{"id":1207,"date":"2021-10-09T00:53:16","date_gmt":"2021-10-09T00:53:16","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=1207"},"modified":"2021-10-14T22:12:03","modified_gmt":"2021-10-14T15:12:03","slug":"luc-ma-sat-xuat-hien-khi-nao-giai-dap-vat-ly-8-chu-de-luc-ma-sat","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/luc-ma-sat-xuat-hien-khi-nao-giai-dap-vat-ly-8-chu-de-luc-ma-sat\/","title":{"rendered":"L\u1ef1c ma s\u00e1t xu\u1ea5t hi\u1ec7n khi n\u00e0o? Gi\u1ea3i \u0111\u00e1p v\u1eadt l\u00fd 8 ch\u1ee7 \u0111\u1ec1 l\u1ef1c ma s\u00e1t."},"content":{"rendered":"\n<script type=\"text\/javascript\">\nimg_numb = 10;\n<\/script>\n\n\n\n<p class=\"wp-block-paragraph\">Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"L\u1ef1c ma s\u00e1t - B\u00e0i 13 - V\u1eadt l\u00ed 10 - C\u00f4 Nguy\u1ec5n Quy\u00ean (HAY NH\u1ea4T)\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Pgt-ECm7D2A?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption>L\u1ef1c ma s\u00e1t &#8211; B\u00e0i 13 &#8211; V\u1eadt l\u00fd 10<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong cu\u1ed9c s\u1ed1ng c\u1ee7a ch\u00fang ta c\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean v\u1eadt. N\u1ebfu ch\u1ec9 \u0111\u1ec3 quan s\u00e1t b\u1eb1ng m\u1eaft th\u01b0\u1eddng, ch\u00fang ta th\u01b0\u1eddng kh\u00f4ng nh\u1eadn ra \u0111i\u1ec1u n\u00e0y. M\u1ed9t trong s\u1ed1 l\u1ef1c kh\u00f3 \u0111\u1ec3 nh\u1eadn bi\u1ebft nh\u1ea5t \u0111\u00f3 ch\u00ednh l\u00e0 l\u1ef1c ma s\u00e1t. Lo\u1ea1i l\u1ef1c n\u00e0y xu\u1ea5t hi\u1ec7n khi n\u00e0o? L\u1ef1c n\u00e0y c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn v\u1eadt ra sao? L\u1eddi gi\u1ea3i \u0111\u00e1p cho nh\u1eefng c\u00e2u h\u1ecfi n\u00e0y \u0111\u01b0\u1ee3c m\u1edf ra trong ch\u01b0\u01a1ng tr\u00ecnh v\u1eadt l\u00fd l\u1edbp 8. Ch\u00fang ta h\u00e3y c\u00f9ng nhau t\u00ecm hi\u1ec3u v\u1ec1 ch\u1ee7 \u0111\u1ec1 n\u00e0y trong b\u00e0i vi\u1ebft ng\u00e0y h\u00f4m nay nh\u00e9!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ecbnh ngh\u0129a v\u1ec1 l\u1ef1c ma s\u00e1t<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ef1c l\u00e0 g\u00ec?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi \u0111\u1ebfn v\u1edbi nh\u1eefng \u0111\u1ecbnh ngh\u0129a v\u1ec1 s\u1ef1 ma s\u00e1t, ch\u00fang ta c\u1ea7n ph\u1ea3i t\u00ecm hi\u1ec3u l\u1ef1c l\u00e0 g\u00ec? Hi\u1ec3u v\u1ec1 l\u1ef1c, c\u00e1c em s\u1ebd c\u00f3 c\u00e1i nh\u00ecn t\u1ed5ng qu\u00e1t h\u01a1n v\u1ec1 c\u00e1c lo\u1ea1i l\u1ef1c \u0111\u01b0\u1ee3c t\u00ecm hi\u1ec3u. L\u1ef1c \u0111\u01b0\u1ee3c sinh ra khi v\u1eadt n\u00e0y t\u00e1c d\u1ee5ng \u0111\u1ea9y ho\u1eb7c k\u00e9o l\u00ean v\u1eadt kh\u00e1c. Hay