Nh\u01b0\u0303ng n\u0103m g\u00e2\u0300n \u0111\u00e2y, tr\u00ean thi\u0323 tr\u01b0\u01a1\u0300ng \u0111a\u0303 xu\u00e2\u0301t hi\u00ea\u0323n m\u00f4\u0323t loa\u0323i tivi m\u01a1\u0301i – tivi si\u00eau ne\u0301t v\u01a1\u0301i ch\u00e2\u0301t l\u01b0\u01a1\u0323ng hi\u0300nh a\u0309nh r\u00e2\u0301t t\u00f4\u0301t. V\u00e2\u0323y tivi si\u00eau ne\u0301t la\u0300 gi\u0300? No\u0301 kha\u0301c gi\u0300 so v\u01a1\u0301i tivi bi\u0300nh th\u01b0\u01a1\u0300ng?<\/p>\n\n\n\n
Va\u0300o nh\u01b0\u0303ng n\u0103m 50 cu\u0309a th\u00ea\u0301 ky\u0309 XX, do ky\u0303 thu\u00e2\u0323t truy\u00ea\u0300n ti\u0301n hi\u00ea\u0323u truy\u00ea\u0300n hi\u0300nh co\u0300n ha\u0323n ch\u00ea\u0301, ti\u0301n hi\u00ea\u0323u \u0111\u01b0\u01a1\u0323c pha\u0301t \u0111i chu\u0309 y\u00ea\u0301u s\u01b0\u0309 du\u0323ng ph\u01b0\u01a1ng th\u01b0\u0301c dung hoa\u0300 gi\u01b0\u0303a ti\u0301n hi\u00ea\u0323u \u0111en tr\u0103\u0301ng va\u0300 ma\u0300u s\u0103\u0301c. Co\u0301 nghi\u0303a la\u0300 ti\u0301n hi\u00ea\u0323u truy\u00ea\u0300n hi\u0300nh \u0111\u01b0\u01a1\u0323c ma\u0303 ho\u0301a va\u0300o m\u00f4\u0323t loa\u0323i so\u0301ng \u0111i\u00ea\u0323n t\u01b0\u0300 d\u01b0\u01a1\u0301i da\u0323ng ti\u0301n hi\u00ea\u0323u “\u0111\u00f4\u0323 sa\u0301ng” hay co\u0300n go\u0323i la\u0300 ti\u0301n hi\u00ea\u0323u \u0111en tr\u0103\u0301ng (\u0111\u00f4\u0323 sa\u0301ng y\u00ea\u0301u ta\u0323o ra ma\u0300u \u0111en, \u0111\u00f4\u0323 sa\u0301ng ma\u0323nh ta\u0323o ra ma\u0300u tr\u0103\u0301ng), la\u0300m cho ti\u0301n hi\u00ea\u0323u ma\u0300u s\u0103\u0301c cu\u0309a tivi va\u0300 ti\u0301n hi\u00ea\u0323u \u0111\u00f4\u0323 sa\u0301ng cu\u0309a so\u0301ng truy\u00ea\u0300n hi\u0300nh g\u00e2y nhi\u00ea\u0303u l\u00e2\u0303n nhau \u01a1\u0309 m\u00f4\u0323t m\u01b0\u0301c \u0111\u00f4\u0323 nh\u00e2\u0301t \u0111i\u0323nh, do \u0111o\u0301 \u0111\u00f4\u0323 ne\u0301t cu\u0309a tivi kh\u00f4ng \u0111\u01b0\u01a1\u0323c s\u00e2u.<\/p>\n\n\n\n
N\u00ea\u0301u nh\u01b0 chu\u0301ng ta ph\u00e2n chia ca\u0309 chi\u00ea\u0300u ngang va\u0300 chi\u00ea\u0300u do\u0323c cu\u0309a tivi tha\u0300nh 525 ha\u0300ng, nh\u01b0 v\u00e2\u0323y ma\u0300n hi\u0300nh tivi \u0111\u01b0\u01a1\u0323c ph\u00e2n chia tha\u0300nh v\u00f4 s\u00f4\u0301 ca\u0301c \u00f4 vu\u00f4ng r\u00e2\u0301t nho\u0309, sau khi nh\u00e2\u0323n \u0111\u01b0\u01a1\u0323c ti\u0301n hi\u00ea\u0323u truy\u00ea\u0300n hi\u0300nh, chu\u0300m \u0111i\u00ea\u0323n t\u01b0\u0309 se\u0303 ma\u0303 ho\u0301a ca\u0301c ti\u0301n hi\u00ea\u0323u \u0111o\u0301 va\u0300 que\u0301t qua ca\u0301c \u00f4 vu\u00f4ng nho\u0309 na\u0300y v\u01a1\u0301i t\u00e2\u0300n s\u00f4\u0301 cu\u0300ng v\u01a1\u0301i t\u00e2\u0300n s\u00f4\u0301 cu\u0309a ca\u0301c ti\u0301n hi\u00ea\u0323u, ta\u0323o ra ca\u0301c hi\u0300nh a\u0309nh. \u00d4 vu\u00f4ng ca\u0300ng nho\u0309, nh\u01b0\u0303ng ha\u0323t h\u01a1\u0323p tha\u0300nh hi\u0300nh a\u0309nh ca\u0300ng nho\u0309, hi\u0300nh a\u0309nh ca\u0300ng ro\u0303 ne\u0301t va\u0300 sinh \u0111\u00f4\u0323ng h\u01a1n. Tivi si\u00eau ne\u0301t ra \u0111\u01a1\u0300i nh\u01a1\u0300 nguy\u00ean li\u0301 na\u0300y. Ca\u0301c ki\u0303 s\u01b0 \u0111i\u00ea\u0323n