T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 5 – Arkady Leokum i\u00eam qu\u1eb9t c\u00f3 m\u1ed9t l\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n l\u00e2u d\u00e0i. Ngay t\u1eeb l\u00fac con ng\u01b0\u1eddi c\u00f2n s\u1ed1ng trong hang th\u00ec con ng\u01b0\u1eddi c\u0169ng \u0111\u00e3 c\u00f3 c\u00e1ch \u0111\u00e1nh l\u1eeda r\u1ed3i. C\u00f3 th\u1ec3 l\u00e0 h\u1ecd \u0111\u00e3 c\u00e0 hai vi\u00ean \u0111\u00e1 l\u1eeda v\u1edbi nhau.<\/p>\n\n\n\n
Ng\u01b0\u1eddi Ai C\u1eadp c\u1ed5 c\u00e0 m\u1ea1nh m\u0169i khoan, b\u00f9i nh\u00f9i v\u00e0 mi\u1ebfng g\u1ed7 kh\u00f4 l\u00e0m cho n\u00f3 ng\u00fan l\u1eeda l\u00ean v\u00e0 b\u1eaft l\u1eeda. C\u00f2n ng\u01b0\u1eddi Hy L\u1ea1p c\u1ed5 th\u00ec c\u00e0 c\u00e1i s\u1eebng h\u01b0\u01a1u v\u00e0o l\u00e1 nguy\u1ec7t qu\u1ebf. Ng\u01b0\u1eddi La M\u00e3 c\u1ed5 th\u00ec \u0111\u00e1nh hai h\u00f2n \u0111\u00e1 l\u1eeda v\u00e0o nhau cho tia l\u1eeda b\u1eafn v\u00e0o mi\u1ebfng g\u1ed7 c\u00f3 ph\u1ebft l\u01b0u hu\u1ef3nh. Th\u1eddi Trung c\u1ed5 ng\u01b0\u1eddi ta l\u1ea5y thanh s\u1eaft \u0111\u00e1nh v\u00e0o \u0111\u00e1 l\u1eeda cho b\u1eafn tia l\u1eeda v\u00e0o gi\u1ebb r\u00e1ch, v\u00e0o r\u00eau ho\u1eb7c t\u1ea3o ph\u01a1i kh\u00f4. Nh\u01b0ng di\u00eam qu\u1eb9t ng\u00e0y nay b\u1eadt l\u00ean l\u1eeda l\u00e0 nh\u1edd \u0111\u00e3 ph\u00e1t hi\u1ec7n ra ch\u1ea5t phosphor, m\u1ed9t ch\u1ea5t r\u1ea5t d\u1ec5 b\u1eaft l\u1eeda \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. Ng\u00e0y nay, ta c\u00f3 hai lo\u1ea1i di\u00eam qu\u1eb9t th\u00f4ng d\u1ee5ng. M\u1ed9t lo\u1ea1i qu\u1eb9t l\u00ean b\u1ea5t c\u1ee9 c\u00e1i g\u00ec nham nh\u00e1m th\u00ec \u0111\u1ec1u b\u1eadt th\u00e0nh l\u1eeda. Lo\u1ea1i kia an to\u00e0n h\u01a1n b\u1edfi ph\u1ea3i qu\u1eb9t v\u00e0o nh\u1eefng g\u00ec \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb tr\u01b0\u1edbc th\u00ec m\u1edbi b\u1eadt th\u00e0nh l\u1eeda.<\/p>\n\n\n\n
Lo\u1ea1i di\u00eam qu\u1eb9t th\u1ee9 nh\u1ea5t \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o b\u1eb1ng c\u00e1ch tr\u01b0\u1edbc h\u1ebft nh\u00fang c\u00e2y qu\u1eb9t v\u00e0o dung d\u1ecbch ammonium phosphate, k\u1ebf \u0111\u00f3 m\u1ed9t \u0111\u1ea7u que di\u00eam \u0111\u01b0\u1ee3c nh\u00fang v\u00e0o ch\u1ea5t parafin l\u1ecfng, sau \u0111\u00f3 nh\u00fang v\u00e0o h\u1ed3 nh\u00e3o g\u1ed3m oxide ch\u00ec v\u00e0 h\u1ee3p ch\u1ea5t phosphor, khi b\u1ecb ch\u00e0 x\u00e1t h\u1ee3p ch\u1ea5t phosphor v\u00e0 oxide ch\u00ec s\u1ebd b\u00f9ng ch\u00e1y l\u00e0m cho ch\u1ea5t parafin ch\u00e1y theo, \u0111\u1ed3ng th\u1eddi c\u00e2y di\u00eam (b\u1eb1ng g\u1ed7) c\u0169ng ch\u00e1y.<\/p>\n\n\n\n
Lo\u1ea1i di\u00eam qu\u1eb9t an to\u00e0n th\u00ec \u0111\u1ea7u di\u00eam qu\u1eb9t (\u0111\u1ea7u c\u00f3 nh\u00fang ch\u1ea5t g\u00e2y h\u1ecfa) \u0111\u01b0\u1ee3c nh\u00fang v\u00e0o h\u1ee3p ch\u1ea5t g\u1ed3m antimony sulfide v\u00e0 potassium chlorate. Ph\u00eda ngo\u00e0i c\u1ee7a bao di\u00eam c\u00f3 ph\u1ebft ch\u1ea5t phosphor \u0111\u1ecf. H\u00f3a ch\u1ea5t \u1edf \u0111\u1ea7u qu\u1eb9t kh\u00f4ng d\u1ec5 b\u1eaft l\u1eeda tr\u1eeb phi qu\u1eb9t v\u00e0o ch\u1ed7 th\u00edch h\u1ee3p \u0111\u00e3 chu\u1ea9n b\u1ecb tr\u01b0\u1edbc t\u1ee9c l\u00e0 ch\u1ed7 \u0111\u00e3 ph\u1ebft ch\u1ea5t phosphor \u0111\u1ecf. Qu\u1eb9t m\u1ed9t c\u00e1i l\u00e0 khi\u1ebfn cho m\u1ed9t ph\u1ea7n nh\u1ecf c\u1ee7a ch\u1ea5t phosphor \u0111\u1ecf b\u1ed1c h\u01a1i v\u00e0 m\u1ed3i l\u1eeda cho h\u1ee3p ch\u1ea5t \u1edf \u0111\u1ea7u di\u00eam qu\u1eb9t b\u1eaft l\u1eeda.<\/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 i\u00eam qu\u1eb9t c\u00f3 m\u1ed9t l\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n l\u00e2u d\u00e0i. Ngay t\u1eeb l\u00fac con ng\u01b0\u1eddi c\u00f2n s\u1ed1ng trong hang th\u00ec con ng\u01b0\u1eddi c\u0169ng \u0111\u00e3 c\u00f3 c\u00e1ch \u0111\u00e1nh l\u1eeda r\u1ed3i. C\u00f3 th\u1ec3 l\u00e0 h\u1ecd \u0111\u00e3 c\u00e0 hai vi\u00ean \u0111\u00e1 l\u1eeda […]<\/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-14735","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\/14735","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=14735"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14735\/revisions"}],"predecessor-version":[{"id":14736,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14735\/revisions\/14736"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}