{"id":13476,"date":"2021-11-27T12:44:45","date_gmt":"2021-11-27T05:44:45","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=13476"},"modified":"2021-11-27T12:44:46","modified_gmt":"2021-11-27T05:44:46","slug":"cai-gi-khien-mat-troi-toa-sang-va-toa-nhiet","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/cai-gi-khien-mat-troi-toa-sang-va-toa-nhiet\/","title":{"rendered":"C\u00e1i g\u00ec khi\u1ebfn m\u1eb7t tr\u1eddi t\u1ecfa s\u00e1ng v\u00e0 t\u1ecfa nhi\u1ec7t?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 1 &#8211; Arkady Leokum<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00ecn ng\u00f4i sao ban \u0111\u00eam v\u00e0 m\u1eb7t tr\u1eddi ban ng\u00e0y, ta kh\u00f3 m\u00e0 tin \u0111\u01b0\u1ee3c \u0111\u00f3 l\u00e0 c\u00f9ng m\u1ed9t lo\u1ea1i thi\u00ean th\u1ec3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7t tr\u1eddi \u0111\u00edch th\u1ecb l\u00e0 m\u1ed9t ng\u00f4i sao, ng\u00f4i sao g\u1ea7n tr\u00e1i \u0111\u1ea5t nh\u1ea5t. C\u00f3 th\u1ec3 n\u00f3i \u0111\u1eddi s\u1ed1ng v\u1ea1n v\u1eadt tr\u00ean tr\u00e1i \u0111\u1ea5t l\u1ec7 thu\u1ed9c ch\u1eb7t ch\u1ebd v\u00e0o m\u1eb7t tr\u1eddi. Kh\u00f4ng c\u00f3 s\u1ee9c n\u00f3ng c\u1ee7a m\u1eb7t tr\u1eddi, s\u1ef1 s\u1ed1ng kh\u00f4ng th\u1ec3 kh\u1edfi ph\u00e1t \u0111\u01b0\u1ee3c. M\u00e0 d\u1ea7u cho c\u00f3 kh\u1edfi ph\u00e1t \u0111\u01b0\u1ee3c th\u00ec c\u0169ng kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u01b0\u1ee3c. Kh\u00f4ng c\u00f3 \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi th\u00ec l\u00e0m g\u00ec c\u00f3 c\u00e2y c\u1ecf. N\u1ebfu nh\u01b0 kh\u00f4ng c\u00f3 c\u00e2y c\u1ecf th\u00ec lo\u00e0i ng\u01b0\u1eddi, lo\u00e0i v\u1eadt l\u1ea5y g\u00ec m\u00e0 \u0103n? M\u1eb7t tr\u1eddi \u1edf c\u00e1ch xa tr\u00e1i \u0111\u1ea5t kho\u1ea3ng 149.500.000 km. Th\u1ec3 t\u00edch m\u1eb7t tr\u1eddi l\u1edbn h\u01a1n 1,3 tri\u1ec7u l\u1ea7n th\u1ec3 t\u00edch tr\u00e1i \u0111\u1ea5t. \u0111i\u1ec1u th\u00fa v\u1ecb l\u00e0 m\u1eb7t tr\u1eddi ch\u1ec9 l\u00e0 kh\u1ed1i h\u01a1i kh\u1ed5ng l\u1ed3 ch\u1edb kh\u00f4ng ph\u1ea3i l\u00e0 th\u1ec3 r\u1eafn nh\u01b0 tr\u00e1i \u0111\u1ea5t. B\u1eb1ng c\u00e1ch n\u00e0o d\u00e1m qu\u1ea3 quy\u1ebft m\u1eb7t tr\u1eddi ch\u1ec9 l\u00e0 m\u1ed9t kh\u1ed1i h\u01a1i? Nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a m\u1eb7t tr\u1eddi v\u00e0o kho\u1ea3ng 6.5000C. Nhi\u1ec7t \u0111\u1ed9 n\u00e0y ch\u1eb3ng nh\u1eefng \u0111\u1ee7 \u0111\u1ec3 l\u00e0m n\u00f3ng ch\u1ea3y m\u00e0 c\u00f2n l\u00e0m b\u1ed1c h\u01a1i b\u1ea5t c\u1ee9 th\u1ee9 kim lo\u1ea1i, ho\u1eb7c th\u1ee9 \u0111\u00e1 n\u00e0o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eady m\u1eb7t tr\u1eddi l\u00e0 m\u1ed9t kh\u1ed1i h\u01a1i kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t kh\u1eb3ng \u0111\u1ecbnh v\u00f5 \u0111o\u00e1n \u0111\u00e2u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1eddi tr\u01b0\u1edbc c\u00e1c nh\u00e0 khoa h\u1ecdc cho r\u1eb1ng s\u1edf d\u0129 m\u1eb7t tr\u1eddi t\u1ecfa s\u00e1ng t\u1ecfa nhi\u1ec7t l\u00e0 nh\u1edd \u0111\u1ed1t ch\u00e1y nguy\u00ean li\u1ec7u g\u00ec \u0111\u00f3. Nh\u01b0ng \u0111\u00e2u ph\u1ea3i m\u1eb7t tr\u1eddi m\u1edbi chi\u1ebfu