n\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, khi m\u1ed9t v\u1eadt t\u00e1c \u0111\u1ed9ng l\u00ean m\u1ed9t v\u1eadt kh\u00e1c s\u1ebd sinh ra l\u1ef1c. Trong cu\u1ed9c s\u1ed1ng, m\u1ecdi v\u1eadt \u0111\u1ec1u ch\u1ecbu l\u1ef1c t\u00e1c \u0111\u1ed9ng. Tr\u1ecdng l\u1ef1c ch\u00ednh l\u00e0 l\u1ef1c c\u01a1 b\u1ea3n nh\u1ea5t m\u00e0 m\u1ecdi v\u1eadt \u0111\u1ec1u b\u1ecb t\u00e1c d\u1ee5ng l\u00ean. Tr\u00e1i \u0111\u1ea5t kh\u00f4ng ng\u1eebng xoay quanh m\u00ecnh v\u00e0 qu\u1ef9 \u0111\u1ea1o. N\u1ebfu kh\u00f4ng c\u00f3 tr\u1ecdng l\u1ef1c, m\u1ecdi v\u1eadt \u0111\u1ec1u c\u00f3 th\u1ec3 b\u1ecb v\u0103ng ra kh\u1ecfi m\u1eb7t \u0111\u1ea5t trong qu\u00e1 tr\u00ecnh tr\u00e1i \u0111\u1ea5t quay.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y ch\u00ednh l\u00e0 l\u00fd do v\u00ec sao ch\u00fang ta ph\u1ea3i t\u00ecm hi\u1ec3u v\u1ec1 l\u1ef1c v\u00e0 c\u00e1c lo\u1ea1i l\u1ef1c. S\u1ef1 ma s\u00e1t l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i l\u1ef1c \u0111\u1eb7c bi\u1ec7t m\u00e0 ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u trong b\u00e0i vi\u1ebft ng\u00e0y h\u00f4m nay. Lo\u1ea1i l\u1ef1c n\u00e0y kh\u00f4ng gi\u1ed1ng nh\u01b0 nh\u1eefng l\u1ef1c th\u00f4ng th\u01b0\u1eddng ch\u00fang ta \u0111\u00e3 t\u00ecm hi\u1ec3u. Ma s\u00e1t ch\u1ec9 x\u1ea3y ra trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p nh\u1ea5t \u0111\u1ecbnh. Tuy nhi\u00ean, k\u1ebft qu\u1ea3 t\u00e1c d\u1ee5ng l\u1ef1c l\u00ean v\u1eadt v\u1eabn gi\u1ed1ng nh\u01b0 l\u1ef1c th\u00f4ng th\u01b0\u1eddng. Sau khi h\u1ecdc v\u1ec1 lo\u1ea1i l\u1ef1c n\u00e0y, c\u00e1c em s\u1ebd c\u1ea7n ph\u1ea3i ph\u00e2n t\u00edch l\u1ef1c. Vi\u1ec7c bi\u1ec3u di\u1ec5n l\u1ef1c v\u00e0 t\u00ednh to\u00e1n t\u1ed5 h\u1ee3p l\u1ef1c s\u1ebd chi ti\u1ebft h\u01a1n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/10\/hqdefault.jpg\" alt=\"V\u00ed d\u1ee5 minh h\u1ecda v\u1ec1 l\u1ef1c\" class=\"wp-image-2274\" width=\"611\" height=\"458\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/hqdefault.jpg 480w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/hqdefault-300x225.jpg 300w\" sizes=\"(max-width: 611px) 100vw, 611px\" \/><figcaption>V\u00ed d\u1ee5 minh h\u1ecda v\u1ec1 l\u1ef1c<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ma s\u00e1t l\u00e0 g\u00ec?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ef1c ma s\u00e1t l\u00e0 l\u1ef1c xu\u1ea5t hi\u1ec7n gi\u1eefa b\u1ec1 m\u1eb7t c\u1ee7a hai v\u1eadt khi hai v\u1eadt t\u00e1c d\u1ee5ng l\u1ef1c l\u00ean nhau. Lo\u1ea1i l\u1ef1c n\u00e0y ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac, \u0111\u1ed9 l\u1edbn c\u1ee7a \u00e1p l\u1ef1c. C\u00e1c em c\u1ea7n ph\u00e2n bi\u1ec7t v\u1ec1 