c\u00f3 b\u00f3ng t\u1ed1i ch\u00ednh l\u00e0 nh\u1edd \u0111\u00f3 m\u00e0 \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: B\u00f3ng; B\u00f3ng \u0111en; B\u00f3ng m\u1edd. \u0110\u00e8n kh\u00f4ng c\u00f3 b\u00f3ng t\u1ed1i.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
D\u01b0\u1edbi \u00e1nh M\u1eb7t Tr\u1eddi ho\u1eb7c \u00e1nh \u0111\u00e8n, ng\u01b0\u1eddi ho\u1eb7c c\u00e1c \u0111\u1ed3 v\u1eadt kh\u00e1c \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i c\u00e1i b\u00f3ng c\u1ee7a m\u00ecnh. B\u00f3ng l\u00e0 m\u1ed9t v\u00f9ng t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1i do \u0111\u01b0\u1eddng \u0111i t\u1edbi c\u1ee7a \u00e1nh s\u00e1ng b\u1ecb ng\u0103n ch\u1eb7n l\u01b0u l\u1ea1i. N\u1ebfu b\u1ea1n quan s\u00e1t k\u0129 h\u01b0\u1edbng c\u00e1i b\u00f3ng, b\u1ea1n s\u1ebd ph\u00e1t hi\u1ec7n, trong t\u00ecnh […]<\/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-5772","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\/5772","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=5772"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5772\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=5772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=5772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=5772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}