T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 4 – Arkady Leokum<\/p>\n\n\n\n
Ng\u00e0y nay, ng\u01b0\u1eddi \u00c2u, M\u1ef9 h\u1ea7u nh\u01b0 kh\u00f4ng th\u1ec3 t\u01b0\u1edfng t\u01b0\u1ee3ng n\u1ed5i m\u1ed9t \u0111\u1eddi s\u1ed1ng m\u00e0 l\u1ea1i kh\u00f4ng c\u00f3 \u0111i\u1ec7n. Nh\u01b0ng th\u1ef1c ra con ng\u01b0\u1eddi m\u1edbi ch\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng \u0111i\u1ec7n k\u1ec3 t\u1eeb n\u0103m 1800 v\u1eeba qua m\u00e0 th\u00f4i. N\u0103m 1860, Alessandro Volta \u0111\u00e3 s\u00e1ng ch\u1ebf ra b\u00ecnh \u0111i\u1ec7n \u0111\u1ea7u ti\u00ean. Nh\u01b0 v\u1eady con ng\u01b0\u1eddi \u0111\u00e3 c\u00f3 \u0111\u01b0\u1ee3c ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t chi\u1ec1u, li\u00ean t\u1ee5c v\u00e0 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c. Ch\u1eb3ng bao l\u00e2u sau ng\u01b0\u1eddi ta \u0111\u00e3 t\u00ecm \u0111\u01b0\u1ee3c c\u00e1ch \u1ee9ng d\u1ee5ng d\u00f2ng \u0111i\u1ec7n \u0111\u1ec3 bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n n\u0103ng th\u00e0nh nhi\u1ec7t, \u00e1nh s\u00e1ng, ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc v\u00e0 c\u00e1c hi\u1ec7u \u1ee9ng t\u1eeb kh\u00e1c.<\/p>\n\n\n\n
Volta \u0111\u00e3 ph\u00e1t hi\u1ec7n ra lu\u1ed3ng \u0111i\u1ec7n \u201cch\u1ea3y\u201d li\u00ean t\u1ee5c. Ph\u00e1t hi\u1ec7n n\u00e0y \u0111\u01b0a \u0111\u1ebfn nh\u1eefng b\u01b0\u1edbc ti\u1ebfn l\u1edbn trong vi\u1ec7c khai th\u00e1c v\u00e0 s\u1eed d\u1ee5ng \u0111i\u1ec7n. Nh\u01b0ng nh\u1eefng m\u00e1y n\u00e0y m\u1edbi ch\u1ec9 cung c\u1ea5p \u0111\u01b0\u1ee3c \u0111i\u1ec7n kh\u00f4ng li\u00ean t\u1ee5c, kh\u00f4ng \u0111\u1ec1u. Nh\u01b0ng ph\u00e1t hi\u1ec7n c\u1ee7a Volta \u0111\u00e3 \u0111\u1ebfn vi\u1ec7c ph\u00e1t tri\u1ec3n v\u00e0 s\u1eed d\u1ee5ng \u0111i\u1ec7n tr\u1edf th\u00e0nh hi\u1ec7u d\u1ee5ng. Sir Humphry Davy nh\u1eadn th\u1ea5y r\u1eb1ng d\u00f2ng \u0111i\u1ec7n c\u00f3 th\u1ec3 ph\u00e2n t\u00edch c\u00e1c ch\u1ea5t ch\u1ee9a trong m\u1ed9t dung m\u00f4i. T\u1eeb ph\u00e1t hi\u1ec7n n\u00e0y \u0111\u00e3 d\u1eabn \u0111\u1ebfn m\u1ed9t qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u1ed3ng, chlorine, nhi\u1ec1u lo\u1ea1i acid, ph\u00e2n b\u00f3n v\u00e0 lo\u1ea1i th\u00e9p \u0111\u1eb7c bi\u1ec7t v\u1edbi gi\u00e1 r\u1ebb. Sau \u0111\u00f3 ng\u01b0\u1eddi ta l\u1ea1i ph\u00e1t hi\u1ec7n ra \u0111i\u1ec7n c\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n t\u1eeb. M\u1ed9t d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua \u201cl\u00f5i\u201d hay l\u00e0 cu\u1ed9n d\u00e2y kim lo\u1ea1i s\u1ebd t\u00e1c \u0111\u1ed9ng nh\u01b0 m\u1ed9t nam ch\u00e2m. Ph\u00e1t hi\u1ec7n n\u00e0y d\u1eabn t\u1edbi \u1ee9ng d\u1ee5ng ch\u1ebf t\u1ea1o ra nhi\u1ec1u lo\u1ea1i m\u00e1y s\u1eed d\u1ee5ng \u0111i\u1ec7n t\u1eeb. Sau \u0111\u00f3 n\u1eefa, Michael Faraday \u0111\u00e3 t\u00ecm ra \u0111\u01b0\u1ee3c ph\u01b0\u01a1ng ph\u00e1p tr\u00e1i ng\u01b0\u1ee3c l\u1ea1i t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng b\u1eb1ng nam ch\u00e2m di \u0111\u1ed9ng. Ph\u00e1t hi\u1ec7n n\u00e0y c\u0169ng d\u1eabn \u0111\u1ebfn \u1ee9ng d\u1ee5ng ch\u1ebf t\u1ea1o ra c\u00e1c \u0111i-na-m\u00f4 \u0111i\u1ec7n v\u00e0 bi\u1ebfn th\u1ebf.<\/p>\n\n\n\n
Nh\u01b0 v\u1eady, ta th\u1ea5y, \u0111i\u1ec7n m\u1edbi ch\u1ec9 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng v\u00e0o c\u00e1c m\u1ee5c \u0111\u00edch th\u1ef1c d\u1ee5ng g\u1ea7n \u0111\u00e2y th\u00f4i. V\u00e0, nh\u1eefng kh\u00e1m ph\u00e1 m\u1edbi d\u1eabn \u0111\u1ebfn nh\u1eefng \u00e1p d\u1ee5ng m\u1edbi v\u1eabn c\u00f2n \u0111ang ti\u1ebfp di\u1ec5n.<\/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 4 – Arkady Leokum Ng\u00e0y nay, ng\u01b0\u1eddi \u00c2u, M\u1ef9 h\u1ea7u nh\u01b0 kh\u00f4ng th\u1ec3 t\u01b0\u1edfng t\u01b0\u1ee3ng n\u1ed5i m\u1ed9t \u0111\u1eddi s\u1ed1ng m\u00e0 l\u1ea1i kh\u00f4ng c\u00f3 \u0111i\u1ec7n. Nh\u01b0ng th\u1ef1c ra con ng\u01b0\u1eddi m\u1edbi ch\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng \u0111i\u1ec7n k\u1ec3 t\u1eeb n\u0103m 1800 v\u1eeba qua […]<\/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-14385","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\/14385","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=14385"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14385\/revisions"}],"predecessor-version":[{"id":14386,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14385\/revisions\/14386"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}