t\u01b0\u0309 \u0111a\u0303 pha\u0309i m\u00e2\u0301t 20 n\u0103m nghi\u00ean c\u01b0\u0301u \u0111\u00ea\u0309 cho ra \u0111\u01a1\u0300i loa\u0323i tivi si\u00eau ne\u0301t na\u0300y. T\u00f4\u0301c \u0111\u00f4\u0323 que\u0301t cu\u0309a chu\u0300m \u0111i\u00ea\u0323n t\u01b0\u0309 la\u0300 1125 \u00f4 vu\u00f4ng nho\u0309 tr\u00ean m\u00f4\u0323t gi\u00e2y, do \u0111o\u0301 m\u0103\u0301t th\u01b0\u01a1\u0300ng kh\u00f4ng th\u00ea\u0309 nhi\u0300n th\u00e2\u0301y chu\u0300m \u0111i\u00ea\u0323n t\u01b0\u0309 que\u0301t qua ca\u0301c \u00f4 vu\u00f4ng nho\u0309 tr\u00ean ma\u0300n hi\u0300nh, vi\u0300 no\u0301 chi\u0309 la\u0300 ca\u0301c \u0111i\u00ea\u0309m ch\u00e2\u0301m r\u00e2\u0301t nho\u0309. Khi chu\u0300m \u0111i\u00ea\u0323n t\u01b0\u0309 que\u0301t va\u0300o ma\u0300n huy\u0300nh quang, m\u00f4\u0303i m\u00f4\u0323t \u0111i\u00ea\u0309m ch\u00e2\u0301m tr\u00ean \u0111o\u0301 se\u0303 pha\u0301t ra a\u0301nh sa\u0301ng ta\u0323o tha\u0300nh hi\u0300nh a\u0309nh, hi\u0300nh a\u0309nh \u0111o\u0301 kh\u00f4ng m\u01a1\u0300 nha\u0323t nh\u01b0 tivi th\u00f4ng th\u01b0\u01a1\u0300ng, ma\u0300 ma\u0300u s\u0103\u0301c cu\u0309a no\u0301 t\u01b0\u01a1i sa\u0301ng, hi\u0300nh a\u0309nh sinh \u0111\u00f4\u0323ng co\u0301 \u0111\u00f4\u0323 ne\u0301t s\u00e2u.<\/p>\n\n\n\n
Hi\u00ea\u0323n ta\u0323i, Nh\u00e2\u0323t Ba\u0309n \u0111ang nghi\u00ean c\u01b0\u0301u ch\u00ea\u0301 ta\u0323o tivi si\u00eau ne\u0301t th\u00ea\u0301 h\u00ea\u0323 m\u01a1\u0301i v\u01a1\u0301i t\u00f4\u0301c \u0111\u00f4\u0323 que\u0301t cu\u0309a chu\u0300m \u0111i\u00ea\u0323n t\u01b0\u0309 l\u00ean t\u01a1\u0301i 2250 \u00f4 vu\u00f4ng tr\u00ean m\u00f4\u0323t gi\u00e2y, hi\u0300nh a\u0309nh cu\u0309a tivi na\u0300y ne\u0301t h\u01a1n r\u00e2\u0301t nhi\u00ea\u0300u l\u00e2\u0300n so v\u01a1\u0301i hi\u0300nh a\u0309nh cu\u0309a tivi si\u00eau ne\u0301t hi\u00ea\u0323n nay.<\/p>\n","protected":false},"excerpt":{"rendered":"
Nh\u01b0\u0303ng n\u0103m g\u00e2\u0300n \u0111\u00e2y, tr\u00ean thi\u0323 tr\u01b0\u01a1\u0300ng \u0111a\u0303 xu\u00e2\u0301t hi\u00ea\u0323n m\u00f4\u0323t loa\u0323i tivi m\u01a1\u0301i – tivi si\u00eau ne\u0301t v\u01a1\u0301i ch\u00e2\u0301t l\u01b0\u01a1\u0323ng hi\u0300nh a\u0309nh r\u00e2\u0301t t\u00f4\u0301t. V\u00e2\u0323y tivi si\u00eau ne\u0301t la\u0300 gi\u0300? No\u0301 kha\u0301c gi\u0300 so v\u01a1\u0301i tivi bi\u0300nh th\u01b0\u01a1\u0300ng? Va\u0300o nh\u01b0\u0303ng n\u0103m 50 cu\u0309a th\u00ea\u0301 ky\u0309 XX, do ky\u0303 thu\u00e2\u0323t truy\u00ea\u0300n ti\u0301n hi\u00ea\u0323u truy\u00ea\u0300n hi\u0300nh […]<\/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":[1,15],"tags":[],"class_list":["post-11277","post","type-post","status-publish","format-standard","hentry","category-general","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/11277","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=11277"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/11277\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=11277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=11277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=11277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}