{"id":10272,"date":"2021-11-21T19:43:14","date_gmt":"2021-11-21T12:43:14","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=10272"},"modified":"2021-11-21T19:43:15","modified_gmt":"2021-11-21T12:43:15","slug":"tai-sao-dia-tu-co-the-luu-tru-tin","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/tai-sao-dia-tu-co-the-luu-tru-tin\/","title":{"rendered":"T\u1ea1i sao \u0111\u0129a t\u1eeb c\u00f3 th\u1ec3 l\u01b0u tr\u1eef tin?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u0110\u0129a t\u1eeb c\u1ee7a m\u00e1y t\u00ednh c\u00f3 th\u1ec3 l\u01b0u tr\u1eef tin v\u00ec \u0111\u00e3 d\u00f9ng k\u0129 thu\u1eadt ghi t\u1eeb v\u00e0 ph\u01b0\u01a1ng ph\u00e1p l\u01b0u tr\u1eef tr\u1ef1c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean \u0111\u0129a ng\u01b0\u1eddi ta \u0111\u00e3 ph\u1ee7 m\u1ed9t l\u1edbp v\u1eadt li\u1ec7u m\u1ecfng c\u00f3 t\u1eeb t\u00ednh. \u0110\u0129a s\u1ebd b\u1ecb nhi\u1ec5m t\u1eeb theo c\u00e1ch th\u1ee9c x\u00e1c \u0111\u1ecbnh v\u00e0 tr\u1edf th\u00e0nh c\u00e1i \u0111\u0129a c\u00f3 th\u1ec3 l\u01b0u tr\u1eef tin. V\u1eadt li\u1ec7u c\u00f3 t\u1eeb t\u00ednh \u0111\u01b0\u1ee3c ph\u1ee7 l\u00ean m\u00e0ng plastic v\u00e0 ch\u00fang tr\u1edf th\u00e0nh \u0111\u0129a m\u1ec1m, ph\u1ee7 l\u00ean \u0111\u0129a nh\u00f4m c\u1ee9ng (c\u0169ng c\u00f3 th\u1ec3 d\u00f9ng \u0111\u0129a g\u1ed1m s\u1ee9 ho\u1eb7c pha l\u00ea) th\u00ec ch\u00fang th\u00e0nh \u0111\u0129a c\u1ee9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ec1 m\u1eb7t c\u1ee7a \u0111\u0129a t\u1eeb ta c\u00f3 th\u1ec3 th\u1ea5y v\u00f4 s\u1ed1 \u0111i\u1ec3m. C\u00e1c \u0111i\u1ec3m sau khi nhi\u1ec5m t\u1eeb th\u00ec c\u00f3 c\u1ef1c t\u00ednh kh\u00e1c nhau, l\u1ea7n l\u01b0\u1ee3t bi\u1ec3u th\u1ecb cho s\u1ed1 0 ho\u1eb7c 1. Do \u0111\u1ecbnh v\u1ecb c\u1ee7a nh\u1eefng \u0111i\u1ec3m n\u00e0y th\u01b0\u1eddng l\u00e0 kh\u00f4ng th\u1eadt ch\u00ednh x\u00e1c, n\u00ean ph\u1ea3i d\u00f9ng c\u00e1ch nh\u01b0 chia cung \u0111\u1ec3 gi\u00fap cho vi\u1ec7c t\u00ecm ki\u1ebfm v\u1ecb tr\u00ed ghi, v\u00e0 \u0111\u00f3 ch\u00ednh l\u00e0 m\u1ed9t l\u00ed do t\u1ea1i sao tr\u01b0\u1edbc khi d\u00f9ng \u0111\u0129a t\u1eeb th\u00ec ta ph\u1ea3i \u0111\u1ecbnh d\u1ea1ng. Vi\u1ec7c ghi v\u00e0 \u0111\u1ecdc tin tr\u00ean b\u0103ng t\u1eeb \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh theo tr\u00ecnh t\u1ef1. Mu\u1ed1n t\u00ecm ki\u1ebfm \u0111i\u1ec3m n\u00e0o \u0111\u00f3 tr\u00ean b\u0103ng, ta ch\u1ec9 c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u1ea7u m\u00e0 t\u00ecm ki\u1ebfm theo th\u1ee9 t\u1ef1. Nh\u01b0ng vi\u1ec7c ghi v\u00e0 \u0111\u1ecdc tin tr\u00ean \u0111\u0129a l\u1ea1i c\u00f3 th\u1ec3 ti\u1ebfn h\u00e0nh tr\u1ef1c ti\u1ebfp, v\u00ec \u0111\u1ea7u t\u1eeb c\u00f3 th\u1ec3 nhanh ch\u00f3ng t\u00ecm th\u1ea5y b\u1ea5t k\u1ef3 \u0111i\u1ec3m n\u00e0o tr\u00ean \u0111\u0129a t\u1eeb. V\u00ec sao v\u1eady?