N\u0103m 1984, t\u1ea1i l\u1ec5 khai m\u1ea1c Th\u1ebf v\u1eadn h\u1ed9i \u00d4lympic l\u1ea7n th\u1ee9 23 c\u1eed h\u00e0nh \u1edf Los Angeles n\u01b0\u1edbc M\u1ef9, tr\u00ean b\u1ea7u tr\u1eddi s\u00e2n v\u1eadn \u0111\u1ed9ng r\u1ed9ng l\u1edbn, c\u00f3 m\u1ed9t “ng\u01b0\u1eddi bay” t\u1eeb tr\u00ean cao bay t\u1edbi sau l\u01b0ng k\u00e9o theo m\u1ed9t lu\u1ed3ng kh\u00f3i c\u00f3 m\u00e0u s\u1eafc. Anh ta bay m\u1ed9t v\u00f2ng chung quanh s\u00e2n v\u1eadn \u0111\u1ed9ng, r\u1ed3i h\u1ea1 c\u00e1nh nh\u1eb9 nh\u00e0ng v\u00e0 chu\u1ea9n x\u00e1c xu\u1ed1ng ch\u00ednh gi\u1eefa s\u00e2n c\u1ecf. To\u00e0n th\u1ec3 ng\u01b0\u1eddi xem tr\u00ean s\u00e2n v\u1eadn \u0111\u1ed9ng \u0111\u00e3 v\u1ed7 tay hoan h\u00f4 cu\u1ed9c bi\u1ec3u di\u1ec5n \u0111\u1eb7c s\u1eafc \u1ea5y, b\u1ea7u kh\u00f4ng kh\u00ed bu\u1ed5i l\u1ec5 khai m\u1ea1c trong ch\u1ed1c l\u00e1t cu\u1ed3ng nhi\u1ec7t h\u1eb3n l\u00ean\u2026<\/p>\n\n\n\n
L\u1ebd n\u00e0o l\u1ea1i c\u00f3 ng\u01b0\u1eddi bi\u1ebft bay?<\/p>\n\n\n\n
\u0110\u01b0\u01a1ng nhi\u00ean l\u00e0 kh\u00f4ng. \u0110i\u1ec1u b\u00ed m\u1eadt m\u00e0 “ng\u01b0\u1eddi bay” bi\u1ec3u di\u1ec5n th\u1ef1c ra l\u00e0 ho\u00e0n to\u00e0n n\u1eb1m trong c\u00e1c t\u00fai \u0111eo \u1edf sau l\u01b0ng. C\u00e1c t\u00fai n\u00e0y r\u1ea5t gi\u1ed1ng th\u00f9ng phun thu\u1ed1c tr\u1eeb s\u00e2u c\u1ee7a ng\u01b0\u1eddi n\u00f4ng d\u00e2n, nh\u01b0ng b\u00ean trong l\u1ea1i ch\u1ee9a oxy th\u1ec3 l\u1ecfng v\u1edbi n\u1ed3ng \u0111\u1ed9 90%. Ng\u01b0\u1eddi bay \u0111eo \u1edf sau l\u01b0ng, sau khi b\u1eadt c\u00f4ng t\u1eafc phun, oxy gi\u00e0 phun ra do \u0111\u01b0\u1ee3c t\u0103ng \u00e1p, khi qua l\u01b0\u1edbi l\u1ecdc c\u00f3 h\u00e0m l\u01b0\u1ee3ng b\u1ea1c \u1edf tr\u00ean v\u00f2i phun, oxy b\u1ecb ph\u00e2n gi\u1ea3i th\u00e0nh h\u01a1i n\u01b0\u1edbc v\u00e0 kh\u00ed oxy, h\u00ecnh th\u00e0nh m\u1ed9t lu\u1ed3ng kh\u00ed phun cao t\u1ed1c v\u00e0 phun ra theo v\u00f2i phun \u1edf ph\u00eda d\u01b0\u1edbi c\u00e1c t\u00fai, t\u1ea1o n\u00ean m\u1ed9t s\u1ee9c \u0111\u1ea9y c\u1ef1c l\u1edbn, \u0111\u1ea9y “ng\u01b0\u1eddi bay” r\u1eddi kh\u1ecfi m\u1eb7t \u0111\u1ea5t, bay l\u00ean kh\u00f4ng trung. Khi bay l\u00ean gi\u1eefa l\u01b0ng tr\u1eddi, ng\u01b0\u1eddi bay c\u00f3 th\u1ec3 d\u00f9ng c\u1ea7n \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng tay \u0111\u1ec3 kh\u1ed1ng ch\u1ebf lu\u1ed3ng kh\u00ed phun ra \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh ph\u01b0\u01a1ng h\u01b0\u1edbng bay, nh\u00ecn l\u00ean th\u1eadt gi\u1ed1ng nh\u01b0 anh ta c\u00f3 th\u1ec3 t\u1ef1 do bay cao bay th\u1ea5p, sang ph\u1ea3i sang tr\u00e1i v\u1eady.<\/p>\n\n\n\n
