T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 2 – Arkady Leokum t\u1ed1c \u0111\u1ed9 \u00e2m thanh trong kh\u00f4ng kh\u00ed v\u00e0o kho\u1ea3ng 335m\/gi\u00e2y. \u00c2m ba truy\u1ec1n \u0111i d\u01b0\u1edbi d\u1ea1ng s\u00f3ng nh\u01b0 m\u1ed9t khi ta n\u00e9m m\u1ed9t h\u00f2n s\u1ecfi xu\u1ed1ng m\u1eb7t n\u01b0\u1edbc. tuy nhi\u00ean, \u00e2m ba truy\u1ec1n \u0111i kh\u1eafp m\u1ecdi h\u01b0\u1edbng gi\u1ed1ng nh\u01b0 b\u00f3ng \u0111\u00e8n t\u1ecfa s\u00e1ng \u0111i m\u1ecdi h\u01b0\u1edbng v\u1eady.<\/p>\n\n\n\n
Khi g\u1eb7p v\u1eadt c\u1ea3n, \u00e2m ba d\u1ed9i l\u1ea1i c\u0169ng nh\u01b0 \u00e1nh s\u00e1ng ph\u1ea3n chi\u1ebfu tr\u1edf l\u1ea1i. Khi \u00e2m ba d\u1ed9i l\u1ea1i, ta nghe th\u1ea5y ti\u1ebfng vang. N\u00f3i c\u00e1ch kh\u00e1c, ti\u1ebfng vang ch\u1ec9 l\u00e0 m\u1ed9t \u00e2m \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i do s\u1ef1 ph\u1ea3n h\u1ed3i c\u1ee7a \u00e2m ba.<\/p>\n\n\n\n
Kh\u00f4ng ph\u1ea3i b\u1ea5t c\u1ee9 v\u1eadt c\u1ea3n n\u00e0o c\u0169ng t\u1ea1o ra ti\u1ebfng vang. C\u00f3 m\u1ed9t v\u00e0i v\u1eadt li\u1ec7u \u0111\u00e3 h\u00fat \u00e2m ba thay v\u00ec ph\u1ea3n d\u1ed9i l\u1ea1i. N\u1ebfu \u00e2m thanh b\u1ecb ph\u1ea3n d\u1ed9i l\u1ea1i do m\u1ed9t v\u1eadt c\u1ea3n th\u00ec ta ch\u1ec9 nghe \u0111\u01b0\u1ee3c m\u1ed9t ti\u1ebfng vang. \u0111\u00f3 l\u00e0 ti\u1ebfng vang \u0111\u01a1n. N\u1ebfu \u00e2m thanh g\u1eb7p hai hay nhi\u1ec1u v\u1eadt c\u1ea3n c\u00f3 kh\u1ea3 n\u0103ng ph\u1ea3n d\u1ed9i l\u1ea1i th\u00ec ti\u1ebfng vang \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i nhi\u1ec1u t\u00f9y s\u1ed1 l\u01b0\u1ee3ng v\u1eadt c\u1ea3n. tuy nhi\u00ean ti\u1ebfng vang y\u1ebfu d\u1ea7n m\u1ed7i l\u1ea7n ph\u1ea3n d\u1ed9i l\u1ea1i cho \u0111\u1ebfn khi t\u1eaft. Khi c\u00f3 nhi\u1ec1u ti\u1ebfng vang d\u1ed9i l\u1ea1i ng\u01b0\u1eddi ta g\u1ecdi \u0111\u00f3 l\u00e0 ti\u1ebfng d\u1ed9i ph\u1ee9c.<\/p>\n\n\n\n
Ch\u1ec9 c\u00f3 ti\u1ebfng vang khi v\u1eadt c\u1ea3n v\u00e0 ngu\u1ed3n \u00e2m c\u00f3 kho\u1ea3ng cho ph\u00e9p \u00e2m ba c\u00f3 \u0111\u1ee7 th\u1eddi gian truy\u1ec1n \u0111i v\u00e0 d\u1ed9i l\u1ea1i, ch\u1eb3ng h\u1ea1n kho\u1ea3ng c\u00e1ch 550 feet (kho\u1ea3ng 167m) t\u1eeb v\u1eadt c\u1ea3n, c\u1ea7n \u0111\u00fang m\u1ed9t gi\u00e2y m\u1edbi nghe \u0111\u01b0\u1ee3c ti\u1ebfng d\u1ed9i. ti\u1ebfng vang c\u00f3 th\u1ec3 truy\u1ec1n \u0111\u01b0\u1ee3c trong n\u01b0\u1edbc hay kh\u00f4ng t\u00f9y thu\u1ed9c v\u00e0o \u00e2m ba c\u00f3 truy\u1ec1n \u0111\u01b0\u1ee3c trong n\u01b0\u1edbc hay kh\u00f4ng. M\u00e0, ta \u0111\u00e3 bi\u1ebft, \u00e2m ba truy\u1ec1n \u0111\u01b0\u1ee3c trong n\u01b0\u1edbc v\u1edbi t\u1ed1c \u0111\u1ed9 x\u1ea5p x\u1ec9 b\u1ea3y l\u1ea7n nhanh h\u01a1n trong kh\u00f4ng kh\u00ed. Kh\u1ea3 n\u0103ng t\u1ea1o ti\u1ebfng vang trong n\u01b0\u1edbc c\u1ee7a \u00e2m thanh \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng t\u1ecf r\u1ea5t h\u1eefu d\u1ee5ng cho con ng\u01b0\u1eddi. C\u00e1c t\u00e0u \u0111i bi\u1ec3n th\u01b0\u1eddng \u0111\u01b0\u1ee3c trang b\u1ecb m\u00e1y ph\u00e1t ti\u1ebfng v\u00e0 thu ti\u1ebfng d\u1ed9i \u0111\u1ec3 ph\u00e1t hi\u1ec7n nh\u1eefng v\u1eadt d\u01b0\u1edbi n\u01b0\u1edbc. Nh\u1edd \u0111\u00f3 t\u00e0u c\u00f3 th\u1ec3 bi\u1ebft ch\u1ed7 c\u1ea1n, s\u00e2u trong bi\u1ec3n ho\u1eb7c c\u00e1c v\u1eadt c\u1ea3n g\u1ea7n v\u1edbi t\u00e0u \u0111\u1ec3 tr\u00e1nh. Kh\u00f4ng c\u00f3 lo\u1ea1i m\u00e1y n\u00e0y, c\u00e1c nh\u00e0 h\u1ecda \u0111\u1ed3 kh\u00f4ng th\u1ec3 v\u1ebd h\u1ecda \u0111\u1ed3 \u0111\u00e1y \u0111\u1ea1i d\u01b0\u01a1ng \u0111\u01b0\u1ee3c.<\/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 2 – Arkady Leokum t\u1ed1c \u0111\u1ed9 \u00e2m thanh trong kh\u00f4ng kh\u00ed v\u00e0o kho\u1ea3ng 335m\/gi\u00e2y. \u00c2m ba truy\u1ec1n \u0111i d\u01b0\u1edbi d\u1ea1ng s\u00f3ng nh\u01b0 m\u1ed9t khi ta n\u00e9m m\u1ed9t h\u00f2n s\u1ecfi xu\u1ed1ng m\u1eb7t n\u01b0\u1edbc. tuy nhi\u00ean, \u00e2m ba truy\u1ec1n \u0111i kh\u1eafp m\u1ecdi h\u01b0\u1edbng gi\u1ed1ng nh\u01b0 […]<\/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-13772","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\/13772","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=13772"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/13772\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=13772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=13772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=13772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}