b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac v\u00e0 di\u1ec7n t\u00edch ti\u1ebfp x\u00fac. Ma s\u00e1t kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi di\u1ec7n t\u00edch ti\u1ebfp x\u00fac v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1ee7a v\u1eadt. Lo\u1ea1i l\u1ef1c n\u00e0y c\u00f2n \u0111\u01b0\u1ee3c chia ra th\u00e0nh hai tr\u01b0\u1eddng h\u1ee3p kh\u00e1c nhau. C\u00e1c em c\u1ea7n n\u1eafm r\u00f5 ki\u1ebfn th\u1ee9c v\u1ec1 hai d\u1ea1ng n\u00e0y \u0111\u1ec3 khi l\u00e0m b\u00e0i tr\u00e1nh b\u1ecb nh\u1ea7m l\u1eabn. Lo\u1ea1i l\u1ef1c n\u00e0y \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t lo\u1ea1i l\u1ef1c c\u1ea3n so v\u1edbi c\u00e1c l\u1ef1c th\u00f4ng th\u01b0\u1eddng.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/10\/luc-ma-sat-xuat-hien-khi-nao.jpg\" alt=\"L\u1ef1c ma s\u00e1t xu\u1ea5t hi\u1ec7n khi n\u00e0o\" class=\"wp-image-2266\" width=\"636\" height=\"318\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/luc-ma-sat-xuat-hien-khi-nao.jpg 1000w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/luc-ma-sat-xuat-hien-khi-nao-300x150.jpg 300w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/luc-ma-sat-xuat-hien-khi-nao-768x384.jpg 768w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/luc-ma-sat-xuat-hien-khi-nao-900x450.jpg 900w\" sizes=\"(max-width: 636px) 100vw, 636px\" \/><figcaption>L\u1ef1c ma s\u00e1t xu\u1ea5t hi\u1ec7n khi n\u00e0o<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Khi ch\u00fang ta th\u1ef1c hi\u1ec7n m\u1ed9t l\u1ef1c l\u00ean v\u1eadt m\u00e0 c\u00f3 xu\u1ea5t hi\u1ec7n l\u1ef1c ma s\u00e1t. Th\u00ec l\u1ef1c ma s\u00e1t s\u1ebd l\u00e0m gi\u1ea3m \u0111i \u0111\u1ed9 l\u1edbn c\u1ee7a l\u1ef1c t\u00e1c \u0111\u1ed9ng. \u0110\u00e2y ch\u00ednh l\u00e0 \u0111i\u1ec1u m\u00e0 ch\u00fang ta kh\u00f3 nh\u1eadn ra b\u1eb1ng m\u1eaft th\u01b0\u1eddng. Ch\u1ec9 khi th\u1ef1c hi\u1ec7n th\u00ed nghi\u1ec7m \u0111o \u0111\u1ed9 l\u1edbn c\u1ee7a l\u1ef1c t\u00e1c d\u1ee5ng ch\u00fang ta m\u1edbi c\u00f3 th\u1ec3 nh\u1eadn ra \u0111i\u1ec1u n\u00e0y. Kh\u00f4ng ch\u1ec9 v\u1eady, ma s\u00e1t c\u00f2n \u0111\u00f3ng vai tr\u00f2 l\u1edbn trong nhi\u1ec1u \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. Ch\u00fang ta c\u00f3 th\u1ec3 l\u1ea5y m\u1ed9t v\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 hi\u1ec3u h\u01a1n v\u1ec1 lo\u1ea1i l\u1ef1c n\u00e0y. Khi ch\u00fang ta \u0111i xu\u1ed1ng d\u1ed1c, b\u00e1nh xe ti\u1ebfp x\u00fac v\u1edbi m\u1eb7t \u0111\u01b0\u1eddng t\u1ea1o ra m\u1ed9t l\u1ef1c ma s\u00e1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang ta d\u00f9ng phanh xe \u0111\u1ec3 gi\u1ea3m v\u1eadn t\u1ed1c. \u0110\u1ed3ng th\u1eddi l\u00fac n\u00e0y l\u1ef1c ma s\u00e1t