M\u1ed9t s\u1ed1 v\u00f9ng \u1edf Ch\u00e2u M\u0129 khi nghe th\u1ea5y \u00e2m thanh “cala – cala”, ng\u01b0\u1eddi kh\u00f4ng c\u00f3 kinh nghi\u1ec7m \u0111\u1ea5y l\u00e0 ti\u1ebfng n\u01b0\u1edbc ch\u1ea3y t\u1eeb khe su\u1ed1i, nh\u01b0ng xung quanh l\u1ea1i ch\u1eb3ng c\u00f3 m\u1ed9t con su\u1ed1i n\u00e0o c\u1ea3. Ho\u00e1 ra, \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 ti\u1ebfng n\u01b0\u1edbc ch\u1ea3y, m\u00e0 l\u00e0 ti\u1ebfng k\u00eau ph\u00e1t ra t\u1eeb \u0111u\u00f4i c\u1ee7a m\u1ed9t lo\u1ea1i r\u1eafn c\u00f3 \u0111\u1ed9c t\u00ednh c\u1ef1c m\u1ea1nh. \u0110\u00f3 ch\u00ednh l\u00e0 r\u1eafn \u0111u\u00f4i k\u00eau c\u00f3 ti\u1ebfng t\u0103m l\u1eebng l\u1eaby.<\/p>\n\n\n\n
T\u1ea1i sao \u0111u\u00f4i c\u1ee7a n\u00f3 l\u1ea1i c\u00f3 th\u1ec3 ph\u00e1t ra \u0111\u01b0\u1ee3c ti\u1ebfng k\u00eau nh\u1ec9?<\/p>\n\n\n\n
Khi b\u1ea1n xem tr\u1eadn thi \u0111\u1ea5u b\u00f3ng r\u1ed5 ch\u1eb3ng h\u1ea1n, b\u1ea1n c\u1ed1 \u0111\u1ec3 \u00fd th\u1ea5y c\u00e1i c\u00f2i c\u1ee7a tr\u1ecdng t\u00e0i v\u1eabn th\u1ed5i kh\u00f4ng? N\u00f3 c\u00f3 c\u00e1i v\u1ecf b\u1eb1ng \u0111\u1ed3ng, b\u00ean trong l\u1eafp m\u1ed9t l\u1edbp m\u00e0ng ng\u0103n c\u00e1ch, h\u00ecnh th\u00e0nh hai c\u00e1i bong b\u00f3ng r\u1ed7ng. Khi ta d\u00f9ng s\u1ee9c th\u1ed5i, bong b\u00f3ng ch\u1ecbu s\u1ef1 rung \u0111\u1ed9ng c\u1ee7a kh\u00f4ng kh\u00ed th\u00ec ph\u00e1t ra ti\u1ebfng k\u00eau. \u0110u\u00f4i c\u1ee7a r\u1eafn \u0111u\u00f4i k\u00eau c\u0169ng c\u00f3 c\u1ea5u t\u1ea1o t\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady, ch\u1ec9 kh\u00e1c l\u00e0 v\u1ecf ngo\u00e0i c\u1ee7a n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 kim lo\u1ea1i m\u00e0 l\u00e0 t\u1ea7ng ch\u1ea5t s\u1eebng \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh b\u1edfi l\u1edbp da c\u1ee9ng, v\u00e2y th\u00e0nh m\u1ed9t c\u00e1i xoang r\u1ed7ng, m\u00e0ng s\u1eebng trong xoang ng\u0103n th\u00e0nh hai bong b\u00f3ng r\u1ed7ng v\u00f2ng quanh, \u0111\u00f3 c\u0169ng ch\u00ednh l\u00e0 hai c\u01a1 quan l\u00e0m rung \u0111\u1ed9ng kh\u00f4ng kh\u00ed. Khi r\u1eafn \u0111u\u00f4i k\u00eau qu\u1eaby m\u1ea1nh \u0111u\u00f4i c\u1ee7a m\u00ecnh, trong bong b\u00f3ng r\u1ed7ng h\u00ecnh th\u00e0nh m\u1ed9t lu\u1ed3ng kh\u00f4ng kh\u00ed di \u0111\u1ed9ng, c\u00f9ng v\u1edbi s\u1ef1 rung \u0111\u1ed9ng l\u00fac v\u00e0o l\u00fac ra c\u1ee7a lu\u1ed3ng kh\u00f4ng kh\u00ed di \u0111\u1ed9ng qua l\u1ea1i, th\u00ec bong b\u00f3ng r\u1ed7ng ph\u00e1t ra \u00e2m thanh t\u1eebng h\u1ed3i t\u1eebng h\u1ed3i m\u1ed9t.<\/p>\n\n\n\n
T\u1ea1i sao r\u1eafn \u0111u\u00f4i k\u00eau ph\u1ea3i ph\u00e1t ra ti\u1ebfng k\u00eau v\u1eady? C\u00f3 ng\u01b0\u1eddi cho r\u1eb1ng, n\u00f3 l\u1ee3i d\u1ee5ng \u00e2m thanh c\u1ee7a ti\u1ebfng n\u01b0\u1edbc ch\u1ea3y t\u1eeb trong khe su\u1ed1i ra \u0111\u1ec3 d\u1ee5 d\u1ed7 c\u00e1c \u0111\u1ed9ng v\u1eadt nh\u1ecf \u0111ang kh\u00e1t n\u01b0\u1edbc, \u0111\u00e2y c\u0169ng l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p b\u1eaft m\u1ed3i c\u1ee7a n\u00f3.<\/p>\n","protected":false},"excerpt":{"rendered":"
M\u1ed9t s\u1ed1 v\u00f9ng \u1edf Ch\u00e2u M\u0129 khi nghe th\u1ea5y \u00e2m thanh “cala – cala”, ng\u01b0\u1eddi kh\u00f4ng c\u00f3 kinh nghi\u1ec7m \u0111\u1ea5y l\u00e0 ti\u1ebfng n\u01b0\u1edbc ch\u1ea3y t\u1eeb khe su\u1ed1i, nh\u01b0ng xung quanh l\u1ea1i ch\u1eb3ng c\u00f3 m\u1ed9t con su\u1ed1i n\u00e0o c\u1ea3. Ho\u00e1 ra, \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 ti\u1ebfng n\u01b0\u1edbc ch\u1ea3y, m\u00e0 l\u00e0 ti\u1ebfng k\u00eau ph\u00e1t ra t\u1eeb \u0111u\u00f4i […]<\/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-8467","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\/8467","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=8467"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8467\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}