{"id":2126,"date":"2026-02-06T08:29:47","date_gmt":"2026-02-06T07:29:47","guid":{"rendered":"https:\/\/resoomer.com\/education\/on-tap-ngat-quang-on-dung-luc\/"},"modified":"2026-02-06T08:29:47","modified_gmt":"2026-02-06T07:29:47","slug":"on-tap-ngat-quang-on-dung-luc","status":"publish","type":"post","link":"https:\/\/resoomer.com\/education\/vi\/on-tap-ngat-quang-on-dung-luc\/","title":{"rendered":"\u00d4n t\u1eadp ng\u1eaft qu\u00e3ng: \u00f4n \u0111\u00fang l\u00fac"},"content":{"rendered":"

Hai sinh vi\u00ean chu\u1ea9n b\u1ecb cho c\u00f9ng m\u1ed9t k\u1ef3 thi. Ng\u01b0\u1eddi th\u1ee9 nh\u1ea5t d\u00e0nh c\u1ea3 \u0111\u00eam tr\u01b0\u1edbc \u0111\u1ec3 \u0111\u1ecdc l\u1ea1i m\u1ecdi th\u1ee9 m\u1ed9t m\u1ea1ch, h\u1ebft c\u1ed1c c\u00e0 ph\u00ea n\u00e0y \u0111\u1ebfn c\u1ed1c kh\u00e1c, v\u00e0 tr\u00ecnh di\u1ec7n h\u00f4m sau v\u1edbi c\u1ea3m gi\u00e1c v\u1eefng ch\u1eafc r\u1eb1ng m\u00ecnh \u0111\u00e3 n\u1eafm v\u1eefng ch\u1ee7 \u0111\u1ec1. Ng\u01b0\u1eddi th\u1ee9 hai \u0111\u00e3 \u00f4n c\u00f9ng n\u1ed9i dung \u1ea5y, nh\u01b0ng qua nh\u1eefng bu\u1ed5i ng\u1eafn r\u1ea3i r\u00e1c trong nhi\u1ec1u tu\u1ea7n. M\u1ed9t tu\u1ea7n sau k\u1ef3 thi, h\u00e3y h\u1ecfi c\u1ea3 hai h\u1ecd c\u00f2n nh\u1edb g\u00ec. Ng\u01b0\u1eddi th\u1ee9 nh\u1ea5t \u0111\u00e3 qu\u00ean g\u1ea7n h\u1ebft. Ng\u01b0\u1eddi th\u1ee9 hai v\u1eabn nh\u1edb nh\u1eefng \u0111i\u1ec1u c\u1ed1t y\u1ebfu. Kh\u00e1c bi\u1ec7t kh\u00f4ng n\u1eb1m \u1edf s\u1ef1 nghi\u00eam t\u00fac hay th\u1eddi gian b\u1ecf ra. N\u00f3 n\u1eb1m \u1edf m\u1ed9t y\u1ebfu t\u1ed1 duy nh\u1ea5t: th\u1eddi \u0111i\u1ec3m \u0111\u01b0\u1ee3c ch\u1ecdn \u0111\u1ec3 \u00f4n t\u1eadp.<\/p>\n

M\u1ed9t kh\u00e1m ph\u00e1 t\u1eeb n\u0103m 1885, v\u1eabn b\u1ecb \u00e1p d\u1ee5ng sai<\/h2>\n

T\u1eeb l\u00e2u ta \u0111\u00e3 bi\u1ebft b\u1ed9 n\u00e3o qu\u00ean r\u1ea5t nhanh, v\u00e0 theo c\u00e1ch c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c. Nh\u1eadn \u0111\u1ecbnh n\u00e0y kh\u00f4ng m\u1edbi, kh\u00f4ng c\u1ea7n b\u00e0n s\u00e2u \u1edf \u0111\u00e2y. \u0110i\u1ec1u th\u1eadt s\u1ef1 quan tr\u1ecdng l\u00e0 ng\u01b0\u1eddi ta \u0111\u00e3 l\u00e0m g\u00ec v\u1edbi n\u00f3, hay \u0111\u00fang h\u01a1n, \u0111i\u1ec1u m\u00e0 ng\u01b0\u1eddi ta v\u1eabn th\u01b0\u1eddng b\u1ecf qua: \u0111\u00f2n b\u1ea9y th\u1eadt s\u1ef1 ch\u01b0a bao gi\u1edd l\u00e0 ch\u1ed1ng l\u1ea1i s\u1ef1 qu\u00ean l\u00e3ng t\u1ef1 th\u00e2n. N\u00f3 lu\u00f4n l\u00e0 ch\u1ecdn \u0111\u00fang th\u1eddi \u0111i\u1ec3m \u0111\u1ec3 quay l\u1ea1i m\u1ed9t th\u00f4ng tin, ngay tr\u01b0\u1edbc khi n\u00f3 phai m\u1edd.<\/p>\n