c\u0169ng t\u00e1c \u0111\u1ed9ng l\u1ef1c c\u1ea3n l\u00ean b\u00e1nh xe. Xe s\u1ebd \u0111i xu\u1ed1ng ch\u1eadm h\u01a1n so v\u1edbi b\u00ecnh th\u01b0\u1eddng. \u0110\u00e2y ch\u00ednh l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng v\u1ec1 l\u1ef1c ma s\u00e1t d\u1ec5 hi\u1ec3u. C\u00e1c em c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng v\u00ed d\u1ee5 n\u00e0y trong nh\u1eefng c\u00e2u h\u1ecfi v\u1eadn d\u1ee5ng. L\u1ef1c ma s\u00e1t xu\u1ea5t hi\u1ec7n nhi\u1ec1u trong cu\u1ed9c s\u1ed1ng th\u01b0\u1eddng ng\u00e0y. Tuy nhi\u00ean, ch\u00fang ta c\u00f3 nh\u1eadn ra hay kh\u00f4ng th\u00ec ph\u1ea3i d\u1ef1a v\u00e0o ki\u1ebfn th\u1ee9c c\u1ee7a b\u1ea3n th\u00e2n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c l\u1ef1c v\u1eadt \u0111ang ch\u1ecbu<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ef1c ma s\u00e1t tr\u01b0\u1ee3t<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eabn l\u00e0 l\u1ef1c ma s\u00e1t, nh\u01b0ng l\u1ef1c ma s\u00e1t tr\u01b0\u1ee3t xu\u1ea5t hi\u1ec7n trong tr\u01b0\u1eddng h\u1ee3p c\u1ed1 \u0111\u1ecbnh. L\u1ef1c n\u00e0y xu\u1ea5t hi\u1ec7n \u1edf m\u1eb7t ti\u1ebfp x\u00fac khi v\u1eadt chuy\u1ec3n \u0111\u1ed9ng tr\u01b0\u1ee3t tr\u00ean m\u1ed9t v\u1eadt kh\u00e1c, ho\u1eb7c b\u1ec1 m\u1eb7t kh\u00e1c. L\u1ef1c ma s\u00e1t tr\u01b0\u1ee3t c\u00f9ng ph\u01b0\u01a1ng, ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean v\u1eadt. Lo\u1ea1i l\u1ef1c n\u00e0y t\u1ea1o ra l\u1ef1c c\u1ea3n so v\u1edbi l\u1ef1c t\u00e1c d\u1ee5ng. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean v\u1eadt s\u1ebd b\u1ecb gi\u1ea3m \u0111i so v\u1edbi th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ma s\u00e1t tr\u01b0\u1ee3t c\u00f3 \u0111\u1ed9 l\u1edbn t\u1ec9 l\u1ec7 v\u1edbi \u0111\u1ed9 l\u1edbn c\u1ee7a \u00e1p l\u1ef1c, kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o di\u1ec7n t\u00edch ti\u1ebfp x\u00fac v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1ee7a v\u1eadt. H\u1ec7 s\u1ed1 ma s\u00e1t tr\u01b0\u1ee3t ph\u1ee5 thu\u1ed9c v\u00e0o v\u1eadt li\u1ec7u v\u00e0 b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac l\u1ef1c. H\u1ec7 s\u1ed1 n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ednh l\u1ef1c ma s\u00e1t trong t\u00ecnh hu\u1ed1ng \u0111\u00f3. C\u00e1c d\u1ea1ng b\u00e0i t\u1eadp c\u1ee7a c\u00e1c em c\u00f3 th\u1ec3 y\u00eau c\u1ea7u t\u00ednh \u0111\u1ed9 l\u1edbn c\u00e1c l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean v\u1eadt. C\u00e1c em n\u00ean nh\u1edb v\u1ec1 h\u1ec7 s\u1ed1 ma s\u00e1t v\u00e0 c\u00f4ng th\u1ee9c t\u00ednh l\u1ef1c \u0111\u1ec3 c\u00f3 th\u1ec3 ho\u00e0n th\u00e0nh b\u00e0i t\u1ed1t nh\u1ea5t. Trong nh\u1eefng b\u00e0i t\u1eadp c\u00f3 s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a l\u1ef1c ma s\u00e1t. C\u00e1c em c\u0169ng c\u1ea7n ph\u1ea3i bi\u1ec3u di\u1ec5n \u0111\u1ea7y \u0111\u1ee7 c\u00e1c l\u1ef1c \u0111\u1ec3 l\u00e0m b\u00e0i.