{"id":14703,"date":"2021-11-27T15:44:02","date_gmt":"2021-11-27T08:44:02","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=14703"},"modified":"2021-11-27T15:44:03","modified_gmt":"2021-11-27T08:44:03","slug":"111-thoi-thuy-tinh-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/111-thoi-thuy-tinh-nhu-the-nao\/","title":{"rendered":"111 Th\u1ed5i th\u1ee7y tinh nh\u01b0 th\u1ebf n\u00e0o?"},"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 5 &#8211; Arkady Leokum \u201cTh\u1ed5i\u201d th\u1ee7y tinh l\u00e0 m\u1ed9t <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">k\u1ef9 n\u0103ng<\/a> c\u00f3 t\u1eeb r\u1ea5t x\u01b0a. Nh\u01b0ng khi ng\u01b0\u1eddi ta ch\u1ebf ra \u0111\u01b0\u1ee3c nh\u1eefng m\u00e1y \u201cth\u1ed5i\u201d th\u00ec c\u00e1i ngh\u1ec1 th\u1ed5i th\u1ee7y tinh c\u1ee7a con ng\u01b0\u1eddi c\u00e0ng l\u00fac c\u00e0ng \u00edt ng\u01b0\u1eddi l\u00e0m. L\u00fac c\u00f2n trong t\u00ecnh tr\u1ea1ng n\u00f3ng ch\u1ea3y, th\u1ee7y tinh \u0111\u01b0\u1ee3c \u201cgia c\u00f4ng\u201d theo nhi\u1ec1u c\u00e1ch nh\u01b0 th\u1ed5i, \u00e9p, k\u00e9o, cu\u1ed1n\u2026 Nh\u01b0ng ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng &#8211; v\u00e0 ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong h\u00e0ng m\u1ea5y tr\u0103m n\u0103m &#8211; v\u1eabn l\u00e0 \u201cth\u1ed5i\u201d th\u1ee7y tinh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1eddi th\u1ee3 \u201cqu\u1ec7n\u201d th\u1ee7y tinh n\u00f3ng ch\u1ea3y v\u00e0o \u0111\u1ea7u m\u1ed9t c\u00e1i \u1ed1ng (b\u1eb1ng s\u1eaft?) d\u00e0i r\u1ed3i k\u00ea mi\u1ec7ng v\u00e0o \u0111\u1ea7u kia c\u1ee7a \u1ed1ng v\u00e0 th\u1ed5i. B\u1eb1ng c\u00e1ch n\u00e0y, \u1edf \u0111\u1ea7u kia, th\u1ee7y tinh ch\u1ea3y n\u1edf ph\u00ecnh ra nh\u01b0 c\u00e1i bong b\u00f3ng x\u00e0 ph\u00f2ng. B\u1eb1ng x\u1ea3o n\u0103ng, trong l\u00fac th\u1ed5i, ng\u01b0\u1eddi th\u1ee3 ph\u1ea3i t\u1ea1o h\u00ecnh v\u00e0 l\u00e0m sao cho c\u00f3 \u0111\u1ed9 d\u00e0y th\u00edch h\u1ee3p. \u0111ang khi th\u1ed5i, th\u1ee7y tinh b\u1ecb ngu\u1ed9i, ng\u01b0\u1eddi th\u1ee3 c\u00f3 th\u1ec3 \u0111em v\u00e0o l\u00f2 h\u01a1 l\u1ea1i cho n\u00f3ng l\u00ean v\u00e0 l\u00e0m n\u1ed1t c\u00f4ng \u0111o\u1ea1n cho \u0111\u1ebfn khi ho\u00e0n th\u00e0nh m\u00f3n \u0111\u1ed3 mong mu\u1ed1n. Ch\u1ec9 v\u1eady th\u00f4i, ng\u01b0\u1eddi th\u1ee3 th\u1ee7y tinh \u0111\u00e3 ch\u1ebf t\u1ea1o ra nhi\u1ec1u \u0111\u1ed3 v\u1eadt. Ki\u1ebfng c\u0169ng \u0111\u01b0\u1ee3c t\u1ea1o ra nh\u01b0 v\u1eady. C\u00f3 \u0111i\u1ec1u l\u00e0 l\u00e0 ki\u1ebfng th\u01b0\u1eddng c\u0169ng \u0111\u01b0\u1ee3c th\u1ed5i t\u1eeb \u1ed1ng \u0111\u1ef1ng th\u1ee7y tinh n\u00f3ng ch\u1ea3y r\u1ed3i l\u00e0m cho b\u1eb1ng ph\u1eb3ng ra th\u00e0nh ki\u1ebfng t\u1ea5m. K\u00edch c\u1ee1 c\u1ee7a t\u1ea5m ki\u1ebfng ch\u1ebf t\u1ea1o theo c\u00e1ch n\u00e0y t\u00f9y thu\u1ed9c v\u00e0o c\u00e1i ph\u1ed5i c\u1ee7a ng\u01b0\u1eddi th\u1ee3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u00e0y nay ph\u01b0\u01a1ng ph\u00e1p th\u1ed5i th\u1ee7y tinh ch\u1ec9 c\u00f2n \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ch\u1ebf t\u1ea1o c\u00e1c d\u1ee5ng c\u1ee5 khoa h\u1ecdc \u0111\u1eb7c bi\u1ec7t v\u00e0 \u0111\u1eaft ti\u1ec1n, c\u0169ng nh\u01b0 nh\u1eefng v\u1eadt d\u1ee5ng c\u00f3 t\u00ednh ngh\u1ec7 thu\u1eadt. Ph\u01b0\u01a1ng ph\u00e1p th\u1ed5i th\u1ee7y tinh \u201cc\u1ed5 