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 h\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi tr\u00e1i \u0111\u1ea5t. C\u00e1i g\u00ec t\u1ea1o n\u00ean n\u00f3? Theo l\u00fd thuy\u1ebft v\u1ec1 ngu\u1ed3n g\u1ed1c c\u1ee7a th\u00e1i d\u01b0\u01a1ng h\u1ec7, c\u00e1ch \u0111\u00e2y kho\u1ea3ng 5 t\u1ec9 n\u0103m m\u1ed9t \u0111\u00e1m tinh v\u00e2n kh\u1ed5ng l\u1ed3 \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh v\u00e0 b\u1eaft \u0111\u1ea7u quay. N\u00f3 d\u1eb9t d\u1ea7n nh\u01b0 m\u1ed9t c\u00e1i \u0111\u0129a v\u00e0 kh\u1ed1i n\u00f3ng ch\u1ea3y \u1edf trung t\u00e2m bi\u1ebfn th\u00e0nh m\u1eb7t tr\u1eddi. Nh\u1eefng ph\u1ea7n ngo\u00e0i c\u1ee7a tinh v\u00e2n v\u1ee1 ra l\u00e0m th\u00e0nh nh\u1eefng kh\u1ed1i nh\u1ecf quay t\u00edt, ch\u00fang ngu\u1ed9i d\u1ea7n v\u00e0 th\u00e0nh nh\u1eefng h\u00e0nh tinh.<\/p>\n\n\n\n
V\u00ec v\u1eady, ch\u00fang ta c\u00f3 m\u1ed9t h\u1ec7 th\u1ed1ng nh\u1eefng h\u00e0nh tinh, trong \u0111\u00f3 c\u00f3 tr\u00e1i \u0111\u1ea5t \u0111ang v\u1eadn h\u00e0nh. T\u1ea1i sao tr\u00e1i \u0111\u1ea5t v\u00e0 c\u00e1c h\u00e0nh tinh kh\u00f4ng bay tr\u01b0\u1ee3t ra kh\u1ecfi kh\u00f4ng gian? \u0110\u00f3 l\u00e0 nh\u1edd tr\u1ecdng l\u1ef1c, s\u1ee9c h\u00fat c\u1ee7a m\u1eb7t tr\u1eddi.<\/p>\n\n\n\n
Theo \u0111\u1ecbnh lu\u1eadt chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a Newton, m\u1ed9t v\u1eadt \u0111ang chuy\u1ec3n \u0111\u1ed9ng v\u1eabn duy tr\u00ec s\u1ef1 chuy\u1ec3n \u0111\u1ed9ng \u1ea5y theo m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng, tr\u1eeb phi v\u1eadt \u1ea5y b\u1ecb t\u00e1c \u0111\u1ed9ng b\u1edfi m\u1ed9t l\u1ef1c b\u00ean ngo\u00e0i. Nh\u01b0 th\u1ebf, m\u1ed9t h\u00e0nh tinh \u0111ang chuy\u1ec3n \u0111\u1ed9ng \u1eaft ph\u1ea3i bay ra kh\u1ecfi m\u1eb7t tr\u1eddi theo m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng. Nh\u01b0ng l\u1ef1c b\u00ean ngo\u00e0i kh\u00f4ng cho ph\u00e9p n\u00f3 bay nh\u01b0 th\u1ebf v\u00e0 gi\u1eef n\u00f3 trong qu\u0129 \u0111\u1ea1o, \u0111\u00f3 l\u00e0 s\u1ee9c h\u00fat c\u1ee7a m\u1eb7t tr\u1eddi.<\/p>\n\n\n\n
M\u1ed9t h\u00e0nh tinh v\u1eadn h\u00e0nh trong qu\u0129 \u0111\u1ea1o c\u1ee7a n\u00f3 v\u1edbi m\u1ed9t v\u1eadn t\u1ed1c t\u00f9y thu\u1ed9c v\u00e0o kho\u1ea3ng c\u00e1ch t\u1eeb n\u00f3 \u0111\u1ebfn m\u1eb7t tr\u1eddi. H\u00e0nh tinh chuy\u1ec3n \u0111\u1ed9ng nhanh khi ti\u1ebfn g\u1ea7n ph\u00eda m\u1eb7t tr\u1eddi h\u01a1n l\u00e0 khi c\u00e1ch xa m\u1eb7t tr\u1eddi. Tr\u00e1i \u0111\u1ea5t v\u1eadn chuy\u1ec3n 302 c\u00e2y s\u1ed1 m\u1ed9t gi\u00e2y khi n\u00f3 g\u1ea7n m\u1eb7t tr\u1eddi nh\u1ea5t, v\u00e0 292 c\u00e2y s\u1ed1 m\u1ed9t gi\u00e2y khi xa m\u1eb7t tr\u1eddi nh\u1ea5t.<\/p>\n\n\n\n
M\u1ed9t h\u00e0nh tinh m\u00e0 qu\u0129 \u0111\u1ea1o g\u1ea7n m\u1eb7t tr\u1eddi h\u01a1n th\u00ec b\u1ecb m\u1eb7t tr\u1eddi h\u00fat m\u1ea1nh h\u01a1n m\u1ed9t h\u00e0nh tinh \u1edf xa. S\u1ee9c h\u00fat n\u00e0y m\u1ea1nh h\u01a1n c\u0169ng l\u00e0m cho h\u00e0nh tinh \u0111\u00f3 chuy\u1ec3n \u0111\u1ed9ng nhanh h\u01a1n m\u1ed9t h\u00e0nh tinh \u1edf xa. V\u00ed d\u1ee5, sao Th\u1ee7y v\u1eadn t\u1ed1c trung b\u00ecnh l\u00e0 47,9 c\u00e2y s\u1ed1 m\u1ed9t gi\u00e2y; Di\u00eam v\u01b0\u01a1ng tinh c\u00f3 t\u1ed1c \u0111\u1ed9 trung b\u00ecnh 46 c\u00e2y s\u1ed1 m\u1ed9t gi\u00e2y.<\/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 h\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi tr\u00e1i \u0111\u1ea5t. C\u00e1i g\u00ec t\u1ea1o n\u00ean n\u00f3? Theo l\u00fd thuy\u1ebft v\u1ec1 ngu\u1ed3n g\u1ed1c c\u1ee7a th\u00e1i d\u01b0\u01a1ng h\u1ec7, c\u00e1ch \u0111\u00e2y kho\u1ea3ng 5 t\u1ec9 n\u0103m m\u1ed9t \u0111\u00e1m tinh v\u00e2n kh\u1ed5ng l\u1ed3 \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh v\u00e0 […]<\/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-15898","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\/15898","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=15898"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15898\/revisions"}],"predecessor-version":[{"id":15899,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15898\/revisions\/15899"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=15898"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=15898"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=15898"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}