C\u00e1i t\u00fai bay \u0111eo \u1edf sau l\u01b0ng l\u00e0 m\u1ed9t \u0111\u1ed9 \u0111\u1ed3 bay c\u00e1 nh\u00e2n r\u1ea5t nh\u1eb9, r\u1ea5t nh\u1ecf, nh\u01b0ng gi\u00e1 th\u00e0nh l\u1ea1i r\u1ea5t \u0111\u1eaft, v\u00ed d\u1ee5 nh\u01b0 ch\u1ea5t oxy gi\u00e0 n\u1ed3ng \u0111\u1ed9 cao r\u1ea5t d\u1ec5 ph\u00e2n gi\u1ea3i khi g\u1eb7p \u00e1nh s\u00e1ng v\u00e0 nhi\u1ec7t. Ngo\u00e0i ra k\u1ef9 thu\u1eadt \u0111i\u1ec1u khi\u1ec3n b\u1ed9 \u0111\u1ed3 bay n\u00e0y c\u0169ng r\u1ea5t ph\u1ee9c t\u1ea1p, ph\u1ea3i th\u1ef1c hi\u1ec7n th\u00e0nh th\u1ea1o bay an to\u00e0n, ng\u01b0\u1eddi bay ph\u1ea3i luy\u1ec7n t\u1eadp k\u1ef9 thu\u1eadt v\u00e0 th\u1ef1c h\u00e0nh bay nhi\u1ec1u l\u1ea7n, do v\u1eady chi ph\u00ed kh\u00e1 cao. V\u00ec th\u1ebf, t\u00fai bay \u0111eo sau l\u01b0ng c\u00f2n ph\u1ea3i c\u1ea3i ti\u1ebfn v\u00e0 ho\u00e0n thi\u1ec7n v\u1ec1 k\u1ef9 thu\u1eadt v\u00e0 thi\u1ebft b\u1ecb, m\u1edbi c\u00f3 th\u1ec3 th\u1ef1c s\u1ef1 tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 bay c\u00e1 nh\u00e2n th\u1ef1c d\u1ee5ng.<\/p>\n\n\n\n
Ngo\u00e0i t\u00fai bay ra, hi\u1ec7n nay ph\u01b0\u01a1ng ti\u1ec7n bay c\u00e1 nh\u00e2n t\u01b0\u01a1ng \u0111\u1ed1i hi\u1ec7n th\u1ef1c l\u00e0 lo\u1ea1i m\u00e1y bay si\u00eau nh\u1eb9 c\u00f3 h\u00ecnh d\u1ea1ng gi\u1ed1ng nh\u01b0 m\u00e1y bay th\u01b0\u1eddng. C\u00e1c m\u00e1y bay n\u00e0y c\u00f3 k\u1ebft c\u1ea5u r\u1ea5t \u0111\u01a1n gi\u1ea3n, d\u00f9ng \u0111\u1ed9ng c\u01a1 lo\u1ea1i nh\u1ecf, kh\u1ed1i l\u01b0\u1ee3ng ch\u1ec9 h\u01a1n 100 g. Tr\u01b0\u1edbc m\u1eaft, lo\u1ea1i m\u00e1y bay d\u1ec5 l\u00e1i n\u00e0y gi\u00e1 c\u1ea3 t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p, ch\u1ee7 y\u1ebfu d\u00f9ng cho th\u1ec3 thao v\u00e0 gi\u1ea3i tr\u00ed c\u00e1 nh\u00e2n.<\/p>\n\n\n\n
Do hi\u1ec7n t\u01b0\u1ee3ng giao th\u00f4ng ch\u1eadt ch\u1ed9i \u1edf th\u00e0nh ph\u1ed1 v\u1eabn c\u00f2n k\u00e9o d\u00e0i m\u1ed9t th\u1eddi gian kh\u00e1 l\u00e2u, n\u00ean b\u1ed9 \u0111\u1ed3 bay c\u00e1 nh\u00e2n s\u1ebd r\u1ea5t nhanh ch\u00f3ng tr\u1edf th\u00e0nh m\u1ed9t \u0111\u1ec1 t\u00e0i h\u1ea5p d\u1eabn, v\u00e0 ph\u00e1t tri\u1ec3n th\u00e0nh m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n giao th\u00f4ng c\u00e1 nh\u00e2n ki\u1ec3u m\u1edbi nhanh g\u1ecdn, ti\u1ec7n l\u1ee3i.<\/p>\n\n\n\n
T\u1eeb kh\u00f3a: B\u1ed9 \u0111\u1ed3 bay; T\u00fai bay; M\u00e1y bay si\u00eau nh\u1eb9.<\/p>\n","protected":false},"excerpt":{"rendered":"
N\u0103m 1984, t\u1ea1i l\u1ec5 khai m\u1ea1c Th\u1ebf v\u1eadn h\u1ed9i \u00d4lympic l\u1ea7n th\u1ee9 23 c\u1eed h\u00e0nh \u1edf Los Angeles n\u01b0\u1edbc M\u1ef9, tr\u00ean b\u1ea7u tr\u1eddi s\u00e2n v\u1eadn \u0111\u1ed9ng r\u1ed9ng l\u1edbn, c\u00f3 m\u1ed9t “ng\u01b0\u1eddi bay” t\u1eeb tr\u00ean cao bay t\u1edbi sau l\u01b0ng k\u00e9o theo m\u1ed9t lu\u1ed3ng kh\u00f3i c\u00f3 m\u00e0u s\u1eafc. Anh ta bay m\u1ed9t v\u00f2ng chung quanh s\u00e2n […]<\/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":[15,16],"tags":[],"class_list":["post-8955","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-ky-thuat"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8955","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=8955"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8955\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8955"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8955"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8955"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}