\u00dd t\u01b0\u1edfng n\u00e0y c\u00f3 m\u1ed9t c\u00e1i t\u00ean ch\u00ednh x\u00e1c, hi\u1ec7u \u1ee9ng ng\u1eaft qu\u00e3ng<\/strong>. N\u00f3 \u0111\u00e3 tr\u1ea3i qua h\u01a1n m\u1ed9t th\u1ebf k\u1ef7 nghi\u00ean c\u1ee9u m\u00e0 ch\u01b0a t\u1eebng b\u1ecb b\u00e1c b\u1ecf nghi\u00eam t\u00fac. Th\u1ebf nh\u01b0ng tr\u00ean th\u1ef1c t\u1ebf, \u0111\u1ea1i \u0111a s\u1ed1 sinh vi\u00ean v\u1eabn ti\u1ebfp t\u1ee5c \u00f4n t\u1eadp theo c\u00e1ch ho\u00e0n to\u00e0n ng\u01b0\u1ee3c l\u1ea1i v\u1edbi khuy\u1ebfn ngh\u1ecb c\u1ee7a khoa h\u1ecdc.<\/p>\n

D\u1ed3n d\u1eadp hay ng\u1eaft qu\u00e3ng, m\u1ed9t kho\u1ea3ng c\u00e1ch hi\u1ec7u su\u1ea5t \u0111\u00e1ng k\u1ec3<\/h2>\n

C\u00f3 hai c\u00e1ch \u0111\u1ec3 l\u1eb7p l\u1ea1i m\u1ed9t th\u00f4ng tin. C\u00e1ch th\u1ee9 nh\u1ea5t l\u00e0 d\u1ed3n d\u1eadp c\u00e1c l\u1ea7n \u00f4n, n\u1ed1i ti\u1ebfp ch\u00fang s\u00e1t nhau trong m\u1ed9t kho\u1ea3ng th\u1eddi gian r\u1ea5t ng\u1eafn, nh\u01b0 trong m\u1ed9t \u0111\u00eam h\u1ecdc nh\u1ed3i nh\u00e9t. C\u00e1ch th\u1ee9 hai l\u00e0 gi\u00e3n c\u00e1ch ch\u00fang, \u0111\u1ec3 th\u1eddi gian tr\u00f4i qua gi\u1eefa m\u1ed7i l\u1ea7n \u00f4n.<\/p>\n

H\u1ecdc nh\u1ed3i nh\u00e9t t\u1ea1o ra m\u1ed9t \u1ea3o t\u01b0\u1edfng dai d\u1eb3ng v\u1ec1 s\u1ef1 l\u00e0m ch\u1ee7. Ngay l\u00fac \u0111\u00f3, m\u1ecdi th\u1ee9 c\u00f3 v\u1ebb quen thu\u1ed9c, tr\u00f4i ch\u1ea3y, \u0111\u00e3 l\u0129nh h\u1ed9i. Nh\u01b0ng c\u1ea3m gi\u00e1c \u1ea5y s\u1ee5p \u0111\u1ed5 ch\u1ec9 sau v\u00e0i ng\u00e0y. So v\u1edbi c\u00e1c l\u1ea7n \u00f4n d\u1ed3n d\u1eadp, \u00f4n t\u1eadp ng\u1eaft qu\u00e3ng c\u1ea3i thi\u1ec7n r\u00f5 r\u1ec7t kh\u1ea3 n\u0103ng ghi nh\u1edb l\u00e2u d\u00e0i<\/a><\/strong>, m\u1ed9t trong nh\u1eefng k\u1ebft qu\u1ea3 v\u1eefng ch\u1eafc nh\u1ea5t v\u00e0 \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i nhi\u1ec1u nh\u1ea5t trong to\u00e0n b\u1ed9 nghi\u00ean c\u1ee9u v\u1ec1 tr\u00ed nh\u1edb. \u0110\u00e2y kh\u00f4ng ph\u1ea3i m\u1ed9t s\u1eafc th\u00e1i th\u1ed1ng k\u00ea, \u0111\u00f3 l\u00e0 m\u1ed9t kho\u1ea3ng c\u00e1ch hi\u1ec7u su\u1ea5t \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng tu\u1ea7n, \u0111\u00f4i khi b\u1eb1ng th\u00e1ng tr\u00ed nh\u1edb th\u00eam v\u00e0o.<\/p>\n

