T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 5 – Arkady Leokum<\/p>\n\n\n\n
R\u1ea5t nhi\u1ec1u d\u1ee5ng c\u1ee5 c\u1ee7a con ng\u01b0\u1eddi \u0111\u01b0\u1ee3c m\u00f4 ph\u1ecfng theo c\u1ea5u tr\u00fac c\u1ee7a c\u01a1 ph\u1eadn con ng\u01b0\u1eddi. \u0111i\u1ec3n h\u00ecnh nh\u1ea5t cho lo\u1ea1i n\u00e0y l\u00e0 c\u00e1i m\u00e1y ch\u1ee5p h\u00ecnh, m\u1ed9t m\u00f4 ph\u1ecfng c\u1ee7a c\u1ea5u tr\u00fac con m\u1eaft. Khi m\u1edf m\u1eaft nh\u00ecn t\u1ee9c l\u00e0 m\u1eaft ta li\u00ean ti\u1ebfp \u201cch\u1ee5p\u201d h\u00ecnh c\u00e1c s\u1ef1 v\u1eadt ta nh\u00ecn. Th\u1ea5u k\u00ednh trong m\u1eaft ta c\u0169ng c\u00f3 vai tr\u00f2 nh\u01b0 th\u1ea5u k\u00ednh trong m\u00e1y \u1ea3nh.<\/p>\n\n\n\n
Trong m\u1eaft, \u00e1nh s\u00e1ng t\u00e1c \u0111\u1ed9ng l\u00ean c\u00e1c t\u1ebf b\u00e0o v\u00f5ng m\u00f4. Trong m\u00e1y \u1ea3nh, \u00e1nh s\u00e1ng c\u0169ng t\u00e1c \u0111\u1ed9ng l\u00ean m\u1ed9t h\u00f3a ch\u1ea5t \u0111\u1eb7c bi\u1ec7t ph\u1ebft tr\u00ean phim c\u00f3 vai tr\u00f2 nh\u01b0 c\u00e1c t\u1ebf b\u00e0o v\u00f5ng m\u00f4. N\u1ebfu kh\u00f4ng c\u00f3 \u00e1nh s\u00e1ng t\u00e1c \u0111\u1ed9ng l\u00ean h\u00f3a ch\u1ea5t \u0111\u1eb7c bi\u1ec7t t\u00ean phim th\u00ec phim s\u1ebd kh\u00f4ng c\u00f3 h\u00ecnh.<\/p>\n\n\n\n
V\u1eady, h\u00f3a ch\u1ea5t \u1ea5y l\u00e0 g\u00ec v\u00e0 \u00e1nh s\u00e1ng t\u01b0\u01a1ng \u0111\u1ed1i nh\u01b0 th\u1ebf n\u00e0o? H\u00f3a ch\u1ea5t \u1ea5y l\u00e0 nitrat b\u1ea1c. \u00c1nh s\u00e1ng l\u00e0m cho nitrat b\u1ea1c h\u00f3a \u0111en ra. V\u1ea5n \u0111\u1ec1 th\u1ee9 nh\u1ea5t ph\u1ea3i gi\u1ea3i quy\u1ebft l\u00e0 l\u00e0m sao h\u1ed9i t\u1ee5 \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng \u0111\u1ec3 cho n\u00f3 t\u00e1c \u0111\u1ed9ng l\u00ean nitrat b\u1ea1c tr\u00ean phim. Vi\u1ec7c n\u00e0y do th\u1ea5u k\u00ednh lo li\u1ec7u gi\u1ea3i quy\u1ebft. Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 \u00e1nh s\u00e1ng v\u00e0 \u0111\u01b0a n\u00f3 v\u00e0o phim. Ta c\u00f3 th\u1ec3 h\u00ecnh dung th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 nh\u01b0 m\u1ed9t c\u00e1i ph\u1ec5u ph\u00eda tr\u00ean loe ra ph\u00eda d\u01b0\u1edbi th\u00f3t l\u1ea1i l\u00e0m cho n\u01b0\u1edbc ch\u1ea3y gom qua m\u1ed9t l\u1ed7. Khi \u0111\u00f3ng m\u1edf n\u1eafp th\u1ea5u k\u00ednh – m\u1edf l\u1edbn hay nh\u1ecf, nhanh hay ch\u1eadm – \u00e1nh s\u00e1ng s\u1ebd \u00f9a qua th\u1ea5u k\u00ednh v\u00e0o t\u00e1c \u0111\u1ed9ng l\u00ean phim: ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc x\u1ea3y ra, nh\u1eefng h\u1ea1t li ti h\u00f3a ch\u1ea5t bi\u1ebfn \u0111\u1ed5i. L\u1ea5y phim ra \u0111em \u201ctr\u00e1ng\u201d t\u1ee9c l\u00e0 \u0111em x\u1eed l\u00fd v\u1edbi m\u1ed9t lo\u1ea1i ch\u1ea5t l\u1ecfng g\u1ecdi l\u00e0 thu\u1ed1c r\u1eeda. G\u1eb7p ch\u1ea5t l\u1ecfng n\u00e0y, m\u1ed9t l\u1ea7n n\u1eefa c\u00e1c h\u1ea1t li ti h\u00f3a ch\u1ea5t b\u1ecb bi\u1ebfn \u0111\u1ed5i b\u1edfi \u00e1nh s\u00e1ng l\u00fac tr\u01b0\u1edbc l\u1ea1i bi\u1ebfn th\u00e0nh \u0111en.<\/p>\n\n\n\n
