T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 10 – Arkady Leokum<\/p>\n\n\n\n
Ch\u00fang ta c\u00f3 th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c c\u00e1c tinh t\u00fa tr\u00ean b\u1ea7u tr\u1eddi v\u00ec ch\u00fang ph\u00e1t ra \u00e1nh s\u00e1ng \u0111\u1ebfn t\u1eadn Tr\u00e1i \u0111\u1ea5t. \u00c1nh s\u00e1ng l\u00e0 m\u1ed9t h\u00ecnh th\u1ee9c c\u1ee7a s\u1ef1 b\u1ee9c x\u1ea1.<\/p>\n\n\n\n
Ngo\u00e0i \u00e1nh s\u00e1ng, c\u00e1c ng\u00f4i sao c\u00f2n ph\u00e1t ra nh\u1eefng h\u00ecnh th\u1ee9c b\u1ee9c x\u1ea1 kh\u00e1c, m\u1ed9t trong nh\u1eefng b\u1ee9c x\u1ea1 n\u00e0y l\u00e0 s\u00f3ng v\u00f4 tuy\u1ebfn. M\u1ed9t s\u1ed1 s\u00f3ng v\u00f4 tuy\u1ebfn n\u00e0y c\u00f3 th\u1ec3 b\u1eaft \u0111\u01b0\u1ee3c do nh\u1eefng \u0111\u00e0i thu v\u00f4 tuy\u1ebfn \u0111\u1eb7c bi\u1ec7t \u0111\u1eb7t tr\u00ean m\u1eb7t \u0111\u1ea5t. Nh\u1eefng \u0111\u00e0i n\u00e0y thu v\u00e0 ph\u00f3ng \u0111\u1ea1i s\u00f3ng v\u00f4 tuy\u1ebfn gi\u1ed1ng nh\u01b0 nh\u1eefng k\u00ednh thi\u00ean v\u0103n b\u00ecnh th\u01b0\u1eddng thu v\u00e0 ph\u00f3ng \u0111\u1ea1i h\u00ecnh \u1ea3nh s\u00f3ng \u00e1nh s\u00e1ng. Do \u0111\u00f3 thi\u1ebft b\u1ecb thu v\u00f4 tuy\u1ebfn n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 k\u00ednh thi\u00ean v\u0103n v\u00f4 tuy\u1ebfn v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng c\u1ee7a nh\u1eefng m\u00e1y n\u00e0y g\u1ecdi l\u00e0 thi\u00ean v\u0103n v\u00f4 tuy\u1ebfn.<\/p>\n\n\n\n
\u0110\u1ed9 d\u00e0i c\u1ee7a s\u00f3ng v\u00f4 tuy\u1ebfn ngo\u00e0i kh\u00f4ng gian r\u1ea5t ng\u1eafn so v\u1edbi \u0111\u1ed9 d\u00e0i c\u1ee7a s\u00f3ng d\u00f9ng cho \u0111\u00e0i ph\u00e1t thanh v\u00e0 truy\u1ec1n h\u00ecnh. V\u00ec v\u1eady nh\u1eefng nh\u00e0 thi\u00ean v\u0103n v\u00f4 tuy\u1ebfn ph\u1ea3i x\u00e2y d\u1ef1ng nh\u1eefng b\u1ed9 ph\u1eadn v\u00f4 tuy\u1ebfn v\u00e0 anten \u0111\u1eb7c bi\u1ec7t c\u00f3 kh\u1ea3 n\u0103ng b\u1eaft \u0111\u01b0\u1ee3c ch\u00fang.<\/p>\n\n\n\n
K\u00ednh thi\u00ean v\u0103n v\u00f4 tuy\u1ebfn g\u1ed3m c\u00f3 hai ph\u1ea7n – m\u1ed9t anten v\u00e0 m\u1ed9t m\u00e1y thu v\u00f4 tuy\u1ebfn. Anten th\u01b0\u1eddng l\u00e0 m\u1ed9t \u0111\u0129a kim lo\u1ea1i kh\u1ed5ng l\u1ed3, \u0111\u1eb7t tr\u00ean gi\u00e0n xoay n\u00ean c\u00f3 th\u1ec3 quay v\u1ec1 b\u1ea5t k\u1ef3 h\u01b0\u1edbng n\u00e0o c\u1ee7a b\u1ea7u tr\u1eddi. S\u00f3ng v\u00f4 tuy\u1ebfn do anten thu, th\u01b0\u1eddng r\u1ea5t y\u1ebfu n\u00ean c\u00e1c t\u00edn hi\u1ec7u ph\u1ea3i \u0111\u01b0\u1ee3c ph\u00f3ng \u0111\u1ea1i.<\/p>\n\n\n\n
Th\u01b0\u1eddng th\u01b0\u1eddng nh\u1eefng nh\u00e0 thi\u00ean v\u0103n v\u00f4 tuy\u1ebfn ghi l\u1ea1i s\u00f3ng v\u00f4 tuy\u1ebfn tr\u00ean gi\u1ea5y. M\u1ed9t m\u00e1y ghi h\u00ecnh b\u1eb1ng b\u00fat ghi l\u1ea1i nh\u1eefng t\u00edn hi\u1ec7u theo m\u1ed9t \u0111\u01b0\u1eddng ngo\u1eb1n ngo\u00e8o tr\u00ean m\u1ed9t cu\u1ed9n gi\u1ea5y, nh\u01b0 v\u1eady c\u00e1c nh\u00e0 thi\u00ean v\u0103n s\u1ebd c\u00f3 m\u1ed9t t\u1eadp t\u00e0i li\u1ec7u th\u01b0\u1eddng tr\u1ef1c v\u1ec1 vi\u1ec7c quan s\u00e1t c\u1ee7a h\u1ecd.<\/p>\n\n\n\n
K\u00ednh thi\u00ean v\u0103n v\u00f4 tuy\u1ebfn c\u00f3 th\u1ec3 v\u1eadn h\u00e0nh trong t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i th\u1eddi ti\u1ebft, kh\u00f4ng gi\u1ed1ng k\u00ednh thi\u00ean v\u0103n th\u01b0\u1eddng. K\u00ednh thi\u00ean v\u0103n v\u00f4 tuy\u1ebfn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng \u1edf h\u1ea7u h\u1ebft c\u00e1c n\u01a1i thu\u1eadn l\u1ee3i v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c d\u1ef1ng tr\u00ean v\u00f9ng \u0111\u1ea5t cao hay n\u00fai.<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 10 – Arkady Leokum Ch\u00fang ta c\u00f3 th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c c\u00e1c tinh t\u00fa tr\u00ean b\u1ea7u tr\u1eddi v\u00ec ch\u00fang ph\u00e1t ra \u00e1nh s\u00e1ng \u0111\u1ebfn t\u1eadn Tr\u00e1i \u0111\u1ea5t. \u00c1nh s\u00e1ng l\u00e0 m\u1ed9t h\u00ecnh th\u1ee9c c\u1ee7a s\u1ef1 b\u1ee9c x\u1ea1. Ngo\u00e0i \u00e1nh s\u00e1ng, c\u00e1c ng\u00f4i sao c\u00f2n […]<\/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-15864","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\/15864","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=15864"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15864\/revisions"}],"predecessor-version":[{"id":15865,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15864\/revisions\/15865"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=15864"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=15864"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=15864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}