V\u00ec sao ng\u1eaft qu\u00e3ng th\u1eadt s\u1ef1 hi\u1ec7u qu\u1ea3<\/h2>\n

C\u01a1 ch\u1ebf \u0111\u1eb1ng sau hi\u1ec7u \u1ee9ng n\u00e0y tinh t\u1ebf h\u01a1n v\u1ebb ngo\u00e0i c\u1ee7a n\u00f3. Kh\u00f4ng ph\u1ea3i b\u1ea3n th\u00e2n s\u1ef1 l\u1eb7p l\u1ea1i c\u1ee7ng c\u1ed1 tr\u00ed nh\u1edb, m\u00e0 l\u00e0 n\u1ed7 l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u00ecm l\u1ea1i th\u00f4ng tin. Khi \u0111\u1ec3 m\u1ed9t ch\u00fat th\u1eddi gian tr\u00f4i qua, m\u1ed9t ph\u1ea7n k\u00fd \u1ee9c b\u1eaft \u0111\u1ea7u phai nh\u1ea1t. Vi\u1ec7c t\u00ecm l\u1ea1i n\u00f3 khi \u0111\u00f3 \u0111\u00f2i h\u1ecfi m\u1ed9t n\u1ed7 l\u1ef1c truy h\u1ed3i<\/strong> th\u1eadt s\u1ef1, v\u00e0 ch\u00ednh n\u1ed7 l\u1ef1c \u1ea5y kh\u1eafc s\u00e2u h\u01a1n d\u1ea5u v\u1ebft k\u00fd \u1ee9c.<\/p>\n

Ng\u01b0\u1ee3c l\u1ea1i, \u00f4n l\u1ea1i m\u1ed9t th\u00f4ng tin v\u1eabn c\u00f2n m\u1edbi h\u1ea7u nh\u01b0 kh\u00f4ng t\u1ed1n g\u00ec v\u1edbi b\u1ed9 n\u00e3o. Ta t\u00ecm l\u1ea1i n\u00f3 d\u1ec5 d\u00e0ng, v\u00ec n\u00f3 ch\u01b0a c\u00f3 th\u1eddi gian suy y\u1ebfu. V\u00e0 \u0111i\u1ec1u g\u00ec kh\u00f4ng t\u1ed1n c\u00f4ng th\u00ec c\u0169ng g\u1ea7n nh\u01b0 ch\u1eb3ng d\u1ea1y \u0111\u01b0\u1ee3c g\u00ec. \u0110\u00f3 ch\u00ednh l\u00e0 to\u00e0n b\u1ed9 ngh\u1ecbch l\u00fd c\u1ee7a s\u1ef1 ng\u1eaft qu\u00e3ng: n\u00f3 hi\u1ec7u qu\u1ea3 v\u00ec l\u00e0m cho nhi\u1ec7m v\u1ee5 kh\u00f3 h\u01a1n m\u1ed9t ch\u00fat, kh\u00f4ng bao gi\u1edd v\u00ec n\u00f3 l\u00e0m cho nhi\u1ec7m v\u1ee5 d\u1ec5 h\u01a1n.<\/p>\n

Ngh\u1ec7 thu\u1eadt c\u1ee7a kho\u1ea3ng c\u00e1ch t\u0103ng d\u1ea7n<\/h2>\n

Trong th\u1ef1c t\u1ebf, s\u1ef1 ng\u1eaft qu\u00e3ng t\u1ed1i \u01b0u tu\u00e2n theo logic c\u1ee7a nh\u1eefng kho\u1ea3ng c\u00e1ch t\u0103ng d\u1ea7n<\/strong>. Ta \u00f4n l\u1ea1i l\u1ea7n \u0111\u1ea7u ngay sau khi h\u1ecdc ban \u0111\u1ea7u, ch\u1eb3ng h\u1ea1n m\u1ed9t ng\u00e0y sau \u0111\u00f3. R\u1ed3i \u0111\u1ec3 ba ng\u00e0y tr\u00f4i qua tr\u01b0\u1edbc l\u1ea7n \u00f4n th\u1ee9 hai. R\u1ed3i m\u1ed9t tu\u1ea7n. R\u1ed3i m\u1ed9t th\u00e1ng. \u00dd t\u01b0\u1edfng ch\u1ee7 \u0111\u1ea1o r\u1ea5t \u0111\u01a1n gi\u1ea3n: quay l\u1ea1i th\u00f4ng tin ngay tr\u01b0\u1edbc khi n\u00f3 s\u1eafp bi\u1ebfn m\u1ea5t, kh\u00f4ng qu\u00e1 s\u1edbm c\u0169ng kh\u00f4ng qu\u00e1 mu\u1ed9n.<\/p>\n

