T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 10 – Arkady Leokum<\/p>\n\n\n\n
B\u1eb1ng vi\u1ec7c khi\u1ebfn cho c\u00e1c kh\u00ed d\u1ec5 n\u1ed5 t\u1eeb ph\u00e1t s\u00fang bay ra gi\u00e3n n\u1edf v\u00e0o m\u1ed9t ng\u0103n tr\u01b0\u1edbc khi \u0111\u1eadp v\u00e0o kh\u00f4ng kh\u00ed xung quanh, b\u1ed9 ph\u1eadn gi\u1ea3m thanh c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m ti\u1ebfng \u1ed3n xu\u1ed1ng kho\u1ea3ng 10.000 l\u1ea7n ho\u1eb7c h\u01a1n. V\u1ea5n \u0111\u1ec1 l\u00e0, s\u00fang g\u00e2y ra ti\u1ebfng \u1ed3n r\u1ea5t l\u1edbn \u1edf v\u1ecb tr\u00ed xu\u1ea5t ph\u00e1t, g\u1ea7n 100dB \u1edf h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i s\u00fang v\u00e0 l\u00ean t\u1edbi 140dB \u0111\u1ed1i v\u1edbi c\u00e1c s\u00fang ng\u1eafn (\u0111\u1ee7 \u0111\u1ec3 g\u00e2y \u0111i\u1ebfc t\u1ee9c th\u1eddi) n\u00ean ch\u00fang s\u1ebd v\u1eabn g\u00e2y \u1ed3n ngay c\u1ea3 khi \u0111\u00e3 l\u1eafp b\u1ed9 ph\u1eadn gi\u1ea3m thanh. Tuy nhi\u00ean, khi s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i s\u00fang thi\u1ebft k\u1ebf<\/a> \u0111\u1eb7c bi\u1ec7t b\u1eafn \u0111\u1ea1n h\u1ea1 \u00e2m v\u00e0 m\u1ed9t b\u1ed9 ph\u1eadn gi\u1ea3m thanh, hi\u1ec7u qu\u1ea3 s\u1ebd r\u1ea5t m\u1ea1nh: ti\u1ebfng \u1ed3n c\u00f2n l\u1ea1i ch\u1ee7 y\u1ebfu l\u00e0 do ch\u1ed1t \u0111\u1eadp v\u00e0o v\u1ecf \u0111\u1ea1n, theo sau l\u00e0 m\u1ed9t ti\u1ebfng k\u00eau \u00f9 \u00f9 khi \u0111\u1ea1n r\u1eddi kh\u1ecfi s\u00fang.<\/p>\n","protected":false},"excerpt":{"rendered":" T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 10 – Arkady Leokum B\u1eb1ng vi\u1ec7c khi\u1ebfn cho c\u00e1c kh\u00ed d\u1ec5 n\u1ed5 t\u1eeb ph\u00e1t s\u00fang bay ra gi\u00e3n n\u1edf v\u00e0o m\u1ed9t ng\u0103n tr\u01b0\u1edbc khi \u0111\u1eadp v\u00e0o kh\u00f4ng kh\u00ed xung quanh, b\u1ed9 ph\u1eadn gi\u1ea3m thanh c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m ti\u1ebfng \u1ed3n xu\u1ed1ng kho\u1ea3ng 10.000 […]<\/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],"tags":[],"class_list":["post-15966","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15966","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=15966"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15966\/revisions"}],"predecessor-version":[{"id":15967,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15966\/revisions\/15967"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=15966"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=15966"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=15966"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}