Theo nh\u01b0 t\u00ean g\u1ecdi, th\u1ee7y tinh ch\u1ed1ng \u0111\u1ea1n l\u00e0 lo\u1ea1i k\u00ednh thu\u1ef7 tinh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0111\u1ea1n xuy\u00ean. V\u00ec sao thu\u1ef7 tinh ch\u1ed1ng \u0111\u1ea1n l\u1ea1i c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0111\u1ea1n xuy\u00ean th\u1ee7ng?<\/p>\n\n\n\n
Th\u1ef1c ra th\u1ee7y tinh ch\u1ed1ng \u0111\u1ea1n kh\u00f4ng ph\u1ea3i ch\u1ec9 c\u00f3 th\u00e0nh ph\u1ea7n ho\u00e0n to\u00e0n l\u00e0 th\u1ee7y tinh m\u00e0 l\u00e0 m\u1ed9t lo\u1ea1i s\u1ea3n ph\u1ea9m ph\u1ee9c h\u1ee3p do thu\u1ef7 tinh (ho\u1eb7c thu\u1ef7 tinh h\u1eefu c\u01a1) qua gia c\u00f4ng \u0111\u1eb7c bi\u1ec7t v\u1edbi ch\u1ea5t d\u1ebbo m\u00e0 th\u00e0nh.<\/p>\n\n\n\n
Ch\u00fang ta \u0111\u1ec1u bi\u1ebft th\u1ee7y tinh c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m s\u00e1ng b\u00f3ng, trong su\u1ed1t v\u00e0 c\u00f3 \u0111\u1ed9 c\u1ee9ng cao h\u01a1n nhi\u1ec1u kim lo\u1ea1i. Th\u00f4ng th\u01b0\u1eddng ch\u1ec9 c\u00f3 kim c\u01b0\u01a1ng m\u1edbi c\u1eaft, r\u1ea1ch \u0111\u01b0\u1ee3c thu\u1ef7 tinh. Th\u1ebf nh\u01b0ng c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a thu\u1ef7 tinh l\u1ea1i th\u1ea5p, ch\u1ec9 c\u1ea7n va ch\u1ea1m nh\u1ecf l\u00e0 thu\u1ef7 tinh b\u1ecb v\u1ee1. Trong khi \u0111\u00f3 c\u00f3 nhi\u1ec1u lo\u1ea1i ch\u1ea5t d\u1ebbo v\u1eeba trong su\u1ed1t l\u1ea1i v\u1eeba b\u1ec1n, d\u1ebbo. Li\u1ec7u c\u00f3 th\u1ec3 d\u00f9ng c\u00e1ch n\u00e0o \u0111\u00f3 \u0111\u1ec3 c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p \u0111\u01b0\u1ee3c hai lo\u1ea1i v\u1eadt li\u1ec7u c\u00f3 t\u00ednh ch\u1ea5t l\u00fd, ho\u00e1 kh\u00e1c nhau th\u00e0nh m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u b\u1ed5 sung cho nhau, th\u00e0nh lo\u1ea1i v\u1eadt li\u1ec7u ph\u1ee9c h\u1ee3p k\u1ebft h\u1ee3p \u0111\u01b0\u1ee3c c\u1ea3 hai \u01b0u \u0111i\u1ec3m, lo\u1ea1i b\u1ecf \u0111\u01b0\u1ee3c c\u00e1c nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a t\u1eebng lo\u1ea1i v\u1eadt li\u1ec7u?<\/p>\n\n\n\n