X\u00e2y d\u1ef1ng nh\u1eefng kho\u1ea3ng c\u00e1ch n\u00e0y kh\u00f4ng h\u1ec1 ph\u1ee9c t\u1ea1p, nh\u01b0ng \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 s\u1eb5n trong tay m\u1ed9t n\u1ed9i dung \u0111\u00e3 r\u00f5 r\u00e0ng v\u00e0 \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c t\u1ed1t, \u0111\u1ec3 kh\u00f4ng m\u1ea5t th\u1eddi gian gi\u1ea3i m\u00e3 l\u1ea1i m\u1ed9t b\u00e0i h\u1ecdc d\u00e0y \u0111\u1eb7c m\u1ed7i l\u1ea7n \u00f4n. \u0110\u00e2y ch\u00ednh l\u00e0 n\u01a1i nh\u1eefng c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c ngh\u0129 ra cho vi\u1ec7c \u00f4n t\u1eadp<\/a><\/strong> t\u1ea1o n\u00ean kh\u00e1c bi\u1ec7t th\u1eadt s\u1ef1: c\u00f4 \u0111\u1ecdng m\u1ed9t ch\u01b0\u01a1ng t\u1eeb tr\u01b0\u1edbc cho ph\u00e9p d\u00e0nh m\u1ed7i bu\u1ed5i ng\u1eaft qu\u00e3ng cho ch\u00ednh vi\u1ec7c ghi nh\u1edb, thay v\u00ec cho vi\u1ec7c \u0111\u1ecdc l\u1ea1i nh\u1ecdc nh\u1eb1n m\u1ed9t v\u0103n b\u1ea3n qu\u00e1 d\u00e0i.<\/p>\n

\u0110\u01b0a s\u1ef1 ng\u1eaft qu\u00e3ng v\u00e0o cu\u1ed9c s\u1ed1ng c\u1ee7a b\u1ea1n<\/h2>\n

\u00c1p d\u1ee5ng \u00f4n t\u1eadp ng\u1eaft qu\u00e3ng kh\u00f4ng \u0111\u00f2i h\u1ecfi c\u00f4ng c\u1ee5 ph\u1ee9c t\u1ea1p n\u00e0o. M\u1ed9t cu\u1ed1n l\u1ecbch \u0111\u01a1n gi\u1ea3n l\u00e0 \u0111\u1ee7 \u0111\u1ec3 ghi l\u1ea1i ng\u00e0y quay l\u1ea1i v\u1edbi m\u1ed7i ch\u1ee7 \u0111\u1ec1. Nh\u1eefng t\u1ea5m th\u1ebb, b\u1eb1ng gi\u1ea5y ho\u1eb7c k\u1ef9 thu\u1eadt s\u1ed1, cho ph\u00e9p s\u1eafp x\u1ebfp c\u00e1c l\u1ea7n \u00f4n n\u00e0y theo ch\u1ee7 \u0111\u1ec1 v\u00e0 theo d\u00f5i ti\u1ebfn \u0111\u1ed9 c\u1ee7a ch\u00fang theo th\u1eddi gian.<\/p>\n

H\u00e0nh \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 nh\u1ea5t v\u1eabn l\u00e0 k\u1ebft h\u1ee3p s\u1ef1 ng\u1eaft qu\u00e3ng v\u1edbi h\u1ed3i t\u01b0\u1edfng ch\u1ee7 \u0111\u1ed9ng<\/strong>: thay v\u00ec \u0111\u1ecdc l\u1ea1i ghi ch\u00fa m\u1ed9t c\u00e1ch th\u1ee5 \u0111\u1ed9ng m\u1ed7i bu\u1ed5i, ta t\u1ef1 ki\u1ec3m tra m\u00ecnh, c\u1ed1 g\u1eafng t\u00e1i d\u1ef1ng th\u00f4ng tin t\u1eeb tr\u00ed nh\u1edb tr\u01b0\u1edbc khi ki\u1ec3m ch\u1ee9ng. Ch\u00ednh s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u1ea3 hai, \u0111\u00fang th\u1eddi \u0111i\u1ec3m v\u00e0 \u0111\u00fang h\u00e0nh \u0111\u1ed9ng, bi\u1ebfn m\u1ed9t s\u1ef1 chu\u1ea9n b\u1ecb mong manh th\u00e0nh ki\u1ebfn th\u1ee9c b\u1ec1n v\u1eefng.<\/p>\n

