{"id":14578,"date":"2021-11-27T15:35:43","date_gmt":"2021-11-27T08:35:43","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=14578"},"modified":"2021-11-27T15:35:44","modified_gmt":"2021-11-27T08:35:44","slug":"tau-ngam-lan-duoi-nuoc-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/tau-ngam-lan-duoi-nuoc-nhu-the-nao\/","title":{"rendered":"T\u00e0u ng\u1ea7m l\u1eb7n d\u01b0\u1edbi n\u01b0\u1edbc nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"\n<p>T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 5 &#8211; Arkady Leokum<\/p>\n\n\n\n<p>S\u1ef1 tr\u1ed3i l\u00ean, l\u1eb7n xu\u1ed1ng c\u1ee7a t\u00e0u ng\u1ea7m &#8211; v\u1ec1 nguy\u00ean t\u1eafc m\u00e0 n\u00f3i &#8211; th\u00ec r\u1ea5t \u0111\u01a1n gi\u1ea3n. T\u00e0u ng\u1ea7m hi\u1ec7n \u0111\u1ea1i c\u00f3 hai l\u1edbp v\u1ecf. V\u1eadt \u0111\u1ec3 d\u1eb1n t\u00e0u cho n\u1eb7ng \u0111\u1ec3 t\u00e0u ch\u00ecm xu\u1ed1ng l\u00e0 n\u01b0\u1edbc. N\u01b0\u1edbc \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o gi\u1eefa hai l\u1edbp v\u1ecf \u0111\u00f3. mu\u1ed1n n\u1ed5i l\u00ean, ch\u1ec9 c\u1ea7n b\u01a1m n\u01b0\u1edbc gi\u1eefa l\u1edbp v\u1ecf \u0111\u00f3 ra l\u00e0 t\u00e0u tr\u1ed3i l\u00ean. \u0111\u00f3, \u0111\u01a1n gi\u1ea3n v\u1eady th\u00f4i!<\/p>\n\n\n\n<p>Khi t\u00e0u l\u1eb7n xu\u1ed1ng, nh\u1eefng c\u00e1i \u201cvan\u201d (n\u1eafp) \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201ckingston\u201d d\u01b0\u1edbi \u0111\u00e1y t\u00e0u \u0111\u01b0\u1ee3c m\u1edf ra, n\u01b0\u1edbc \u00f9a v\u00e0o ng\u0103n gi\u1eefa hai v\u1ecf t\u00e0u, kh\u00f4ng kh\u00ed trong c\u00e1c ng\u0103n gi\u1eefa hai v\u00e1ch t\u00e0u \u0111\u01b0\u1ee3c cho tho\u00e1t ra ngo\u00e0i qua m\u1ed9t van kh\u00e1c \u1edf ph\u00eda tr\u00ean. T\u00e0u n\u1eb7ng, l\u1eb7n xu\u1ed1ng.<\/p>\n\n\n\n<p>Khi mu\u1ed1n tr\u1ed3i l\u00ean th\u00ec \u0111\u00f3ng ch\u1eb7t van tho\u00e1t kh\u00ed r\u1ed3i b\u01a1m n\u01b0\u1edbc trong ng\u0103n ch\u1ee9a qua c\u00e1c van \u201ckingston\u201d. T\u00e0u nh\u1eb9, n\u1ed5i l\u00ean. \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n t\u00e0u ng\u1ea7m tr\u1ed3i, l\u1eb7n th\u00ec ph\u1ea3i c\u00f3 b\u00e1nh l\u00e1i ngang g\u1eafn v\u00e0o th\u00e2n t\u00e0u. \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n t\u00e0u \u0111i t\u1edbi, \u0111i lui th\u00ec c\u0169ng c\u00f3 b\u00e1nh l\u00e1i nh\u01b0 t\u00e0u ch\u1ea1y tr\u00ean m\u1eb7t bi\u1ec3n.<\/p>\n\n\n\n<p>T\u00e0u ng\u1ea7m \u0111\u01b0\u1ee3c chia ra th\u00e0nh \u201cbu\u1ed3ng\u201d c\u00f3 v\u00e1ch ng\u0103n r\u1ea5t v\u1eefng ch\u1eafc \u0111\u1ec3 ng\u1eeba khi t\u00e0u l\u1ee7ng th\u00ec n\u01b0\u1edbc ch\u1ec9 tr\u00e0n v\u00e0o \u201cbu\u1ed3ng\u201d \u0111\u00f3 th\u00f4i. C\u1eeda c\u1ee7a c\u00e1c bu\u1ed3ng n\u00e0y ch\u1eafc ch\u1eafn v\u00e0 r\u1ea5t kh\u00edt (k\u00edn) \u0111\u1ec3 n\u01b0\u1edbc kh\u00f4ng th\u1ec3 ng\u1ea5m qua. T\u00e0u ng\u1ea7m c\u0169ng c\u00f3 c\u1eeda tho\u00e1t hi\u1ec3m v\u00e0 \u201cph\u1ed5i\u201d \u0111\u1ec3 d\u00f9ng trong tr\u01b0\u1eddng h\u1ee3p kh\u1ea9n c\u1ea5p.