V\u00e0o \u0111\u1ea7u th\u1ebf k\u1ef7 XX, m\u1ed9t c\u00f4ng ty th\u1ee7y tinh \u1edf n\u01b0\u1edbc Anh \u0111\u00e3 nghi\u00ean c\u1ee9u ch\u1ebf t\u1ea1o lo\u1ea1i k\u00ednh thu\u1ef7 tinh nhi\u1ec1u l\u1edbp. Vi\u1ec7c ch\u1ebf t\u00e1c lo\u1ea1i k\u00ednh n\u00e0y l\u00fac b\u1ea5y gi\u1edd th\u1ef1c hi\u1ec7n b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p th\u1ee7 c\u00f4ng. Tr\u01b0\u1edbc h\u1ebft ng\u01b0\u1eddi ta ph\u1ebft v\u00e0o b\u1ec1 m\u1eb7t t\u1ea5m k\u00ednh m\u1ed9t l\u1edbp keo x\u01b0\u01a1ng, sau khi \u0111\u1ec3 kh\u00f4 l\u1ea1i tr\u00e1ng m\u1ed9t l\u1edbp s\u01a1n men, l\u1ea1i k\u1eb9p v\u00e0o gi\u1eefa hai phi\u1ebfn k\u00ednh m\u1ed9t l\u1edbp xenluloza. Cho b\u00e3 r\u01b0\u1ee3u v\u00e0o, cu\u1ed1i c\u00f9ng cho v\u00e0o m\u00e1y \u00e9p tay, \u00e9p ch\u1eb7t l\u00e0 \u0111\u01b0\u1ee3c. K\u00ednh thu\u1ef7 tinh nhi\u1ec1u l\u1edbp v\u1eeba ch\u1ebf t\u1ea1o nh\u01b0 tr\u00ean s\u1ebd trong su\u1ed1t. Sau khi ki\u1ec3m tra ng\u01b0\u1eddi ta th\u1ea5y kh\u1ea3 n\u0103ng ch\u1ed1ng rung, ch\u1ecbu s\u00f3ng xung k\u00edch \u0111\u1ec1u v\u01b0\u1ee3t xa th\u1ee7y tinh th\u01b0\u1eddng. Th\u1ebf h\u1ec7 thu\u1ef7 tinh ch\u1ed1ng \u0111\u1ea1n an to\u00e0n \u0111\u00e3 h\u00ecnh th\u00e0nh nh\u01b0 v\u1eady \u0111\u00f3.<\/p>\n\n\n\n
V\u00ec k\u00ednh thu\u1ef7 tinh nhi\u1ec1u l\u1edbp c\u00f3 nhi\u1ec1u t\u00ednh n\u0103ng \u0111\u00e1ng qu\u00fd nh\u01b0 v\u1eady, n\u00ean t\u1eeb khi m\u1edbi xu\u1ea5t hi\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c m\u1ecdi ng\u01b0\u1eddi h\u1ebft s\u1ee9c c\u1ed5 v\u0169 v\u00e0 t\u00e1n d\u01b0\u01a1ng. Ti\u1ebfn th\u00eam m\u1ed9t b\u01b0\u1edbc ng\u01b0\u1eddi ta ngh\u0129 \u0111\u1ebfn vi\u1ec7c d\u00f9ng m\u1ed9t l\u1edbp m\u1ecfng th\u00e9p thu\u1ef7 tinh, r\u1ed3i l\u1ea1i m\u1ed9t ch\u1ea5t d\u1ebbo ch\u1ea5t l\u01b0\u1ee3ng cao, r\u1ed3i ti\u1ebfp t\u1ee5c x\u1ebfp ch\u00fang t\u1eebng l\u1edbp v\u1edbi nhau, ch\u1ebf t\u1ea1o \u0111\u01b0\u1ee3c m\u1ed9t lo\u1ea1i k\u00ednh thu\u1ef7 tinh nhi\u1ec1u l\u1edbp ho\u00e0n to\u00e0n m\u1edbi. Th\u00e0nh ph\u1ea7n c\u1ee7a th\u00e9p th\u1ee7y tinh v\u00e0 th\u1ee7y tinh th\u01b0\u1eddng ho\u00e0n to\u00e0n gi\u1ed1ng nhau, nh\u01b0ng khi qua ch\u1ebf \u0111\u1ed9 t\u00f4i l\u1eeda \u0111\u1eb7c bi\u1ec7t, c\u00e1c kh\u1ea3 n\u0103ng ch\u1ed1ng rung, ch\u1ecbu s\u00f3ng xung k\u00edch \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u0103ng cao nhi\u1ec1u l\u1ea7n. Khi \u0111em k\u00ednh th\u00e9p thu\u1ef7 tinh ch\u1ebf t\u1ea1o k\u00ednh th\u1ee7y tinh nhi\u1ec1u l\u1edbp s\u1ebd t\u1ea1o \u0111\u01b0\u1ee3c ch\u1ebf ph\u1ea9m h\u1ebft s\u1ee9c r\u1eafn ch\u1eafc, \u0111\u1ea1n b\u1eafn kh\u00f4ng th\u1ee7ng n\u00ean \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 k\u00ednh ch\u1ed1ng \u0111\u1ea1n.<\/p>\n\n\n\n