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/10\/download-9.jpg\" alt=\"L\u1ef1c ma s\u00e1t tr\u01b0\u1ee3t\" class=\"wp-image-2268\" width=\"585\" height=\"329\"\/><figcaption>L\u1ef1c ma s\u00e1t tr\u01b0\u1ee3t<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ma s\u00e1t l\u0103n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ef1c ma s\u00e1t l\u0103n xu\u1ea5t hi\u1ec7n khi v\u1eadt n\u00e0y l\u0103n tr\u00ean m\u1ed9t v\u1eadt kh\u00e1c. Lo\u1ea1i l\u1ef1c n\u00e0y xu\u1ea5t hi\u1ec7n g\u00e2y c\u1ea3n tr\u1edf chuy\u1ec3n \u0111\u1ed9ng l\u0103n c\u1ee7a v\u1eadt. Hay n\u00f3i c\u00e1ch kh\u00e1c, ma s\u00e1t l\u0103n c\u00f3 th\u1ec3 gi\u1ea3m t\u1ed1c \u0111\u1ed9 v\u1eadt di chuy\u1ec3n so v\u1edbi th\u1ef1c t\u1ebf. H\u1ec7 s\u1ed1 c\u1ee7a l\u1ef1c n\u00e0y nh\u1ecf h\u01a1n so v\u1edbi ma s\u00e1t tr\u01b0\u1ee3t. Sau khi nghi\u00ean c\u1ee9u ra lo\u1ea1i ma s\u00e1t l\u0103n. Con ng\u01b0\u1eddi ch\u00fang ta \u0111\u00e3 \u1ee9ng d\u1ee5ng v\u00e0o cu\u1ed9c s\u1ed1ng th\u01b0\u1eddng ng\u00e0y. V\u00ec h\u1ec7 s\u1ed1 c\u1ee7a ma s\u00e1t l\u0103n nh\u1ecf h\u01a1n so v\u1edbi ma s\u00e1t tr\u01b0\u1ee3t n\u00ean ng\u01b0\u1eddi ta d\u00f9ng ma s\u00e1t l\u0103n thay th\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng b\u00e1nh xe, \u1ed5 bi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3m b\u1edbt h\u1ec7 s\u1ed1 ma s\u00e1t. T\u1eeb \u0111\u00f3 gi\u1ea3m b\u1edbt l\u1ef1c c\u1ea3n t\u1eeb ma s\u00e1t. Ch\u00fang ta c\u00f3 th\u1ec3 di chuy\u1ec3n v\u1eadt d\u1ec5 d\u00e0ng h\u01a1n. \u0110\u00f3 ch\u00ednh l\u00e0 l\u00fd thay v\u00ec ch\u00fang ta th\u1ea3 tr\u00f4i m\u1ed9t v\u1eadt xu\u1ed1ng m\u1eb7t ph\u1eb3ng nghi\u00eang. Ng\u01b0\u1eddi ta hay l\u1eafp th\u00eam b\u00e1nh xe \u0111\u1ec3 di chuy\u1ec3n v\u1eadt nh\u1eb9 nh\u00e0ng h\u01a1n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/10\/ma-sat-truot.png\" alt=\"Ma s\u00e1t l\u0103n\" class=\"wp-image-2269\" width=\"628\" height=\"347\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/ma-sat-truot.png 872w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/ma-sat-truot-300x166.png 300w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/ma-sat-truot-768x425.png 768w\" sizes=\"(max-width: 628px) 100vw, 628px\" \/><figcaption> Ma s\u00e1t l\u0103n<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 ma s\u00e1t xu\u1ea5t hi\u1ec7n khi n\u00e0o?