B\u1ea1n \u0111\u1ebfn b\u00ean b\u1edd ao, n\u00e9m vi\u00ean \u0111\u00e1 xu\u1ed1ng n\u01b0\u1edbc. M\u1eb7t n\u01b0\u1edbc \u0111ang ph\u1eb3ng nh\u01b0 g\u01b0\u01a1ng, l\u1eadp t\u1ee9c xu\u1ea5t hi\u1ec7n g\u1ee3n s\u00f3ng t\u1eebng v\u00f2ng t\u1eebng v\u00f2ng, t\u1eeb ch\u1ed7 vi\u00ean \u0111\u00e1 r\u01a1i xu\u1ed1ng khu\u1ebfch t\u00e1n ra b\u1ed1n ph\u00eda. N\u00f3i ra th\u1eadt l\u00e0 k\u00ec l\u1ea1, nh\u1eefng g\u1ee3n s\u00f3ng \u0111\u00f3 kh\u00f4ng chen l\u1eabn x\u00f4 \u0111\u1ea9y nhau m\u00e0 r\u1ea5t tr\u1eadt t\u1ef1 r\u1eddi xa \u0111i\u1ec3m vi\u00ean \u0111\u00e1 ch\u00ecm xu\u1ed1ng n\u01b0\u1edbc.<\/p>\n\n\n\n
V\u00ec sao ch\u00fang “gi\u1eef k\u1ec9 lu\u1eadt” \u0111\u1ebfn th\u1ebf? C\u00f3 ai \u0111\u00f3 \u0111ang ch\u1ec9 huy ch\u00fang ch\u0103ng? \u0110\u00f3 l\u00e0 do t\u00ednh ch\u1ea5t v\u1eadt l\u00ed \u0111\u1eb7c th\u00f9 c\u1ee7a n\u01b0\u1edbc quy\u1ebft \u0111\u1ecbnh.<\/p>\n\n\n\n
Th\u00f4ng th\u01b0\u1eddng, tr\u00ean m\u1eb7t n\u01b0\u1edbc h\u00ecnh nh\u01b0 c\u00f3 m\u1ed9t l\u1edbp m\u00e0ng m\u1ecfng c\u00f3 t\u00ednh \u0111\u00e0n h\u1ed3i, ch\u1ea5n \u0111\u1ed9ng l\u00ean xu\u1ed1ng \u1edf ch\u1ed7 n\u00e0o \u0111\u00f3 li\u1ec1n k\u00e9o m\u1eb7t n\u01b0\u1edbc \u1edf g\u1ea7n k\u1ec1 c\u0169ng ch\u1ea5n \u0111\u1ed9ng theo. “M\u1eb7t n\u01b0\u1edbc g\u1ea7n k\u1ec1” \u0111\u00f3 li\u1ec1n k\u00e9o “m\u1eb7t n\u01b0\u1edbc g\u1ea7n k\u1ec1 k\u1ebf ti\u1ebfp”, c\u1ee9 nh\u01b0 v\u1eady m\u00e0 l\u1ea7n l\u01b0\u1ee3t x\u1ea3y ra. K\u1ebft c\u1ee5c sinh ra c\u00e1c g\u1ee3n s\u00f3ng n\u01b0\u1edbc v\u00f2ng n\u00e0y b\u00e1m s\u00e1t v\u00f2ng kia m\u1ed9t c\u00e1ch c\u00f3 quy lu\u1eadt, lan truy\u1ec1n m\u1ed9t m\u1ea1ch ra xa.<\/p>\n\n\n\n
M\u1ed7i m\u1ed9t ph\u00e2n t\u1eed n\u01b0\u1edbc trong s\u00f3ng n\u01b0\u1edbc \u0111\u1ec1u kh\u00f4ng ng\u1eebng ch\u1ea5n \u0111\u1ed9ng nh\u1ea5p nh\u00f4 l\u00ean xu\u1ed1ng. Gi\u1ea3 d\u1ee5 c\u00f3 th\u1ec3 d\u00f9ng dao r\u1ea1ch ngang m\u1eb7t n\u01b0\u1edbc \u0111\u1ec3 xem x\u00e9t m\u1eb7t c\u1eaft d\u1ecdc c\u1ee7a n\u00f3, th\u1ebf th\u00ec b\u1ea1n s\u1ebd ph\u00e1t hi\u1ec7n, \u0111\u00f3 l\u00e0 m\u1ed9t \u0111\u01b0\u1eddng cong h\u00ecnh sin c\u00f3 quy lu\u1eadt. \u0110i\u1ec1u \u0111\u00f3 ch\u1ee9ng t\u1ecf s\u00f3ng n\u01b0\u1edbc \u0111\u00edch th\u1ef1c l\u00e0 m\u1ed9t lo\u1ea1i s\u00f3ng.<\/p>\n\n\n\n
S\u00f3ng n\u01b0\u1edbc l\u00e0 m\u1ed9t lo\u1ea1i s\u00f3ng c\u01a1 h\u1ecdc, l\u00e0 s\u00f3ng m\u00e0 m\u1eaft th\u01b0\u1eddng c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c. Trong thi\u00ean nhi\u00ean c\u00f2n c\u00f3 s\u00f3ng kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u1ee7 ki\u1ec3u \u0111\u1ee7 d\u1ea1ng, nh\u01b0: s\u00f3ng \u00e2m, s\u00f3ng si\u00eau \u00e2m, s\u00f3ng \u00e1nh s\u00e1ng, s\u00f3ng v\u00f4 tuy\u1ebfn v.v. Ch\u00fang \u0111\u1ec1u l\u00e0 “ng\u01b0\u1eddi m\u1ed9t nh\u00e0” c\u1ee7a s\u00f3ng \u0111\u1ea5y m\u00e0!<\/p>\n\n\n\n
T\u1eeb kh\u00f3a: S\u00f3ng c\u01a1 h\u1ecdc; S\u00f3ng n\u01b0\u1edbc.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
B\u1ea1n \u0111\u1ebfn b\u00ean b\u1edd ao, n\u00e9m vi\u00ean \u0111\u00e1 xu\u1ed1ng n\u01b0\u1edbc. M\u1eb7t n\u01b0\u1edbc \u0111ang ph\u1eb3ng nh\u01b0 g\u01b0\u01a1ng, l\u1eadp t\u1ee9c xu\u1ea5t hi\u1ec7n g\u1ee3n s\u00f3ng t\u1eebng v\u00f2ng t\u1eebng v\u00f2ng, t\u1eeb ch\u1ed7 vi\u00ean \u0111\u00e1 r\u01a1i xu\u1ed1ng khu\u1ebfch t\u00e1n ra b\u1ed1n ph\u00eda. N\u00f3i ra th\u1eadt l\u00e0 k\u00ec l\u1ea1, nh\u1eefng g\u1ee3n s\u00f3ng \u0111\u00f3 kh\u00f4ng chen l\u1eabn x\u00f4 \u0111\u1ea9y nhau m\u00e0 r\u1ea5t […]<\/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-5596","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\/5596","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=5596"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5596\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=5596"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=5596"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=5596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}