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
T\u1ea5t c\u1ea3 \u00e2m thanh \u0111\u01b0\u1ee3c t\u1ea1o n\u00ean b\u1edfi nh\u1eefng ch\u1ea5n \u0111\u1ed9ng t\u1edbi lui r\u1ea5t nhanh g\u1ecdi l\u00e0 s\u1ef1 rung \u0111\u1ed9ng. S\u1ef1 rung \u0111\u1ed9ng l\u00e0 ngu\u1ed3n g\u1ed1c c\u1ee7a t\u1ea5t c\u1ea3 m\u1ecdi \u00e2m thanh.<\/p>\n\n\n\n
\u00c2m thanh \u0111i qua v\u1eadt rung \u0111\u1ebfn tai ta l\u00e0 nh\u1edd v\u1eadt chuy\u00ean ch\u1edf \u00e2m thanh. V\u1eadt n\u00e0y c\u00f3 th\u1ec3 \u1edf d\u1ea1ng r\u1eafn, l\u1ecfng hay kh\u00ed.<\/p>\n\n\n\n
\u00c2m thanh \u0111i v\u1eadt rung \u0111\u1ebfn tai ta b\u1eb1ng c\u00e1ch n\u00e9n nh\u1eefng s\u00f3ng trong kh\u00f4ng kh\u00ed. V\u1eadt rung \u0111\u1ea9y c\u00e1c ph\u00e2n t\u1eed kh\u00f4ng kh\u00ed nh\u1ecf li ti s\u00e1t v\u00e0o nhau v\u00e0 nh\u1eefng ph\u00e2n t\u1eed n\u00e0y b\u1ecb n\u00e9n l\u1ea1i, d\u1ed3n l\u1ea1i v\u1edbi nhau. Khi v\u1eadt rung tr\u1edf l\u1ea1i tr\u1ea1ng th\u00e1i nguy\u00ean tr\u1ea1ng, n\u00f3 \u0111\u1ec3 l\u1ea1i m\u1ed9t kho\u1ea3ng tr\u1ed1ng v\u1edbi l\u01b0\u1ee3ng ph\u00e2n t\u1eed kh\u00f4ng kh\u00ed \u00edt h\u01a1n. Kh\u00f4ng kh\u00ed b\u1ecb l\u00e0m m\u1ecfng \u0111i \u1ea5y g\u1ecdi l\u00e0 s\u1ef1 gi\u00e3n kh\u00ed. L\u00e0n s\u00f3ng \u00e2m thanh \u0111\u01b0\u1ee3c t\u1ea1o n\u00ean b\u1edfi s\u1ef1 n\u00e9n kh\u00ed v\u00e0 gi\u00e3n kh\u00ed nh\u01b0 th\u1ebf.<\/p>\n\n\n\n
\u00c2m thanh kh\u00f4ng nh\u1eefng \u0111i qua n\u01b0\u1edbc theo c\u00e1ch n\u00e0y, m\u00e0 trong n\u01b0\u1edbc, v\u1eadn t\u1ed1c c\u1ee7a \u00e2m thanh c\u00f2n nhanh h\u01a1n g\u1ea5p b\u1ed1n l\u1ea7n trong kh\u00f4ng kh\u00ed. \u00c2m thanh \u0111i qua kh\u00f4ng kh\u00ed v\u1edbi v\u1eadn t\u1ed1c 335m m\u1ed9t gi\u00e2y. \u00c2m thanh \u0111i qua n\u01b0\u1edbc bi\u1ec3n \u0111\u1ed9 1.463m m\u1ed9t gi\u00e2y.<\/p>\n\n\n\n
\u00c2m thanh \u0111i qua n\u01b0\u1edbc r\u1ea5t c\u00f3 l\u1ee3i cho con ng\u01b0\u1eddi. T\u00e0u th\u1ee7y v\u00e0 t\u00e0u ng\u1ea7m \u0111\u01b0\u1ee3c trang b\u1ecb nh\u1eefng d\u1ee5ng c\u1ee5 \u0111\u1ec3 \u0111o \u0111\u1ed9 s\u00e2u b\u1eb1ng \u00e2m thanh ho\u1eb7c \u0111\u1ecbnh h\u01b0\u1edbng hay kho\u1ea3ng c\u00e1ch t\u1eeb t\u00e0u n\u00e0y \u0111\u1ebfn t\u00e0u kia, hay t\u1eeb t\u00e0u \u0111\u1ebfn c\u00e1c l\u1edbp \u0111\u00e1 ng\u1ea7m.<\/p>\n\n\n\n
Ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 bi\u1ebft \u0111\u1ed9 s\u00e2u c\u1ee7a n\u01b0\u1edbc d\u01b0\u1edbi con t\u00e0u b\u1eb1ng c\u00e1ch g\u1edfi \u0111i nh\u1eefng t\u00edn hi\u1ec7u \u00e2m thanh t\u1eeb m\u1ed9t loa ph\u00f3ng thanh \u0111\u1eb7t d\u01b0\u1edbi n\u01b0\u1edbc, v\u00e0 t\u00ednh ra kho\u1ea3ng c\u00e1ch th\u1eddi gian khi \u00e2m thanh d\u1ed9i v\u1ec1 t\u1eeb \u0111\u00e1y bi\u1ec3n.<\/p>\n\n\n\n
Ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 \u0111o kho\u1ea3ng c\u00e1ch \u0111\u1ebfn c\u00e1c t\u00e0u kh\u00e1c v\u00e0 c\u00e1c d\u00e3y \u0111\u00e1 ng\u1ea7m b\u1eb1ng c\u00e1ch g\u1edfi \u0111i nh\u1eefng t\u00edn hi\u1ec7u \u00e2m thanh theo chi\u1ec1u ngang v\u00e0 \u0111\u1ee3i ti\u1ebfng d\u1ed9i. H\u01b0\u1edbng t\u00e0u v\u00e0 kho\u1ea3ng c\u00e1ch c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00e1ch n\u00e0y.<\/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 T\u1ea5t c\u1ea3 \u00e2m thanh \u0111\u01b0\u1ee3c t\u1ea1o n\u00ean b\u1edfi nh\u1eefng ch\u1ea5n \u0111\u1ed9ng t\u1edbi lui r\u1ea5t nhanh g\u1ecdi l\u00e0 s\u1ef1 rung \u0111\u1ed9ng. S\u1ef1 rung \u0111\u1ed9ng l\u00e0 ngu\u1ed3n g\u1ed1c c\u1ee7a t\u1ea5t c\u1ea3 m\u1ecdi \u00e2m thanh. \u00c2m thanh \u0111i qua v\u1eadt rung \u0111\u1ebfn […]<\/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-15832","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\/15832","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=15832"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15832\/revisions"}],"predecessor-version":[{"id":15833,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15832\/revisions\/15833"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=15832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=15832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=15832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}