<\/p>\n\n\n\n<p>L\u1eb7n d\u01b0\u1edbi n\u01b0\u1edbc, t\u00e0u ng\u1ea7m l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ecbnh h\u01b0\u1edbng \u0111i? S\u1ef1 quan s\u00e1t ph\u00eda b\u00ean tr\u00ean m\u1eb7t n\u01b0\u1edbc l\u00e0 nh\u1edd m\u1ed9t d\u1ee5ng c\u1ee5 g\u1ecdi l\u00e0 k\u00ednh ti\u1ec1m v\u1ecdng g\u1ed3m m\u1ed9t \u1ed1ng d\u00e0i (periscope) th\u00f2 t\u1eeb ph\u00eda trong t\u00e0u ra ngo\u00e0i. K\u00ednh n\u00e0y g\u1ed3m nhi\u1ec1u l\u0103ng k\u00ednh ph\u1ed1i h\u1ee3p v\u1edbi nhau nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ee9ng d\u01b0\u1edbi cu\u1ed1i \u1ed1ng k\u00ednh v\u1eabn c\u00f3 th\u1ec3 nh\u00ecn ph\u00eda b\u00ean tr\u00ean. B\u1eb1ng c\u00e1ch n\u00e2ng h\u1ea1 v\u00e0 xoay tr\u00f2n \u1ed1ng k\u00ednh t\u00f9y theo \u0111\u1ed9 l\u1eb7n c\u1ea1n hay s\u00e2u ta v\u1eabn c\u00f3 th\u1ec3 nh\u00ecn bao qu\u00e1t h\u1ebft m\u1eb7t bi\u1ec3n.<\/p>\n\n\n\n<p>T\u00e0u ng\u1ea7m c\u0169ng c\u00f3 \u201cl\u1ed7 tai\u201d t\u1ee9c l\u00e0 nh\u1eefng d\u1ee5ng c\u1ee5 thu th\u1eadp \u00e2m thanh \u0111\u1ec3 c\u00f3 th\u1ec3 nghe \u0111\u01b0\u1ee3c ti\u1ebfng \u0111\u1ed9ng c\u1ee7a c\u00e1c t\u00e0u \u1edf xa v\u00e0 c\u1ea3 rada \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng tr\u00ean m\u1eb7t bi\u1ec3n.<\/p>\n\n\n\n<p>Chi\u1ebfc t\u00e0u ng\u1ea7m ch\u1ea1y b\u1eb1ng nguy\u00ean t\u1eed \u0111\u1ea7u ti\u00ean tr\u00ean th\u1ebf gi\u1edbi \u0111\u01b0\u1ee3c \u0111\u00f3ng t\u1eeb n\u0103m 1951 v\u00e0 h\u1ea1 th\u1ee7y ng\u00e0y 21.7.1955.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 5 &#8211; Arkady Leokum S\u1ef1 tr\u1ed3i l\u00ean, l\u1eb7n xu\u1ed1ng c\u1ee7a t\u00e0u ng\u1ea7m &#8211; v\u1ec1 nguy\u00ean t\u1eafc m\u00e0 n\u00f3i &#8211; th\u00ec r\u1ea5t \u0111\u01a1n gi\u1ea3n. T\u00e0u ng\u1ea7m hi\u1ec7n \u0111\u1ea1i c\u00f3 hai l\u1edbp v\u1ecf. V\u1eadt \u0111\u1ec3 d\u1eb1n t\u00e0u cho n\u1eb7ng \u0111\u1ec3 t\u00e0u ch\u00ecm xu\u1ed1ng l\u00e0 n\u01b0\u1edbc. [&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":[15],"tags":[],"class_list":["post-14578","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\/14578","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=14578"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14578\/revisions"}],"predecessor-version":[{"id":14579,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14578\/revisions\/14579"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14578"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14578"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14578"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}