truy\u1ec1n\u201d c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u201ctay kh\u00f4ng\u201d (freehand) ngh\u0129a l\u00e0 kh\u00f4ng c\u00f3 m\u00e1y m\u00f3c d\u1ee5ng c\u1ee5 g\u00ec nhi\u1ec1u. Tuy nhi\u00ean ng\u00e0y nay nhu c\u1ea7u v\u1eadt d\u1ee5ng b\u1eb1ng th\u1ee7y tinh qu\u00e1 l\u1edbn \u0111\u1ebfn n\u1ed7i ph\u01b0\u01a1ng ph\u00e1p c\u1ed5 truy\u1ec1n kh\u00f4ng th\u1ec3 \u0111\u00e1p \u1ee9ng n\u1ed5i. Do \u0111\u00f3 ng\u01b0\u1eddi ta ph\u1ea3i m\u1ea7y m\u00f2 t\u00ecm c\u00e1ch ch\u1ebf ra c\u00e1i m\u00e1y th\u1ed5i th\u1ee7y tinh. V\u00e0 v\u00e0o n\u0103m 1930, c\u00e1i m\u00e1y th\u1ed5i th\u1ee7y tinh t\u1ef1 \u0111\u1ed9ng \u0111\u00e3 \u0111\u01b0\u1ee3c s\u00e1ng ch\u1ebf. M\u00e1y n\u00e0y d\u00f9ng s\u1ef1 \u201cch\u00e2n kh\u00f4ng\u201d \u0111\u1ec3 h\u00fat kh\u1ed1i l\u01b0\u1ee3ng th\u1ee7y tinh n\u00f3ng ch\u1ea3y v\u1eeba \u0111\u1ee7 \u0111\u1ec3 ch\u1ebf t\u1ea1o v\u1eadt d\u1ee5ng mong mu\u1ed1n. M\u1ed9t c\u00e1i chai ch\u1eb3ng h\u1ea1n, tho\u1ea1t \u0111\u1ea7u l\u00e0 c\u00e1i c\u1ed5 chai \u0111\u01b0\u1ee3c \u201cl\u00e0m khu\u00f4n\u201d, sau \u0111\u00f3 cho th\u1ed5i kh\u00f4ng kh\u00ed v\u00e0o, th\u1ed5i ti\u1ebfp cho \u0111\u1ebfn l\u00fac th\u00e0nh c\u00e1i chai. K\u1ebf \u0111\u00f3, c\u00e1i chai \u0111\u01b0\u1ee3c \u0111em \u201c\u1ee7\u201d, ngh\u0129a l\u00e0m l\u00e0m cho n\u00f3 ngu\u1ed9i t\u1eeb t\u1eeb \u0111\u1ec3 th\u1ee7y tinh \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u00ecnh v\u00e0 c\u1ee9ng ra. M\u1ed9t c\u00e1i m\u00e1y nh\u01b0 v\u1eady c\u00f3 c\u00f4ng su\u1ea5t trong m\u1ed9t gi\u1edd b\u1eb1ng s\u00e1u ng\u01b0\u1eddi th\u1ee3 l\u00e0m c\u1ea3 ng\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e1y th\u1ed5i th\u1ee7y tinh ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn \u0111\u1ec3 tr\u1edf th\u00e0nh ho\u00e0n to\u00e0n t\u1ef1 \u0111\u1ed9ng, \u0111\u1ec3 th\u1ed5i nhi\u1ec1u nhi\u1ec1u v\u1eadt d\u1ee5ng &#8211; nh\u01b0 c\u00e1i b\u00f3ng \u0111\u00e8n ch\u1eb3ng h\u1ea1n &#8211; theo nhi\u1ec1u ki\u1ec3u d\u00e1ng v\u00e0 k\u00edch c\u1ee1 mong mu\u1ed1n. Ng\u00e0y nay h\u1ea7u h\u1ebft c\u00e1c \u0111\u1ed3 d\u00f9ng th\u00f4ng th\u01b0\u1eddng b\u1eb1ng th\u1ee7y tinh \u0111\u01b0\u1ee3c d\u00f9ng tr\u00ean th\u1ebf gi\u1edbi nh\u01b0 chai, l\u1ecd, b\u00ecnh b\u00f4ng, ly, ch\u00e9n\u2026 \u0111\u1ec1u \u0111\u01b0\u1ee3c \u201cth\u1ed5i\u201d b\u1eb1ng m\u00e1y.<\/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 5 &#8211; Arkady Leokum \u201cTh\u1ed5i\u201d th\u1ee7y tinh l\u00e0 m\u1ed9t k\u1ef9 n\u0103ng c\u00f3 t\u1eeb r\u1ea5t x\u01b0a. Nh\u01b0ng khi ng\u01b0\u1eddi ta ch\u1ebf ra \u0111\u01b0\u1ee3c nh\u1eefng m\u00e1y \u201cth\u1ed5i\u201d th\u00ec c\u00e1i ngh\u1ec1 th\u1ed5i th\u1ee7y tinh c\u1ee7a con ng\u01b0\u1eddi c\u00e0ng l\u00fac c\u00e0ng \u00edt ng\u01b0\u1eddi l\u00e0m. L\u00fac c\u00f2n trong [&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-14703","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\/14703","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=14703"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14703\/revisions"}],"predecessor-version":[{"id":14704,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14703\/revisions\/14704"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14703"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}