S\u01b0\u01a1ng d\u00e0y \u0111\u1eb7c l\u00e0 m\u1ed9t tr\u1edf ng\u1ea1i l\u1edbn cho vi\u1ec7c giao th\u00f4ng b\u1eb1ng xe c\u1ed9. Khi \u00f4 t\u00f4 g\u1eb7p s\u01b0\u01a1ng m\u00f9 th\u01b0\u1eddng ph\u1ea3i b\u1eadt \u0111\u00e8n pha ch\u1ed1ng s\u01b0\u01a1ng m\u00f9 \u1edf tr\u01b0\u1edbc xe, \u0111\u00e8n s\u1ebd ph\u00e1t ra \u00e1nh s\u00e1ng m\u00e0u v\u00e0ng ch\u00f3i l\u1ecdi \u0111\u1ec3 m\u1edf \u0111\u01b0\u1eddng, v\u1eeba chi\u1ebfu s\u00e1ng \u0111o\u1ea1n \u0111\u01b0\u1eddng \u1edf ph\u00eda tr\u01b0\u1edbc, \u0111\u1ed3ng th\u1eddi ch\u1ec9 r\u00f5 v\u1ecb tr\u00ed c\u1ee7a m\u00ecnh, l\u00e0m cho xe c\u1ed9 v\u00e0 ng\u01b0\u1eddi \u0111i b\u1ed9 \u1edf ph\u00eda tr\u01b0\u1edbc c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y xe qua l\u1edbp s\u01b0\u01a1ng m\u00f9 d\u1ea7y \u0111\u1eb7c, nhanh ch\u00f3ng nh\u01b0\u1eddng tr\u00e1nh, \u0111\u1ec1 ph\u00f2ng s\u1ef1 c\u1ed1 va qu\u1ec7t c\u00f3 th\u1ec3 ph\u00e1t sinh.<\/p>\n\n\n\n
\u00c1nh s\u00e1ng do \u0111\u00e8n pha ch\u1ed1ng s\u01b0\u01a1ng m\u00f9 ph\u00e1t ra c\u00f3 m\u00e0u v\u00e0ng, \u0111i\u1ec1u \u0111\u00f3 \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 khoa h\u1ecdc sau khi \u0111\u00e3 nghi\u00ean c\u1ee9u k\u1ef9 c\u00e0ng v\u00e0 cho l\u00e0 t\u1ed1t nh\u1ea5t. T\u1ea1i sao kh\u00f4ng d\u00f9ng m\u00e0u \u0111\u1ecf n\u1ed5i b\u1eadt h\u01a1n. V\u00ec \u00e1nh s\u00e1ng lo\u1ea1i \u0111\u00e8n n\u00e0y c\u00f3 t\u00e1c d\u1ee5ng khu\u1ebfch t\u00e1n, m\u1edbi c\u00f3 th\u1ec3 l\u00e0m cho ch\u00f9m tia s\u00e1ng ph\u00e2n b\u1ed5 ph\u00eda tr\u01b0\u1edbc v\u1edbi m\u1ed9t di\u1ec7n t\u00edch r\u1ed9ng nh\u1ea5t, khi\u1ebfn cho ng\u01b0\u1eddi l\u00e1i xe v\u1eeba c\u00f3 th\u1ec3 nh\u00ecn r\u00f5 m\u1ee5c ti\u00eau l\u1ea1i kh\u00f4ng c\u1ea3m th\u1ea5y ch\u00f3i m\u1eaft. M\u00e0 c\u01b0\u1eddng \u0111\u1ed9 khu\u1ebfch t\u00e1n c\u1ee7a \u00e1nh s\u00e1ng v\u00e0ng l\u1ea1i g\u1ea5p n\u0103m l\u1ea7n so v\u1edbi m\u00e0u \u0111\u1ecf. Do \u0111\u00f3 d\u1ec5 th\u1ea5y r\u1eb1ng, d\u00f9ng \u00e1nh s\u00e1ng v\u00e0ng cho \u0111\u00e8n pha ch\u1ed1ng s\u01b0\u01a1ng m\u00f9 th\u00ec hi\u1ec7u qu\u1ea3 cao h\u01a1n nhi\u1ec1u so v\u1edbi \u00e1nh s\u00e1ng \u0111\u1ecf.<\/p>\n\n\n\n
M\u00e0u v\u00e0ng kh\u00f4ng ch\u1ec9 d\u00f9ng cho \u0111\u00e8n pha ch\u1ed1ng s\u01b0\u01a1ng m\u00f9 tr\u00ean \u00f4 t\u00f4. \u1ede c\u00e1c ng\u00e3 t\u01b0 \u0111\u01b0\u1eddng ph\u1ed1, v\u00e0o \u0111\u00eam khuya, ng\u01b0\u1eddi \u0111i b\u1ed9 th\u01b0a th\u1edbt, \u0111\u00e8n t\u00edn hi\u1ec7u giao th\u00f4ng ch\u1ec9 c\u00f3 m\u1ed9t ng\u1ecdn \u0111\u00e8n m\u00e0u v\u00e0ng ph\u00e1t ra \u00e1nh s\u00e1ng nh\u1ea5p nh\u00e1y kh\u00f4ng ng\u1eebng, gi\u00fap ng\u01b0\u1eddi l\u00e1i trong \u0111\u00eam khuya c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y t\u1eeb xa, k\u1ecbp th\u1eddi gi\u1ea3m t\u1ed1c \u0111\u1ed9, an to\u00e0n l\u00e1i qua ng\u00e3 t\u01b0.<\/p>\n\n\n\n