Ngo\u00e0i thu\u1ef7 tinh th\u00f4ng th\u01b0\u1eddng ng\u01b0\u1eddi ta c\u0169ng d\u00f9ng th\u1ee7y tinh h\u1eefu c\u01a1 \u0111\u1ec3 ch\u1ebf t\u1ea1o k\u00ednh ch\u1ed1ng \u0111\u1ea1n, v\u00e0 trong k\u00ednh nhi\u1ec1u l\u1edbp n\u00e0y \u0111\u01b0\u01a1ng nhi\u00ean l\u00e0 kh\u00f4ng c\u00f3 thu\u1ef7 tinh th\u01b0\u1eddng. Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 d\u00f9ng nh\u00f4m oxit l\u00e0m nguy\u00ean li\u1ec7u \u0111\u1ec3 ch\u1ebf t\u1ea1o m\u1ed9t lo\u1ea1i g\u1ed1m hi\u1ec7n \u0111\u1ea1i trong su\u1ed1t. Lo\u1ea1i g\u1ed1m n\u00e0y ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao, ch\u1ecbu \u0111\u01b0\u1ee3c s\u00f3ng xung k\u00edch, n\u00ean \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m k\u00ednh c\u1eeda s\u1ed5 cho m\u00e1y bay si\u00eau thanh v\u00e0 k\u00ednh ch\u1ed1ng \u0111\u1ea1n cho \u00f4 t\u00f4 con. Ng\u00e0y nay c\u00e1c lo\u1ea1i k\u00ednh thu\u1ef7 tinh ch\u1ed1ng \u0111\u1ea1n \u0111\u01b0\u1ee3c xem l\u00e0 k\u00ednh an to\u00e0n s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong xe qu\u00e2n s\u1ef1, trong l\u0129nh v\u1ef1c h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: K\u00ednh ch\u1ed1ng \u0111\u1ea1n; V\u1eadt li\u1ec7u ph\u1ee9c h\u1ee3p.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Theo nh\u01b0 t\u00ean g\u1ecdi, th\u1ee7y tinh ch\u1ed1ng \u0111\u1ea1n l\u00e0 lo\u1ea1i k\u00ednh thu\u1ef7 tinh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0111\u1ea1n xuy\u00ean. V\u00ec sao thu\u1ef7 tinh ch\u1ed1ng \u0111\u1ea1n l\u1ea1i c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0111\u1ea1n xuy\u00ean th\u1ee7ng? Th\u1ef1c ra th\u1ee7y tinh ch\u1ed1ng \u0111\u1ea1n kh\u00f4ng ph\u1ea3i ch\u1ec9 c\u00f3 th\u00e0nh ph\u1ea7n ho\u00e0n to\u00e0n l\u00e0 th\u1ee7y tinh m\u00e0 l\u00e0 m\u1ed9t lo\u1ea1i s\u1ea3n […]<\/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":[8,15],"tags":[],"class_list":["post-7829","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7829","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=7829"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7829\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7829"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7829"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}