{"id":10788,"date":"2021-11-22T17:25:45","date_gmt":"2021-11-22T10:25:45","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=10788"},"modified":"2021-11-22T18:19:51","modified_gmt":"2021-11-22T11:19:51","slug":"vi-sao-dem-va-sang-som-nghe-tieng-chuong-o-xa-ro-hon-ban-ngay","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/vi-sao-dem-va-sang-som-nghe-tieng-chuong-o-xa-ro-hon-ban-ngay\/","title":{"rendered":"V\u00ec sao \u0111\u00eam v\u00e0 s\u00e1ng s\u1edbm nghe ti\u1ebfng chu\u00f4ng \u1edf xa r\u00f5 h\u01a1n ban ng\u00e0y?"},"content":{"rendered":"\n<p>C\u00f3 ng\u01b0\u1eddi s\u1ebd n\u00f3i: \u201c\u0110\u00f3 l\u00e0 v\u00ec ban \u0111\u00eam v\u00e0 bu\u1ed5i s\u00e1ng s\u1edbm m\u00f4i tr\u01b0\u1eddng y\u00ean t\u0129nh, c\u00f2n ban ng\u00e0y th\u00ec c\u00f3 nhi\u1ec1u ti\u1ebfng \u1ed3n\u201d. \u0110i\u1ec1u \u0111\u00f3 \u0111\u00fang, nh\u01b0ng ch\u1ec9 l\u00e0 ph\u1ea9n nh\u1ecf v\u00e0 c\u0169ng kh\u00f4ng ho\u00e0n ch\u1ec9nh. B\u1ea1n c\u00f3 bi\u1ebft nguy\u00ean nh\u00e2n ch\u1ee7 y\u1ebfu kh\u00f4ng? \u0110\u00f3 l\u00e0 v\u00ec \u00e2m thanh bi\u1ebft \u201c\u0111i v\u00f2ng\u201d.<\/p>\n\n\n\n<p>\u00c2m thanh truy\u1ec1n \u0111i \u0111\u01b0\u1ee3c l\u00e0 nh\u1edd kh\u00f4ng kh\u00ed, nh\u01b0ng n\u00f3 l\u1ea1i c\u00f3 t\u00ednh c\u00e1ch l\u1ef3 l\u1ea1 nh\u01b0 sau: Trong kh\u00f4ng kh\u00ed c\u00f3 nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i, n\u00f3 truy\u1ec1n th\u1eb3ng, nh\u01b0ng m\u1ed9t khi g\u1eb7p ph\u1ea3i kh\u00f4ng kh\u00ed c\u00f3 nhi\u1ec7t \u0111\u1ed9 ch\u1ed7 cao ch\u1ed7 th\u1ea5p, n\u00f3 s\u1ebd ch\u1ecdn n\u01a1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p \u0111\u1ec3 \u0111i, v\u00ec th\u1ebf \u00e2m thanh \u0111i v\u00f2ng.<\/p>\n\n\n\n<p>Ban ng\u00e0y, M\u1eb7t tr\u1eddi hun n\u00f3ng m\u1eb7t \u0111\u1ea5t, nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng kh\u00ed \u1edf g\u1ea9n m\u1eb7t \u0111\u1ea5t cao h\u01a1n nhi\u1ec1u so v\u1edbi \u1edf tr\u00ean cao. Do nhi\u1ec7t \u0111\u1ed9 ph\u00e2n t\u00e1n kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u n\u00ean sau khi ti\u1ebfng chu\u00f4ng ph\u00e1t ra, ch\u01b0a \u0111i \u0111\u01b0\u1ee3c bao xa, n\u00f3 \u0111\u00e3 \u0111i v\u00f2ng l\u00ean tr\u00ean cao n\u01a1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. V\u00ec v\u1eady tr\u00ean m\u1eb7t \u0111\u1ea5t, ngo\u00e0i m\u1ed9t kho\u1ea3ng c\u00e1ch nh\u1ea5t \u0111\u1ecbnh ra b\u1ea1n s\u1ebd nghe kh\u00f4ng r\u00f5, n\u1ebfu c\u00e1ch xa h\u01a1n n\u1eefa b\u1ea1n s\u1ebd ho\u00e0n to\u00e0n kh\u00f4ng nghe th\u1ea5y \u00e2m thanh.<\/p>\n\n\n\n<p>Ban \u0111\u00eam v\u00e0 bu\u1ed5i s\u00e1ng s\u1edbm th\u00ec ng\u01b0\u1ee3c l\u1ea1i, nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng kh\u00ed \u1edf g\u1ea9n m\u1eb7t \u0111\u1ea5t th\u1ea5p h\u01a1n so v\u1edbi \u1edf tr\u00ean cao, sau khi ti\u1ebfng chu\u00f4ng truy\u1ec1n \u0111i n\u00f3 s\u1ebd ti\u1ebfn v\u1ec1 ph\u00eda m\u1eb7t \u0111\u1ea5t n\u01a1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, v\u00ec v\u1eady \u1edf n\u01a1i r\u1ea5t xa ng\u01b0\u1eddi ta v\u1eabn c\u00f3 th\u1ec3 nghe r\u00f5 ti\u1ebfng chu\u00f4ng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00f3 ng\u01b0\u1eddi s\u1ebd n\u00f3i: \u201c\u0110\u00f3 l\u00e0 v\u00ec ban \u0111\u00eam v\u00e0 bu\u1ed5i s\u00e1ng s\u1edbm m\u00f4i tr\u01b0\u1eddng y\u00ean t\u0129nh, c\u00f2n ban ng\u00e0y th\u00ec c\u00f3 nhi\u1ec1u ti\u1ebfng \u1ed3n\u201d. \u0110i\u1ec1u \u0111\u00f3 \u0111\u00fang, nh\u01b0ng ch\u1ec9 l\u00e0 ph\u1ea9n nh\u1ecf v\u00e0 c\u0169ng kh\u00f4ng ho\u00e0n ch\u1ec9nh. B\u1ea1n c\u00f3 bi\u1ebft nguy\u00ean nh\u00e2n ch\u1ee7 y\u1ebfu kh\u00f4ng? \u0110\u00f3 l\u00e0 v\u00ec \u00e2m thanh bi\u1ebft \u201c\u0111i v\u00f2ng\u201d. \u00c2m [&hellip;]<\/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":[1,15],"tags":[],"class_list":["post-10788","post","type-post","status-publish","format-standard","hentry","category-general","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10788","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=10788"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10788\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10788"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10788"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}