{"id":5772,"date":"2016-08-18T18:16:05","date_gmt":"2016-08-18T11:16:05","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=5772"},"modified":"2017-10-03T09:43:58","modified_gmt":"2017-10-03T02:43:58","slug":"tao-ra-lo-den-vu-tru-trong-phong-thi-nghiem-nham-xac-minh-gia-thuyet-stephen-hawking-tu-40-nam-truoc","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/tao-ra-lo-den-vu-tru-trong-phong-thi-nghiem-nham-xac-minh-gia-thuyet-stephen-hawking-tu-40-nam-truoc\/","title":{"rendered":"T\u1ea1o ra l\u1ed7 \u0111en v\u0169 tr\u1ee5 trong ph\u00f2ng th\u00ed nghi\u1ec7m nh\u1eb1m x\u00e1c minh gi\u1ea3 thuy\u1ebft Stephen Hawking t\u1eeb 40 n\u0103m tr\u01b0\u1edbc"},"content":{"rendered":"<p><strong>C\u00f2n nh\u1edb h\u1ed3i n\u0103m 1974, Stephen Hawking \u0111\u00e3 \u0111\u01b0a ra gi\u1ea3 thuy\u1ebft r\u1eb1ng c\u00e1c b\u1ee9c x\u1ea1 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t ra t\u1eeb l\u1ed7 \u0111en v\u0169 tr\u1ee5 (g\u1ecdi l\u00e0 l\u00e0 b\u1ee9c x\u1ea1 Hawking) v\u00e0 sau 40 n\u0103m, v\u00e0o \u0111\u1ea7u tu\u1ea7n n\u00e0y, c\u00e1c nh\u00e0 khoa h\u1ecdc tuy\u00ean b\u1ed1 r\u1eb1ng h\u1ecd \u0111\u00e3 l\u1ea7n \u0111\u1ea7u ti\u00ean quan s\u00e1t \u0111\u01b0\u1ee3c &#8220;b\u1ee9c x\u1ea1 Hawking&#8221; b\u1eb1ng c\u00e1ch t\u1ea1o ra m\u1ed9t l\u1ed7 \u0111en trong ph\u00f2ng th\u00ed nghi\u1ec7m. L\u00e0m th\u1ebf n\u00e0o h\u1ecd c\u00f3 th\u1ec3 t\u1ea1o n\u00ean m\u1ed9t &#8220;con qu\u00e1i v\u1eadt&#8221; c\u1ee7a v\u0169 tr\u1ee5 ngay trong ph\u00f2ng th\u00ed nghi\u1ec7m khoa h\u1ecdc nh\u1ecf b\u00e9 d\u01b0\u1edbi Tr\u00e1i \u0110\u1ea5t? Li\u1ec7u n\u00f3 c\u00f3 nu\u1ed1t ch\u1eedng Tr\u00e1i \u0110\u1ea5t lu\u00f4n kh\u00f4ng?<\/strong><\/p>\n<p>Th\u1ef1c ra c\u00e1i m\u00e0 nh\u00f3m c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u d\u1eabn \u0111\u1ea7u b\u1edfi gi\u00e1o s\u01b0 Jeff Steinhauer t\u1ea1i Vi\u1ec7n c\u00f4ng ngh\u1ec7 Israel t\u1ea1o ra \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 l\u1ed7 \u0111en sonic. \u0110\u00e2y l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng khi m\u1ed9t \u00e2m t\u1eed ( phonon, c\u00e1c h\u1ea1t \u00e2m thanh) kh\u00f4ng th\u1ec3 tho\u00e1t ra kh\u1ecfi m\u1ed9t d\u00f2ng ch\u1ea3y v\u1edbi t\u1ed1c \u0111\u1ed9 nhanh h\u01a1n v\u1eadn t\u1ed1c \u00e2m thanh t\u1ea1i n\u01a1i \u0111\u00f3. Nguy\u00ean nh\u00e2n c\u00f3 t\u00ean g\u1ecdi l\u1ed7 \u0111en sonic l\u00e0 do c\u00e1ch ch\u00fang b\u1eaft gi\u1eef c\u00e1c \u00e2m t\u1eed t\u01b0\u01a1ng t\u1ef1 nh\u01b0 \u00e1nh s\u00e1ng b\u1ecb h\u1ea5p d\u1eabn c\u1ee7a l\u1ed7 \u0111en &#8220;h\u00fat&#8221; v\u00e0o v\u1eady. \u0110\u01b0\u1ee3c bi\u1ebft t\u1eeb l\u00e2u l\u1ed7 \u0111en sonic l\u00e0 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u h\u1ea5p d\u1eabn c\u1ee7a c\u00e1c nh\u00e0 khoa h\u1ecdc b\u1edfi ch\u00fang c\u00f3 nhi\u1ec1u \u0111\u1eb7c t\u00ednh t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi l\u1ed7 \u0111en thi\u00ean v\u0103n v\u00e0 m\u1ed9t ph\u1ea7n, n\u00f3 ph\u00e1t ra m\u1ed9t phi\u00ean b\u1ea3n \u00e2m t\u1eed c\u1ee7a b\u1ee9c x\u1ea1 Hawking.