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc h\u1ebft, \u0111\u0129a t\u1eeb c\u00f3 th\u1ec3 quay r\u1ea5t nhanh, v\u00ec v\u1eady t\u00ecm \u0111\u1ebfn m\u1ed7i m\u1ed9t \u0111i\u1ec3m tr\u00ean v\u00f2ng tr\u00f2n kh\u00f4ng m\u1ea5t bao nhi\u00eau th\u1eddi gian. N\u1ebfu t\u1ed1c \u0111\u1ed9 quay c\u1ee7a m\u1ed9t \u0111\u0129a m\u1ec1m m\u1ed7i ph\u00fat l\u00e0 300 v\u00f2ng th\u00ec 1\/5 gi\u00e2y n\u00f3 s\u1ebd quay \u0111\u01b0\u1ee3c m\u1ed9t v\u00f2ng. N\u1ebfu t\u1ed1c \u0111\u1ed9 quay c\u1ee7a \u0111\u0129a c\u1ee9ng l\u00e0 3600 v\u00f2ng\/ph\u00fat th\u00ec ch\u1ec9 c\u1ea7n 1\/60 gi\u00e2y l\u00e0 n\u00f3 quay \u0111\u01b0\u1ee3c m\u1ed9t v\u00f2ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sau \u0111\u00f3 l\u00e0 \u0111\u1ea7u t\u1eeb c\u00f3 th\u1ec3 di \u0111\u1ed9ng theo h\u01b0\u1edbng \u0111\u01b0\u1eddng k\u00ednh, gi\u1ed1ng nh\u01b0 kim c\u1ea7n m\u00e1y quay \u0111\u0129a (record &#8211; player) c\u00f3 th\u1ec3 di \u0111\u1ed9ng t\u1eeb ngo\u00e0i v\u00e0o trong. \u0110\u0129a m\u1ec1m b\u00ecnh qu\u00e2n c\u1ea7n t\u1eeb 1\/6 gi\u00e2y l\u00e0 t\u00ecm \u0111\u1ebfn b\u1ea5t k\u1ef3 v\u1ecb tr\u00ed n\u00e0o, c\u00f2n \u0111\u0129a c\u1ee9ng ch\u1ec9 c\u1ea7n 1\/25 gi\u00e2y \u0111\u1ebfn 1\/70 gi\u00e2y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ta k\u1ebft h\u1ee3p di \u0111\u1ed9ng c\u1ee7a \u0111\u1ea7u t\u1eeb v\u00e0 chuy\u1ec3n \u0111\u1ed9ng quay c\u1ee7a \u0111\u0129a l\u1ea1i, \u0111\u1ea7u t\u1eeb s\u1ebd nhanh ch\u00f3ng t\u00ecm \u0111\u01b0\u1ee3c b\u1ea5t k\u1ef3 v\u1ecb tr\u00ed n\u00e0o tr\u00ean \u0111\u0129a t\u1eeb. Nh\u01b0 v\u1eady, \u0111\u0129a t\u1eeb c\u00f3 th\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u nhanh ch\u00f3ng v\u00e0 tr\u1ef1c ti\u1ebfp. (Hi\u1ec7n nay h\u1ea7u nh\u01b0 ng\u01b0\u1eddi ta kh\u00f4ng d\u00f9ng \u0111\u0129a m\u1ec1m &#8211; btv)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb kh\u00f3a: \u0110\u0129a t\u1eeb; Ghi t\u1eeb; Cung (sect\u01a1).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u0129a t\u1eeb c\u1ee7a m\u00e1y t\u00ednh c\u00f3 th\u1ec3 l\u01b0u tr\u1eef tin v\u00ec \u0111\u00e3 d\u00f9ng k\u0129 thu\u1eadt ghi t\u1eeb v\u00e0 ph\u01b0\u01a1ng ph\u00e1p l\u01b0u tr\u1eef tr\u1ef1c Tr\u00ean \u0111\u0129a ng\u01b0\u1eddi ta \u0111\u00e3 ph\u1ee7 m\u1ed9t l\u1edbp v\u1eadt li\u1ec7u m\u1ecfng c\u00f3 t\u1eeb t\u00ednh. \u0110\u0129a s\u1ebd b\u1ecb nhi\u1ec5m t\u1eeb theo c\u00e1ch th\u1ee9c x\u00e1c \u0111\u1ecbnh v\u00e0 tr\u1edf th\u00e0nh c\u00e1i \u0111\u0129a c\u00f3 th\u1ec3 l\u01b0u [&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":[13],"tags":[],"class_list":["post-10272","post","type-post","status-publish","format-standard","hentry","category-tin-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10272","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=10272"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10272\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}