s\u00e1ng v\u00e0 t\u1ecfa nhi\u1ec7t m\u1edbi v\u00e0i tri\u1ec7u n\u0103m tr\u01b0\u1edbc \u0111\u00e2y m\u00e0 n\u00f3 \u0111\u00e3 nh\u01b0 v\u1eady h\u00e0ng tr\u0103m tri\u1ec7u n\u0103m r\u1ed3i. V\u1eady th\u00ec nguy\u00ean li\u1ec7u ch\u1ea5t ch\u1ee9a \u1edf \u0111\u00e2u m\u00e0 l\u00f4i ra \u0111\u1ed1t d\u1eef v\u1eady? Ng\u00e0y nay c\u00e1c nh\u00e0 khoa h\u1ecdc tin r\u1eb1ng nhi\u1ec7t v\u00e0 quang c\u1ee7a m\u1eb7t tr\u1eddi l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh gi\u1ed1ng nh\u01b0 qu\u00e1 tr\u00ecnh x\u1ea3y ra khi n\u1ed5 bom nguy\u00ean t\u1eed, ngh\u0129a l\u00e0 qu\u00e1 tr\u00ecnh v\u1eadt ch\u1ea5t bi\u1ebfn th\u00e0nh n\u0103ng l\u01b0\u1ee3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7n t\u01b0\u1ee3ng bi\u1ebfn \u0111\u1ed5i n\u00e0y kh\u00e1c v\u1edbi hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ed1t ch\u00e1y. \u0111\u1ed1t ch\u00e1y l\u00e0 v\u1eadt ch\u1ea5t t\u1eeb d\u1ea1ng n\u00e0y bi\u1ebfn th\u00e0nh d\u1ea1ng kh\u00e1c. Th\u00ed d\u1ee5 c\u1ee7i bi\u1ebfn th\u00e0nh tro ch\u1eb3ng h\u1ea1n. Nh\u01b0ng khi v\u1eadt ch\u1ea5t bi\u1ebfn th\u00e0nh n\u0103ng l\u01b0\u1ee3ng th\u00ec ch\u1ec9 c\u1ea7n r\u1ea5t \u00edt c\u0169ng c\u00f3 th\u1ec3 bi\u1ebfn th\u00e0nh n\u0103ng l\u01b0\u1ee3ng kh\u1ed5ng l\u1ed3. M\u1ed9t ounce (t\u1ee9c 28,35 gram) v\u1eadt ch\u1ea5t c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t n\u0103ng l\u01b0\u1ee3ng \u0111\u1ee7 \u0111\u1ec3 l\u00e0m tan ch\u1ea3y m\u1ed9t tri\u1ec7u t\u1ea5n \u0111\u00e1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eady, n\u1ebfu gi\u1ea3 thi\u1ebft n\u00e0y \u0111\u00fang th\u00ec m\u1eb7t tr\u1eddi th\u01b0\u1eddng xuy\u00ean ph\u00e1t quang v\u00e0 t\u1ecfa nhi\u1ec7t t\u1eeb h\u1ed3i n\u00e0o t\u1edbi gi\u1edd nh\u01b0ng \u0111\u00e2u c\u00f3 hao h\u1edbt g\u00ec bao nhi\u00eau kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a n\u00f3. Ng\u01b0\u1eddi ta \u01b0\u1edbc t\u00ednh r\u1eb1ng ch\u1ec9 d\u00f9ng ch\u01b0a t\u1edbi m\u1ed9t ph\u1ea7n tr\u0103m kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a m\u00ecnh, m\u1eb7t tr\u1eddi c\u00f3 th\u1ec3 li\u00ean t\u1ee5c ph\u00e1t quang v\u00e0 t\u1ecfa nhi\u1ec7t trong v\u00f2ng 150 t\u1ef7 n\u0103m.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 1 &#8211; Arkady Leokum Nh\u00ecn ng\u00f4i sao ban \u0111\u00eam v\u00e0 m\u1eb7t tr\u1eddi ban ng\u00e0y, ta kh\u00f3 m\u00e0 tin \u0111\u01b0\u1ee3c \u0111\u00f3 l\u00e0 c\u00f9ng m\u1ed9t lo\u1ea1i thi\u00ean th\u1ec3. M\u1eb7t tr\u1eddi \u0111\u00edch th\u1ecb l\u00e0 m\u1ed9t ng\u00f4i sao, ng\u00f4i sao g\u1ea7n tr\u00e1i \u0111\u1ea5t nh\u1ea5t. C\u00f3 th\u1ec3 n\u00f3i [&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":[15],"tags":[],"class_list":["post-13476","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\/13476","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=13476"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/13476\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=13476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=13476"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=13476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}