Trong l\u1ecbch s\u1eed \u0111\u00e3 t\u1eebng x\u1ea3y ra hai s\u1ef1 ki\u1ec7n nh\u01b0 sau. S\u1ef1 ki\u1ec7n th\u1ee9 nh\u1ea5t x\u1ea3y ra khi Napoleon d\u1eabn \u0111\u1ea7u qu\u00e2n \u0111\u1ed9i Ph\u00e1p x\u00e2m l\u01b0\u1ee3c T\u00e2y Ban Nha. C\u00f3 m\u1ed9t \u0111o\u00e0n qu\u00e2n l\u00fac \u0111i qua chi\u1ebfc c\u1ea7u treo b\u1eb1ng x\u00edch s\u1eaft, s\u0129 quan ch\u1ec9 huy h\u00f4 to kh\u1ea9u l\u1ec7nh: “M\u1ed9t, hai, ba, b\u1ed1n!”<\/p>\n\n\n\n
R\u1eadp theo kh\u1ea9u l\u1ec7nh, c\u00e1c binh s\u0129 s\u1ea3i b\u01b0\u1edbc ch\u00e2n m\u1ea1nh m\u1ebd \u0111\u1ec1u \u0111\u1eb7n \u0111i l\u00ean c\u1ea7u. Khi h\u1ecd s\u1eafp \u0111\u1ebfn g\u1ea7n b\u1edd b\u00ean kia, b\u1ed7ng vang l\u00ean m\u1ed9t ti\u1ebfng \u1ea7m d\u1eef d\u1ed9i, m\u1ed9t \u0111\u1ea7u c\u1ea7u s\u1ee5p \u0111\u1ed5 xu\u1ed1ng s\u00f4ng l\u1edbn, n\u00e9m t\u1ea5t c\u1ea3 binh l\u00ednh v\u00e0 s\u0129 quan xu\u1ed1ng n\u01b0\u1edbc. R\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi b\u1ecb ch\u1ebft ch\u00ecm.<\/p>\n\n\n\n
M\u1ed9t s\u1ef1 ki\u1ec7n n\u1eefa x\u1ea3y ra \u1edf Xanh P\u00eatecbua, n\u01b0\u1edbc Nga. Khi \u0111o\u00e0n qu\u00e2n nh\u1ecbp nh\u00e0ng c\u1ea5t b\u01b0\u1edbc \u0111i qua chi\u1ebfc c\u1ea7u l\u1edbn tr\u00ean s\u00f4ng “Fontanka”, s\u1ef1 ki\u1ec7n g\u1eaby c\u1ea7u ch\u1ebft ng\u01b0\u1eddi y h\u1ec7t \u0111\u00e3 x\u1ea3y ra.<\/p>\n\n\n\n
R\u1ed1t cu\u1ed9c nguy\u00ean nh\u00e2n g\u00ec \u0111\u00e3 g\u00e2y ra nh\u1eefng s\u1ef1 ki\u1ec7n \u0111\u00f3?<\/p>\n\n\n\n
\u0110\u00f3 l\u00e0 do c\u1ed9ng h\u01b0\u1edfng. D\u1ea7m c\u1ea7u c\u00f3 t\u1ea7n s\u1ed1 rung \u0111\u1ed9ng ri\u00eang c\u1ee7a n\u00f3. Khi m\u1ed9t \u0111o\u00e0n ng\u01b0\u1eddi \u0111\u00f4ng \u0111\u00fac s\u1ea3i nh\u1eefng b\u01b0\u1edbc ch\u00e2n \u0111\u1ec1u \u0111\u1eb7n nh\u1ecbp nh\u00e0ng qua c\u1ea7u, l\u1ef1c t\u00e1c \u0111\u1ed9ng c\u00f3 t\u00ednh chu k\u00ec do b\u01b0\u1edbc ch\u00e2n sinh ra c\u0169ng c\u00f3 t\u1ea7n s\u1ed1 nh\u1ea5t \u0111\u1ecbnh. N\u1ebfu t\u1ea7n s\u1ed1 c\u1ee7a l\u1ef1c \u0111\u00f3 g\u1ea7n b\u1eb1ng (ho\u1eb7c b\u1eb1ng v\u1edbi) t\u1ea7n s\u1ed1 rung \u0111\u1ed9ng ri\u00eang c\u1ee7a c\u1ea7u th\u00ec s\u1ebd x\u1ea3y ra c\u1ed9ng h\u01b0\u1edfng. K\u1ebft qu\u1ea3 c\u1ee7a c\u1ed9ng h\u01b0\u1edfng l\u00e0 rung \u0111\u1ed9ng c\u1ee7a c\u1ea7u m\u1ed7i l\u00fac m\u1ed9t m\u1ea1nh l\u00ean, sau c\u00f9ng khi v\u01b0\u1ee3t qu\u00e1 s\u1ee9c ch\u1ecbu \u0111\u1ef1ng c\u1ee7a c\u1ea7u th\u00ec n\u00f3 b\u1ecb g\u00e3y \u0111\u1ed5.<\/p>\n\n\n\n