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ef1c ma s\u00e1t ngh\u1ec9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ma s\u00e1t ngh\u1ec9 sinh ra khi m\u1ed9t v\u1eadt \u0111\u1ee9ng y\u00ean tr\u00ean m\u1ed9t b\u1ec1 m\u1eb7t kh\u00e1c, ho\u1eb7c v\u1eadt kh\u00e1c. \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a lo\u1ea1i l\u1ef1c n\u00e0y ch\u00ednh l\u00e0 c\u00f3 \u0111i\u1ec3m \u0111\u1eb7t l\u00ean v\u1eadt. B\u1ec1 m\u1eb7t c\u1ee7a v\u1eadt s\u00e1t v\u1edbi b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac. Ph\u01b0\u01a1ng c\u1ee7a ma s\u00e1t ngh\u1ec9 song song v\u1edbi m\u1eb7t ti\u1ebfp x\u00fac c\u1ee7a v\u1eadt. Chi\u1ec1u c\u1ee7a l\u1ef1c n\u00e0y ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi h\u1ee3p l\u1ef1c c\u1ee7a ngo\u1ea1i l\u1ef1c t\u00e1c \u0111\u1ed9ng. Ngo\u00e0i ra, chi\u1ec1u c\u1ee7a ma s\u00e1t ngh\u1ec9 c\u00f3 th\u1ec3 ng\u01b0\u1ee3c chi\u1ec1u chuy\u1ec3n \u0111\u1ed9ng khi v\u1eadt b\u1eaft \u0111\u1ea7u chuy\u1ec3n \u0111\u1ed9ng. Khi l\u1ef1c t\u00e1c d\u1ee5ng song song v\u1edbi m\u1eb7t ti\u1ebfp x\u00fac l\u1edbn h\u01a1n m\u1ed9t gi\u00e1 tr\u1ecb n\u00e0o \u0111\u00f3 th\u00ec v\u1eadt s\u1ebd tr\u01b0\u1ee3t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang ta c\u00f3 th\u1ec3 nh\u1eadn ra l\u1ef1c n\u00e0y khi b\u1eaft \u0111\u1ea7u t\u00e1c d\u1ee5ng l\u1ef1c l\u00ean m\u1ed9t v\u1eadt \u0111\u1ee9ng y\u00ean. V\u00ed d\u1ee5 ch\u00fang ta mu\u1ed1n \u0111\u1ea9y m\u1ed9t th\u00f9ng h\u00e0ng ra kh\u1ecfi v\u1ecb tr\u00ed n\u00f3 \u0111ang \u0111\u1ee9ng. Ch\u00fang ta d\u1ed3n m\u1ed9t l\u1ef1c \u0111\u1ec3 \u0111\u1ea9y chi\u1ebfc th\u00f9ng. Nh\u01b0ng khi ch\u00fang ta m\u1edbi t\u00e1c d\u1ee5ng l\u1ef1c, chi\u1ebfc th\u00f9ng ch\u01b0a th\u1ec3 di chuy\u1ec3n ngay. Cho \u0111\u1ebfn khi ch\u00fang ta t\u00e1c \u0111\u1ed9ng m\u1ed9t l\u1ef1c l\u1edbn h\u01a1nma s\u00e1t ngh\u1ec9 th\u00ec v\u1eadt b\u1eaft \u0111\u1ea7u di chuy\u1ec3n. \u0110\u1ed9 l\u1edbn c\u1ee7a l\u1ef1c n\u00e0y \u1edf m\u1ed7i v\u1eadt l\u00e0 kh\u00e1c nhau. V\u00ec v\u1eady, ch\u00fang ta kh\u00f3 c\u00f3 th\u1ec3 nh\u1eadn ra trong cu\u1ed9c s\u1ed1ng th\u01b0\u1eddng ng\u00e0y.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/10\/Force-00.jpg\" alt=\"\" class=\"wp-image-2270\" width=\"576\" height=\"288\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/Force-00.jpg 440w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/Force-00-300x150.jpg 300w\" sizes=\"(max-width: 576px) 100vw, 576px\" \/><figcaption>L\u1ef1c ma s\u00e1t ngh\u1ec9<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c d\u1ea1ng b\u00e0i t\u1eadp v\u1ec1 ma s\u00e1t<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u01b0 ch\u00fang ta \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn ph\u00eda tr\u00ean, c\u00e1c