C\u00f3 ng\u01b0\u1eddi h\u1ecfi, trong quang ph\u1ed5 \u00e1nh s\u00e1ng, \u0111\u1ed9 khu\u1ebfch t\u00e1n c\u1ee7a m\u00e0u xanh da tr\u1eddi, xanh l\u00e1 c\u00e2y v\u00e0 t\u00edm kh\u00f4ng l\u1edbn h\u01a1n m\u00e0u v\u00e0ng hay sao? T\u1ea1i sao l\u1ea1i nh\u1ea5t thi\u1ebft d\u00f9ng m\u00e0u v\u00e0ng cho \u0111\u00e8n pha ch\u1ed1ng s\u01b0\u01a1ng m\u00f9. Nguy\u00ean do l\u00e0 \u00e1nh s\u00e1ng m\u00e0u xanh l\u00e1 c\u00e2y t\u1eeb l\u00e2u \u0111\u00e3 \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m t\u00edn hi\u1ec7u “an to\u00e0n” v\u00e0 “c\u00f3 th\u1ec3 th\u00f4ng qua” r\u1ed3i, c\u00f2n nh\u01b0 m\u00e0u xanh da tr\u1eddi v\u00e0 m\u00e0u t\u00edm, tuy r\u1eb1ng b\u01b0\u1edbc s\u00f3ng c\u1ee7a ch\u00fang \u0111\u1ec1u r\u1ea5t ng\u1eafn, \u0111\u1ed9 khu\u1ebfch t\u00e1n kh\u00e1 l\u1edbn, nh\u01b0ng ch\u00fang c\u00f3 m\u1ed9t nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 m\u00e0u s\u1eafc t\u1ed1i, h\u01a1n n\u1eefa m\u00e0u s\u1eafc c\u1ee7a ch\u00fang r\u1ea5t g\u1ea7n gi\u1ed1ng v\u1edbi m\u00e0u s\u1eafc b\u1ea7u tr\u1eddi l\u00fac r\u1ea1ng \u0111\u00f4ng, bu\u1ed5i ho\u00e0ng h\u00f4n v\u00e0 khi tr\u1eddi r\u00e2m, m\u00e0 s\u01b0\u01a1ng m\u00f9 l\u1ea1i r\u1ea5t hay x\u1ea3y ra v\u00e0o nh\u1eefng l\u00fac \u0111\u00f3. Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p \u1ea5y, n\u1ebfu d\u00f9ng \u00e1nh s\u00e1ng m\u00e0u xanh da tr\u1eddi ho\u1eb7c m\u00e0u t\u00edm r\u00f5 r\u00e0ng l\u00e0 kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u v\u1ec1 ti\u00eau ch\u00ed t\u00edn hi\u1ec7u.<\/p>\n\n\n\n
T\u1eeb kh\u00f3a: \u0110\u00e8n ch\u1ed1ng s\u01b0\u01a1ng m\u00f9; \u00c1nh s\u00e1ng v\u00e0ng; T\u00e1c d\u1ee5ng t\u00e1n x\u1ea1<\/p>\n","protected":false},"excerpt":{"rendered":"
S\u01b0\u01a1ng d\u00e0y \u0111\u1eb7c l\u00e0 m\u1ed9t tr\u1edf ng\u1ea1i l\u1edbn cho vi\u1ec7c giao th\u00f4ng b\u1eb1ng xe c\u1ed9. Khi \u00f4 t\u00f4 g\u1eb7p s\u01b0\u01a1ng m\u00f9 th\u01b0\u1eddng ph\u1ea3i b\u1eadt \u0111\u00e8n pha ch\u1ed1ng s\u01b0\u01a1ng m\u00f9 \u1edf tr\u01b0\u1edbc xe, \u0111\u00e8n s\u1ebd ph\u00e1t ra \u00e1nh s\u00e1ng m\u00e0u v\u00e0ng ch\u00f3i l\u1ecdi \u0111\u1ec3 m\u1edf \u0111\u01b0\u1eddng, v\u1eeba chi\u1ebfu s\u00e1ng \u0111o\u1ea1n \u0111\u01b0\u1eddng \u1edf ph\u00eda tr\u01b0\u1edbc, \u0111\u1ed3ng th\u1eddi […]<\/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":[15,16],"tags":[],"class_list":["post-8770","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-ky-thuat"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8770","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=8770"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8770\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8770"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8770"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8770"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}