<\/p>\n<p>Sau 7 n\u0103m nghi\u00ean c\u1ee9u t\u00ecm c\u00e1ch t\u1ed1i \u01b0u h\u00f3a l\u1ed7 \u0111en sonic trong ph\u00f2ng th\u00ed nghi\u1ec7m, Steinhauer tuy\u00ean b\u1ed1 \u0111\u00e3 c\u00f3 \u0111\u1ee7 kh\u1ea3 n\u0103ng m\u00f4 ph\u1ecfng l\u1ed7 \u0111en v\u0169 tr\u1ee5 th\u1eadt s\u1ef1 nh\u1eb1m t\u1ea1o ra m\u1ed9t ch\u00e2n tr\u1eddi s\u1ef1 ki\u1ec7n th\u1eadt s\u1ef1 (ch\u00e2n tr\u1eddi s\u1ef1 ki\u1ec7n &#8211; bi\u00ean ph\u00eda trong c\u1ee7a kh\u00f4ng th\u1eddi gian, n\u01a1i m\u1ecdi lo\u1ea1i v\u1eadt ch\u1ea5t bao g\u1ed3m c\u1ea3 s\u00f3ng \u0111i\u1ec7n t\u1eeb \u0111\u1ec1u kh\u00f4ng th\u1ec3 v\u01b0\u1ee3t ra ngo\u00e0i ng\u01b0\u1eddi quan s\u00e1t.) Qua \u0111\u00f3, Steinhauer c\u00f3 th\u1ec3 quan s\u00e1t \u0111\u01b0\u1ee3c bi\u1ec3u hi\u1ec7n c\u1ee7a c\u00e1c \u00e2m t\u1eed t\u1ea1i ch\u00e2n tr\u1eddi s\u1ef1 ki\u1ec7n c\u1ee7a l\u1ed7 \u0111en v\u00e0 th\u1eadt s\u1ef1, ch\u00fang c\u01b0 x\u1eed gi\u1ed1ng nh\u01b0 nh\u1eefng g\u00ec m\u00e0 Einstein \u0111\u00e3 gi\u1ea3 thuy\u1ebft h\u1ed3i x\u01b0a.<\/p>\n<p>B\u1ee9c x\u1ea1 Hawking ch\u1ec9 ra r\u1eb1ng m\u1ed9t c\u1eb7p photon s\u1ebd b\u1ecb t\u00e1ch ra t\u1ea1i r\u00eca c\u1ee7a l\u1ed7 \u0111en v\u0169 tr\u1ee5. C\u00e1c photon \u00e2m s\u1ebd b\u1ecb nu\u1ed1t ch\u1eedng c\u00f2n c\u00e1c photon d\u01b0\u01a1ng s\u1ebd \u0111\u01b0\u1ee3c ph\u00e1t x\u1ea1 ra b\u00ean ngo\u00e0i. \u0110i\u1ec1u n\u00e0y s\u1ebd d\u1eabn t\u1edbi h\u1ec7 qu\u1ea3 l\u00e0 n\u1ebfu m\u1ed9t l\u1ed7 \u0111en kh\u00f4ng th\u1ec3 t\u00ecm \u0111\u01b0\u1ee3c ngu\u1ed3n &#8220;th\u1ee9c \u0103n&#8221; \u0111\u1ec3 t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng, cu\u1ed1i c\u00f9ng n\u00f3 c\u00f3 th\u1ec3 s\u1ebd t\u1ef1 co l\u1ea1i v\u00e0 ch\u1ebft \u0111i. V\u00e0 l\u1ea7n n\u00e0y k\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m c\u1ee7a Steinhauer \u0111\u00e3 ch\u1ec9 ra b\u1eb1ng ch\u1ee9ng m\u1ea1nh m\u1ebd v\u1ec1 t\u00ednh \u0111\u00fang \u0111\u1eafn c\u1ee7a gi\u1ea3 thuy\u1ebft b\u1ee9c x\u1ea1 Hawking. Tuy nhi\u00ean, c\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f2n ph\u1ea3i ti\u1ebfp t\u1ee5c nghi\u00ean c\u1ee9u t\u00ecm c\u00e1ch \u0111o l\u01b0\u1eddng b\u1ee9c x\u1ea1 Hawing &#8211; \u0111i\u1ec1u x\u01b0a gi\u1edd v\u1eabn ch\u01b0a l\u00e0m \u0111\u01b0\u1ee3c &#8211; nh\u1eb1m \u0111\u01b0a ra k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng v\u1ec1 gi\u1ea3 thuy\u1ebft c\u00e1ch \u0111\u00e2y 40 n\u0103m c\u1ee7a Hawking.<\/p>\n<p style=\"text-align: right;\"><strong><em>Tham kh\u1ea3o Wiki, Wired\u200b<\/em><\/strong><\/p>\n<p style=\"text-align: right;\"><em>Ngu\u1ed3n tinhte.vn<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00f2n nh\u1edb h\u1ed3i n\u0103m 1974, Stephen Hawking \u0111\u00e3 \u0111\u01b0a ra gi\u1ea3 thuy\u1ebft r\u1eb1ng c\u00e1c b\u1ee9c x\u1ea1 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t ra t\u1eeb l\u1ed7 \u0111en v\u0169 tr\u1ee5 (g\u1ecdi l\u00e0 l\u00e0 b\u1ee9c x\u1ea1 Hawking) v\u00e0 sau 40 n\u0103m, v\u00e0o \u0111\u1ea7u tu\u1ea7n n\u00e0y, c\u00e1c nh\u00e0 khoa h\u1ecdc tuy\u00ean b\u1ed1 r\u1eb1ng h\u1ecd \u0111\u00e3 l\u1ea7n \u0111\u1ea7u ti\u00ean quan s\u00e1t \u0111\u01b0\u1ee3c [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":6216,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-5772","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5772","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=5772"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5772\/revisions"}],"predecessor-version":[{"id":6396,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5772\/revisions\/6396"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/6216"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=5772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=5772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=5772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}