b\u00e0i t\u1eadp v\u1ec1 l\u1ef1c ma s\u00e1t v\u1eabn \u0111\u01b0\u1ee3c chia th\u00e0nh hai d\u1ea1ng th\u00f4ng th\u01b0\u1eddng. B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m v\u00e0 b\u00e0i t\u1eadp v\u1eadn d\u1ee5ng. Nh\u1eefng b\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m th\u01b0\u1eddng kh\u00f4ng \u0111\u00f2i h\u1ecfi qu\u00e1 nhi\u1ec1u v\u1ec1 t\u00ednh to\u00e1n. Ch\u1ee7 y\u1ebfu c\u00e1c em s\u1ebd \u0111\u01b0\u1ee3c ki\u1ec3m tra l\u00fd thuy\u1ebft v\u1ec1 c\u00e1c lo\u1ea1ima s\u00e1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i t\u1eadp v\u1eadn d\u1ee5ng s\u1ebd \u0111\u00f2i h\u1ecfi nhi\u1ec1u h\u01a1n v\u1ec1 t\u01b0 duy, t\u00ednh to\u00e1n v\u00e0 ph\u00e2n t\u00edch l\u1ef1c c\u1ee7a c\u00e1c em. Bi\u1ec3u di\u1ec5n l\u1ef1c l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean khi th\u1ef1c hi\u1ec7n nh\u1eefng b\u00e0i v\u1eadn d\u1ee5ng. Vi\u1ec7c ph\u00e2n t\u00edch l\u1ef1c \u0111\u00fang m\u1edbi c\u00f3 th\u1ec3 t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c \u0111\u1ed9 l\u1edbn c\u1ee7a c\u00e1c l\u1ef1c v\u00e0 t\u1ed5 h\u1ee3p l\u1ef1c. C\u00e1c em n\u00ean ghi nh\u1edb c\u00f4ng th\u1ee9c \u0111\u1ec3 l\u00e0m b\u00e0i ch\u00ednh x\u00e1c h\u01a1n nh\u00e9!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Xem th\u00eam<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"[V\u1eacT L\u00dd 10] CH\u1ee6 \u0110\u1ec0 L\u1ef0C MA S\u00c1T - L\u1ef0C MA S\u00c1T NGH\u1ec8\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/-enmvAMAq08?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn Trong cu\u1ed9c s\u1ed1ng c\u1ee7a ch\u00fang ta c\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean v\u1eadt. N\u1ebfu ch\u1ec9 \u0111\u1ec3 quan s\u00e1t b\u1eb1ng m\u1eaft th\u01b0\u1eddng, ch\u00fang ta th\u01b0\u1eddng kh\u00f4ng nh\u1eadn ra \u0111i\u1ec1u n\u00e0y. M\u1ed9t trong s\u1ed1 l\u1ef1c kh\u00f3 \u0111\u1ec3 nh\u1eadn bi\u1ebft nh\u1ea5t \u0111\u00f3 ch\u00ednh l\u00e0 l\u1ef1c ma s\u00e1t. Lo\u1ea1i l\u1ef1c n\u00e0y [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2266,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[4,7],"tags":[],"class_list":["post-1207","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trung-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1207","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=1207"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1207\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media\/2266"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=1207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=1207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=1207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}