H\u00e3y tr\u1edf l\u1ea1i v\u1edbi hai sinh vi\u00ean c\u1ee7a ch\u00fang ta. Ng\u01b0\u1eddi th\u1ee9 nh\u1ea5t kh\u00f4ng thi\u1ebfu k\u1ef7 lu\u1eadt hay \u0111\u1ed9ng l\u1ef1c. Anh ta ch\u1ec9 t\u00ednh sai th\u1eddi \u0111i\u1ec3m. To\u00e0n b\u1ed9 n\u0103ng l\u01b0\u1ee3ng c\u1ee7a anh d\u1ed3n v\u00e0o m\u1ed9t \u0111\u00eam duy nh\u1ea5t, trong khi l\u1ebd ra n\u00f3 n\u00ean \u0111\u01b0\u1ee3c r\u1ea3i \u0111\u1ec1u trong nhi\u1ec1u tu\u1ea7n. \u00d4n \u0111\u00fang l\u00fac, ch\u1ee9 kh\u00f4ng ph\u1ea3i \u00f4n nhi\u1ec1u h\u01a1n, ch\u00ednh l\u00e0 \u0111i\u1ec1u t\u00e1ch bi\u1ec7t ki\u1ebfn th\u1ee9c b\u1ed1c h\u01a1i kh\u1ecfi ki\u1ebfn th\u1ee9c c\u00f2n l\u1ea1i. Tin t\u1ed1t l\u00e0 ph\u00e9p t\u00ednh n\u00e0y c\u00f3 th\u1ec3 h\u1ecdc \u0111\u01b0\u1ee3c, v\u00e0 n\u00f3 g\u00f3i g\u1ecdn trong m\u1ed9t quy t\u1eafc duy nh\u1ea5t: \u0111\u1eebng bao gi\u1edd \u0111\u1ec3 m\u1ed9t th\u00f4ng tin phai m\u1edd ho\u00e0n to\u00e0n tr\u01b0\u1edbc khi quay l\u1ea1i v\u1edbi n\u00f3.<\/p>\n","protected":false},"excerpt":{"rendered":"

Hai sinh vi\u00ean chu\u1ea9n b\u1ecb cho c\u00f9ng m\u1ed9t k\u1ef3 thi. Ng\u01b0\u1eddi th\u1ee9 nh\u1ea5t d\u00e0nh c\u1ea3 \u0111\u00eam tr\u01b0\u1edbc \u0111\u1ec3 \u0111\u1ecdc l\u1ea1i m\u1ecdi th\u1ee9 m\u1ed9t m\u1ea1ch, h\u1ebft c\u1ed1c c\u00e0 ph\u00ea n\u00e0y \u0111\u1ebfn c\u1ed1c kh\u00e1c, v\u00e0 tr\u00ecnh di\u1ec7n h\u00f4m sau v\u1edbi c\u1ea3m gi\u00e1c v\u1eefng ch\u1eafc r\u1eb1ng m\u00ecnh \u0111\u00e3 n\u1eafm v\u1eefng ch\u1ee7 \u0111\u1ec1. Ng\u01b0\u1eddi th\u1ee9 hai \u0111\u00e3 \u00f4n c\u00f9ng […]<\/p>\n","protected":false},"author":1,"featured_media":2141,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[],"class_list":["post-2126","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hoc-tap-va-nhan-thuc"],"_links":{"self":[{"href":"https:\/\/resoomer.com\/education\/vi\/wp-json\/wp\/v2\/posts\/2126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resoomer.com\/education\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resoomer.com\/education\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resoomer.com\/education\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resoomer.com\/education\/vi\/wp-json\/wp\/v2\/comments?post=2126"}],"version-history":[{"count":0,"href":"https:\/\/resoomer.com\/education\/vi\/wp-json\/wp\/v2\/posts\/2126\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resoomer.com\/education\/vi\/wp-json\/wp\/v2\/media\/2141"}],"wp:attachment":[{"href":"https:\/\/resoomer.com\/education\/vi\/wp-json\/wp\/v2\/media?parent=2126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resoomer.com\/education\/vi\/wp-json\/wp\/v2\/categories?post=2126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resoomer.com\/education\/vi\/wp-json\/wp\/v2\/tags?post=2126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}