C\u00e0ng nhi\u1ec1u \u00e1nh s\u00e1ng l\u1ecdt qua th\u1ea5u k\u00ednh, c\u00e0ng nhi\u1ec1u h\u1ea1t h\u00f3a ch\u1ea5t tr\u00ean phim t\u00e1c \u0111\u1ed9ng v\u00e0 sau \u0111\u00f3 b\u1ecb h\u00f3a \u0111en th\u00ec tr\u00ean phim c\u00e0ng \u0111en nhi\u1ec1u. T\u1ea5m phim n\u00e0y g\u1ecdi l\u00e0 \u201c\u00e2m b\u1ea3n\u201d v\u00ec h\u00ecnh c\u1ee7a n\u00f3 \u201c\u0111\u1ed1i ngh\u1ecbch\u201d v\u1edbi h\u00ecnh ta in ra. \u0111i\u1ec3m \u0111en tr\u00ean phim th\u00e0nh \u0111i\u1ec3m tr\u1eafng tr\u00ean t\u1ea5m \u1ea3nh v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n\n\n\n
Khi \u0111\u00e3 c\u00f3 \u201c\u00e2m b\u1ea3n\u201d th\u00ec b\u01b0\u1edbc k\u1ebf ti\u1ebfp l\u00e0 in \u201cd\u01b0\u01a1ng b\u1ea3n\u201d m\u00e0 ta g\u1ecdi n\u00f4m na l\u00e0 r\u1eeda h\u00ecnh. \u00c2m b\u1ea3n \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u00ean m\u1ed9t t\u1edd gi\u1ea5y c\u0169ng ph\u1ebft m\u1ed9t l\u1edbp m\u1ecfng h\u00f3a ch\u1ea5t, v\u00e0 h\u00f3a ch\u1ea5t n\u00e0y c\u0169ng b\u1ecb \u00e1nh s\u00e1ng t\u00e1c \u0111\u1ed9ng, \u00e1nh s\u00e1ng xuy\u00ean qua \u201c\u00e2m b\u1ea3n\u201d t\u00e1c \u0111\u1ed9ng l\u00ean gi\u1ea5y \u1ea3nh t\u1ee9c l\u00e0 \u201cd\u01b0\u01a1ng b\u1ea3n\u201d. L\u00fac n\u00e0y, l\u1ea1i \u0111\u1ea3o ng\u01b0\u1ee3c qu\u00e1 tr\u00ecnh tr\u01b0\u1edbc, t\u1ee9c l\u00e0 nh\u1eefng \u0111i\u1ec3m \u0111en tr\u00ean \u201c\u00e2m b\u1ea3n\u201d c\u1ea3n nhi\u1ec1u \u00e1nh s\u00e1ng n\u00ean h\u00f3a ch\u1ea5t tr\u00ean \u201cd\u01b0\u01a1ng b\u1ea3n\u201d kh\u00f4ng b\u1ecb t\u00e1c \u0111\u1ed9ng nhi\u1ec1u. Ngh\u0129a l\u00e0 ta l\u1ea5y l\u1ea1i \u0111\u01b0\u1ee3c \u0111\u00fang h\u00ecnh d\u1ea1ng c\u1ee7a v\u1eadt ta mu\u1ed1n ch\u1ee5p. Gi\u1ea5y \u201cd\u01b0\u01a1ng b\u1ea3n\u201d t\u1ee9c l\u00e0 t\u1ea5m h\u00ecnh c\u0169ng ph\u1ea3i \u0111\u01b0\u1ee3c nh\u00fang v\u00e0o m\u1ed9t h\u00f3a ch\u1ea5t \u0111\u1eb7c bi\u1ec7t g\u1ecdi l\u00e0 \u201cthu\u1ed1c hi\u1ec7n \u1ea3nh\u201d \u0111\u1ec3 c\u00e1c ch\u1ea5t tr\u00ean gi\u1ea5y bi\u1ebfn \u0111\u1ed5i m\u1ed9t l\u1ea7n n\u1eefa l\u00e0 ta \u0111\u00e3 c\u00f3 t\u1ea5m h\u00ecnh gi\u1ed1ng nh\u01b0 v\u1eadt ta mu\u1ed1n ch\u1ee5p.<\/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 5 – Arkady Leokum R\u1ea5t nhi\u1ec1u d\u1ee5ng c\u1ee5 c\u1ee7a con ng\u01b0\u1eddi \u0111\u01b0\u1ee3c m\u00f4 ph\u1ecfng theo c\u1ea5u tr\u00fac c\u1ee7a c\u01a1 ph\u1eadn con ng\u01b0\u1eddi. \u0111i\u1ec3n h\u00ecnh nh\u1ea5t cho lo\u1ea1i n\u00e0y l\u00e0 c\u00e1i m\u00e1y ch\u1ee5p h\u00ecnh, m\u1ed9t m\u00f4 ph\u1ecfng c\u1ee7a c\u1ea5u tr\u00fac con m\u1eaft. Khi m\u1edf […]<\/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-14600","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\/14600","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=14600"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14600\/revisions"}],"predecessor-version":[{"id":14601,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14600\/revisions\/14601"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}