Trong \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y, chi\u1ebfc c\u1ea7u kh\u00f4ng ch\u1ec9 \u0111\u1ec3 cho con ng\u01b0\u1eddi \u0111i b\u1ed9 qua l\u1ea1i, m\u00e0 c\u00f2n c\u00f3 c\u00e1c lo\u1ea1i xe c\u1ed9 s\u1eed d\u1ee5ng n\u1eefa. L\u1ef1c t\u00e1c \u0111\u1ed9ng c\u1ee7a \u00f4 t\u00f4 sinh ra \u0111\u1ed1i v\u1edbi c\u1ea7u l\u1edbn h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi b\u01b0\u1edbc ch\u00e2n con ng\u01b0\u1eddi, song v\u00ec l\u1ef1c do \u00f4 t\u00f4 sinh ra kh\u00f4ng c\u00f3 t\u00ednh chu k\u00ec, v\u1ea3 l\u1ea1i tr\u00ean c\u1ea7u c\u00f2n c\u00f3 xe c\u1ed9 kh\u00e1c v\u00e0 ng\u01b0\u1eddi \u0111i b\u1ed9, l\u1ef1c do ch\u00fang sinh ra c\u0169ng kh\u00f4ng c\u00f3 nhi\u1ec7p \u0111i\u1ec7u nh\u1ea5t \u0111\u1ecbnh, v\u00ec v\u1eady c\u00e1i n\u00e0y c\u00e1i kia c\u00f3 th\u1ec3 tri\u1ec7t ti\u00eau m\u1ed9t ph\u1ea7n rung \u0111\u1ed9ng, kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m cho c\u1ea7u sinh ra c\u1ed9ng h\u01b0\u1edfng, n\u00ean c\u0169ng kh\u00f4ng c\u00f3 g\u00ec nguy hi\u1ec3m c\u1ea3. V\u00ec v\u1eady, c\u00e1c n\u01b0\u1edbc tr\u00ean th\u1ebf gi\u1edbi \u0111\u1ec1u c\u00f3 chung m\u1ed9t \u0111i\u1ec1u quy \u0111\u1ecbnh: khi \u0111\u1ed9i qu\u00e2n qua c\u1ea7u kh\u00f4ng \u0111\u01b0\u1ee3c r\u1eadp \u0111\u1ec1u b\u01b0\u1edbc ch\u00e2n.<\/p>\n\n\n\n
Trong cu\u1ed9c s\u1ed1ng, hi\u1ec7n t\u01b0\u1ee3ng c\u1ed9ng h\u01b0\u1edfng th\u01b0\u1eddng hay x\u1ea3y ra. V\u00ed d\u1ee5: ch\u01a1i \u0111u quay ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1 th\u00e2n m\u00ecnh th\u1ea5p xu\u1ed1ng v\u00e0 b\u1eadt l\u00ean \u0111\u1ec3 chi\u1ebfc \u0111u sinh ra c\u1ed9ng h\u01b0\u1edfng. C\u00f3 nh\u01b0 v\u1eady th\u00ec \u0111u quay m\u1edbi c\u00e0ng \u0111u c\u00e0ng cao. C\u00f2n khi leo thang, ph\u1ea3i l\u00fac th\u00ec leo nhanh, l\u00fac th\u00ec leo ch\u1eadm. L\u00e0m nh\u01b0 v\u1eady \u0111\u1ec3 cho c\u00e1i thang kh\u1ecfi sinh ra c\u1ed9ng h\u01b0\u1edfng b\u1edfi b\u01b0\u1edbc ch\u00e2n c\u1ee7a ch\u00fang ta. N\u1ebfu b\u1ecb c\u1ed9ng h\u01b0\u1edfng, c\u00e1i thang s\u1ebd b\u1ecb l\u1eafc l\u01b0 r\u1ea5t m\u1ea1nh.<\/p>\n\n\n\n
T\u1eeb kh\u00f3a: C\u1ea7u; C\u1ed9ng h\u01b0\u1edfng; T\u1ea7n s\u1ed1 rung \u0111\u1ed9ng ri\u00eang.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Trong l\u1ecbch s\u1eed \u0111\u00e3 t\u1eebng x\u1ea3y ra hai s\u1ef1 ki\u1ec7n nh\u01b0 sau. S\u1ef1 ki\u1ec7n th\u1ee9 nh\u1ea5t x\u1ea3y ra khi Napoleon d\u1eabn \u0111\u1ea7u qu\u00e2n \u0111\u1ed9i Ph\u00e1p x\u00e2m l\u01b0\u1ee3c T\u00e2y Ban Nha. C\u00f3 m\u1ed9t \u0111o\u00e0n qu\u00e2n l\u00fac \u0111i qua chi\u1ebfc c\u1ea7u treo b\u1eb1ng x\u00edch s\u1eaft, s\u0129 quan ch\u1ec9 huy h\u00f4 to kh\u1ea9u l\u1ec7nh: “M\u1ed9t, hai, ba, b\u1ed1n!” […]<\/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":[15,7],"tags":[],"class_list":["post-5604","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5604","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=5604"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5604\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=5604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=5604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=5604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}